污水处理厂调查报告及英文
污水处理调查报告（通用10篇）
污水处理调查报告（通用10篇）一、什么是污水处理污水处理(sewage treatment,wastewater treatment)：为使污水达到排入某一水体或再次使用的水质要求对其进行净化的过程。
污水处理被广泛应用于建筑、农业、交通、能源、石化、环保、城市景观、医疗、餐饮等各个领域，也越来越多地走进寻常百姓的日常生活。
二、什么是调查报告调查报告是一种说明性的文体，兼有通讯和评论的某些特点，但又与二者有着明显的区别。
与通讯相比，二者都有大量的事实材料，而且对事实的叙述都比较完整；但通讯往往是写一连串的事件情节，有形象的刻画和细节描绘，通过生动的事例和感人的形象来表现主题，而调查报告则侧重用事实说明问题，它的主题是由作者直接表述出来的。
与评论相比，它们都有鲜明的观点，有理论色彩；但评论文章主要是通过逻辑推理和论证来证实其观点，而调查报告则主要通过事实说明其观点，对调查对象作出评价，阐明其意义，或从总结点上的经验入手，讲明某个道理。
三、污水处理调查报告（通用10篇）当不太了解，又想弄清某一情况或事件时，我们通常要进行深入的调查研究，并根据调查情况撰写调查报告。
好的调查报告都具备一些什么特点呢？下面是小编精心整理的污水处理调查报告（通用10篇），希望对大家有所帮助。
污水处理调查报告1随着经济的发展，人们在改造世界的同时也不断地影响破坏着我们生存的环境。
保护环境、爱护家园也已经成为人类共同的呼声。
但是呼声过后，在经济利益面前，人们的实际状况又如何呢在水污染方面，人们更多地关注工业废水、生活污水造成的污染，但容易忽视了养猪业中超多的排泄物、冲洗后的废水同样给河流造成巨大的水体污染。
随着菜篮子工程的发展，近几年养猪业在同安悄然兴起，该行业的污水处理状况如何，成了我们关注的目标，因此，我们决定对同安的各种类型的养猪场进行调查，期望能提出一些建设性的污水处理方案。
一、养猪业污水的危害养猪业的发展，不可避免地向周围环境排放出超多污水。
参观处理废水厂英语作文
参观处理废水厂英语作文：Visit wastewater treatment plantThis weekend, the head teacher led us to visit the wastewater treatment plant. My mood was both excited and expectant. Afraid that we could not find a place, Uncle Lin, the staff member, came to take us to the factory.When we arrived at the destination, we found that the wastewater treatment plant was different from what I had imagined. The plant was green and beautiful, and some unknown and very fragrant flowers were planted. If we had not known in advance that it was a wastewater treatment plant, we would have thought it was just an ordinary plant. Uncle Tang of the wastewater treatment plant took us to visit the plant. First, we visited the exhibition hall. Here we learned that China is a country that is very short of water, and fresh water materials are especially rare. Water is an inorganic substance composed of hydrogen and oxygen. It is a colorless and odorless transparent liquid under normal temperature and pressure. Wastewater usually refers to the discharged water that is polluted and comes from life and production.The first process of wastewater treatment - grid, where the sewage collected by each sewage pipeline is filtered first, the garbage larger than 20mm is filtered out, and then the waste gas is purified by a waste gas purification equipment. In the process of treatment, what floats above is dead bacteria. In the process of purifying sewage, bacteria will keep splitting and dying, so we need to dispose of dead bacteria. The last step is pure exposure. After this step, the sewage looks very clean, but they still do not drink water. They are only reclaimed water, which can only be used for washing cars and watering flowers.In addition, during the visit, we learned that if any suspicious or substandard special harmful water enters the wastewater pipeline, the sewage treatment plant will start the emergency plan to dilute the harmful sewage and then treat it. If the concentration is still too high after dilution, it will be treated with drugs. Otherwise, the toxic water will kill all the bacteria in the activated sludge, which will be troublesome.Our city is getting more and more beautiful, but the water is getting dirtier anddirtier; Our city is getting richer, but water resources are getting less and less. The car is dirty, wash it with water; If the clothes are dirty, wash them with water; The road is dirty, wash it with water; But the water is dirty? With what? In order to protect this rare freshwater resource, let's cherish the water source from now on, protect the water environment, and save water!。
污水处理厂的运维调研报告范文
污水处理厂的运维调研报告范文英文版Sewage Treatment Plant Operations and Maintenance Survey Report TemplateIntroductionWith the rapid urbanization and industrialization of China, the issue of sewage treatment has become increasingly important. Sewage treatment plants play a crucial role in ensuring the quality of water resources and the overall environmental health. This survey report aims to provide insights into the operations and maintenance (O&M) of sewage treatment plants.Survey MethodologyThe survey was conducted over a period of three months, involving visits to ten sewage treatment plants across China. Data was collected through interviews with plant operators,observations of plant operations, and analysis of maintenance records.Key FindingsOperational Efficiency: Most plants operated at an efficiency level of over 90%, with only a few plants showing efficiency levels below 80%.Maintenance Challenges: Regular maintenance was found to be critical in maintaining plant efficiency. However, issues such as outdated equipment and limited funds for replacements were common challenges.Staff Training: Although most operators were well-trained, there was a need for regular refresher courses to keep up with advancements in technology and treatment methods.Environmental Impact: The plants were generally well-managed, minimizing environmental impacts. However, there were instances of water discharge not meeting set standards, indicating a need for tighter monitoring and enforcement.RecommendationsBased on the findings, the following recommendations are made:Increased Funding: Governments should allocate more funds for the upgrading and maintenance of sewage treatment plants.Staff Training: Regular training programs should be conducted to ensure operators are up-to-date with the latest technologies and treatment methods.Strict Monitoring: Tighter monitoring and enforcement measures should be implemented to ensure water discharge meets environmental standards.Public-Private Partnerships: Encouraging public-private partnerships can help bring in private sector expertise and funds to improve plant operations.ConclusionThe survey revealed that while sewage treatment plants in China are generally well-managed and efficient, there are still areas for improvement. With proper funding, training, andmonitoring, these plants can play an even more crucial role in ensuring environmental health and water quality.中文版污水处理厂运维调研报告范文引言随着中国城市化和工业化的快速发展，污水处理问题变得日益重要。
污水处理情况报告范文
污水处理情况报告范文英文回答：Wastewater treatment is an essential process that helps to remove pollutants from water before it is released back into the environment. It plays a crucial role inmaintaining the health and cleanliness of our water sources. In this report, I will provide an overview of the current situation of wastewater treatment in my area.The wastewater treatment facilities in my area arewell-maintained and efficient. They use advanced technologies to treat the wastewater and ensure that it meets the required standards before being discharged. The treatment process involves several stages, includingprimary treatment, secondary treatment, and tertiary treatment.During the primary treatment, solid materials and large particles are removed from the wastewater through processeslike sedimentation and filtration. This helps to reduce the organic load and remove any visible impurities. The wastewater then undergoes secondary treatment, which involves the use of biological processes to further break down organic matter. This is done through the use of bacteria and other microorganisms that feed on the organic pollutants.After the secondary treatment, the wastewater goes through the tertiary treatment, which is the final step in the process. This stage is designed to remove any remaining impurities and ensure that the water is safe for discharge. It may involve processes like filtration, disinfection, and chemical treatment.Overall, the wastewater treatment facilities in my area are highly effective in removing pollutants and ensuring the quality of the water. This is crucial for protecting the environment and public health. The treated water is often used for irrigation, industrial processes, or evenfor drinking after further purification.中文回答：污水处理是一项至关重要的工艺，它有助于将污染物从水中去除，然后再将其释放到环境中。
污水处理厂调查报告
• 传统活性污泥法是指利用活性污泥中的微生物来去除废水中 的有机物和有毒有害物质。其工作原理为，首先，废水和回 流的活性污泥一起进到曝气池先混合均匀后再进行充分地反 应，反应完全后送入二沉池进行分离工序。经过这些步骤后， 分离出来的活性污泥再通过回流系统回到曝气池，而废水也 得到了有效的净化。有机污染物先后进行了吸附和代谢两个 方面的工艺流程，最后成功降解，活性污泥也在这个池子里 成功循环一个生长周期。因此，传统活性污泥法净化废水很 有用，并且对处理净化程度要求较高的污水有着很好的适用 性。
2、氧化沟
氧化沟处理技术是20世纪50年代有荷兰人首创。60年代以来， 这项技术在国外已被广泛采用，工艺及构筑物有了很大的发展 和进步。随着对该技术缺点（占地面积大）的克服和对其优点 的逐步深入认识，目前已成为普遍采用的一项污水处理技术。 它在技术、经济等方面具有一系列独特的优点： （1）工艺流程简单、构筑物少，运行管理方便。一般情况下， 氧化沟工艺可比传统活性污泥法少建初沉池和污泥厌氧消化系 统，基建投资少。另外，由于不采用鼓风曝气和空气扩散器， 不建厌氧硝化系统，运行管理方便。
• （2）生化法
• 生物法是依靠活性污泥中的微生物具有摄取、分解等作 用，以废水中的有机污染物为“营养”，而使污染物本 身得到降解，从而水质得到净化的一种处理方法。生物 法主要包含两种，第一种是厌氧法，第二种是好氧法。 它们包含的处理工艺较多，有水解酸化工艺、生物接触 氧化工艺、UASB工艺等。
城市生活污水处理工艺
• 氧化沟的技术特点：
• 氧化沟一般由沟体、曝气设备、进出 水装置、导流和混合设备组成，沟体 的平面形状一般呈环形，也可以是长 方形、L形、圆形或其他形状，沟端 面形状多为矩形和梯形。 • 氧化沟法由于具有较长的水力停留时 间，较低的有机负荷和较长的污泥龄。 因此相比传统活性污泥法，可以省略 调节池，初沉池，污泥消化池，有的 还可以省略二沉池。
废水处理英语作文
废水处理英语作文Wastewater treatment is a critical process in our modern society, essential for protecting both public health and the environment. The process involves the removal of contaminants from wastewater, primarily from household sewage, which includes items such as human waste, household chemicals, and microorganisms. Here's a closer look at why wastewater treatment is so important and the steps involved in the process.Firstly, untreated wastewater can pose a significant threatto human health. It can contain harmful pathogens, including bacteria, viruses, and parasites, which can cause a range of illnesses if they enter the water supply or come into contact with humans. By treating wastewater, we can eliminate these pathogens, making the water safer for both human consumption and recreational use.Secondly, wastewater treatment helps protect aquatic ecosystems. When contaminants are released into natural water bodies, they can disrupt the balance of these ecosystems, leading to the death of fish and other aquatic life. Moreover, excess nutrients from wastewater, such as nitrogen and phosphorus, can cause eutrophication, which is the over-enrichment of water bodies with nutrients, leading to algal blooms and oxygen depletion that can kill aquatic life.The wastewater treatment process typically involves severalstages:1. Primary Treatment: This stage involves the removal of large solid objects and debris from the wastewater. It is usually done through physical processes like screening and sedimentation.2. Secondary Treatment: The secondary stage uses biological processes to break down organic matter in the wastewater. Microorganisms consume the organic material and convert it into harmless byproducts, such as carbon dioxide, water, and biomass.3. Tertiary Treatment: Also known as advanced treatment, this stage involves further processing to remove nutrients, suspended solids, and other contaminants. It may include processes like filtration, membrane separation, and disinfection.4. Sludge Treatment: The solid waste, or sludge, that is produced during the treatment process is also treated. This can involve processes like thickening, stabilization, and dewatering before it is disposed of or used as fertilizer.5. Disinfection: The final step in most wastewater treatment processes is disinfection, which kills any remaining pathogens to ensure the treated water is safe when it is released back into the environment.In conclusion, wastewater treatment is a vital component of our infrastructure that safeguards our health and the healthof our planet. As populations grow and water resources become more strained, the role of wastewater treatment in maintaining a clean and sustainable water supply will only become more critical. It is an area where continued investment and innovation are essential for our future.。
污水处理厂实习报告英语相关
污水处理厂实习报告英语相关Alright, here's an informal and conversational English report on a wastewater treatment plant internship experience:I stepped into the wastewater treatment plant, and the first thing that struck me was the smell. It wasn't what I expected, but it was definitely an eye-opening experience. The guys here are experts in their field, and they explained the entire process to me with so much enthusiasm.One day, I got the chance to see the actual filtration process. It was fascinating to watch the water go through different stages, from murky to clear. I couldn't believe how efficient the system was. And the team here makes sure everything runs smoothly.During my internship, I also got to work on some hands-on tasks. I helped with the maintenance of some equipment and even got to test the water quality. It was pretty coolto see how my efforts directly impacted the output.What I really liked about this internship was the sense of responsibility. Everyone here takes their job seriously, knowing that they're playing a crucial role in protecting the environment. It made me realize how important my work was, even if it was just a small part of the whole operation.Overall, my experience at the wastewater treatment plant was eye-opening and rewarding. I learned so much about the industry and got a chance to work with a great team. I'm definitely taking all these experiences with me and applying them in my future career.。
参观废水处理厂英语作文
参观废水处理厂英语作文英文回答：I visited a wastewater treatment plant recently, and it was a fascinating experience. I learned about the different stages of wastewater treatment, from screening and grit removal to biological treatment and disinfection. I was particularly impressed by the plant's use of technology to monitor and control the treatment process.The first stage of wastewater treatment is screening, which removes large objects like rags and sticks from the wastewater. Next, the wastewater flows to a grit chamber, where sand and other heavy particles settle out. The wastewater is then pumped to a primary clarifier, where the solids settle out and the clarified wastewater flows to the next stage of treatment.The next stage of treatment is biological treatment, which uses bacteria to break down the organic matter in thewastewater. The wastewater is typically passed through a series of tanks, each containing a different type of bacteria. The bacteria break down the organic matter into simpler compounds, which are then removed in the finalstage of treatment.The final stage of wastewater treatment is disinfection, which kills harmful bacteria and viruses. The wastewater is typically disinfected with chlorine or ultraviolet light. Once the wastewater has been disinfected, it is releasedinto the environment.I was very impressed by the wastewater treatment plant and the important role it plays in protecting our environment. I would encourage everyone to visit a wastewater treatment plant to learn more about how thisvital process works.中文回答：我最近参观了一个废水处理厂，那是一次十分有趣的经历。
污水厂社会实践报告
污水厂社会实践报告英文回答：I recently had the privilege of participating in a social practice at a wastewater treatment plant. It was an eye-opening experience that gave me a newfound appreciation for the complex and essential role that these facilities play in protecting our environment and public health.Upon arriving at the plant, I was immediately struck by its size and scale. The facility was a sprawling complex of buildings, tanks, and pipes, all working together to treat millions of gallons of wastewater each day. I was greeted by a team of friendly and knowledgeable staff who were eager to share their expertise.The first step in the wastewater treatment process is screening, which removes large objects like rags, sticks, and plastics from the wastewater. These objects can damage equipment and interfere with the treatment process. Next,the wastewater is pumped into a grit chamber, where sand and other heavy particles settle to the bottom.After screening and grit removal, the wastewater enters the primary clarifier. Here, the heavier solids settle to the bottom, while the lighter solids and liquids rise to the top. The settled solids are removed and sent to a digester, where they are broken down by bacteria. The supernatant from the primary clarifier is then sent to the secondary treatment process.Secondary treatment involves the use of activated sludge, which is a mixture of bacteria and other microorganisms that feed on the organic matter in the wastewater. The activated sludge is aerated to provide the bacteria with oxygen, which they need to break down the organic matter. The treated wastewater is then sent to a secondary clarifier, where the activated sludge settles to the bottom. The supernatant from the secondary clarifier is then disinfected and discharged into the environment.I was particularly impressed by the plant's commitmentto sustainability. The facility uses renewable energy sources, such as solar and wind power, to meet its energy needs. The plant also recycles and reuses water whenever possible. For example, the treated wastewater is used to irrigate the plant's grounds.My experience at the wastewater treatment plant was both educational and inspiring. I learned a great deal about the complex and essential role that these facilities play in protecting our environment and public health. I am grateful for the opportunity to have had this experience and I encourage others to learn more about wastewater treatment and the importance of protecting our water resources.中文回答：在我最近的一次社会实践中，我有幸参观了一座污水处理厂。
污水处理厂实习报告总结与体会
污水处理厂实习报告总结与体会英文版Sewage Treatment Plant Internship Report Summary and ReflectionsIntroductionMy internship at the sewage treatment plant provided me with an invaluable opportunity to gain practical knowledge and hands-on experience in environmental engineering. During my tenure, I witnessed the transformation of raw sewage into clean, reusable water, learning about various treatment processes and their associated challenges.Plant OverviewThe sewage treatment plant I interned at employed a combination of primary, secondary, and tertiary treatment methods. The plant received raw sewage from the surrounding areas and processed it through a series of stages to removecontaminants and pathogens, ensuring the effluent met strict environmental standards.Primary TreatmentPrimary treatment involved the removal of larger solid particles and floatable materials from the sewage using screens and settling tanks. This process significantly reduced the load on subsequent treatment stages.Secondary TreatmentThe heart of the plant was its secondary treatment process, which employed biological methods to decompose organic matter. Microorganisms in the activated sludge process consumed the organic matter, converting it into carbon dioxide, water, and biomass. This stage was crucial in reducing the biological oxygen demand (BOD) and chemical oxygen demand (COD) of the sewage.Tertiary TreatmentTertiary treatment further purified the water by removing nutrients, trace organics, and suspended solids. Processes likesand filtration, chlorination, and UV disinfection were used to ensure the final effluent met strict quality standards.Challenges and SolutionsDuring my internship, I encountered several challenges, including equipment malfunctions,Variations in sewage quality, and operational inefficiencies. The plant responded to these challenges by implementing regular maintenance routines, enhancing monitoring systems, and investing in new technologies to improve treatment efficiency.ConclusionMy internship at the sewage treatment plant provided me with a profound understanding of the complexities and nuances of wastewater treatment. It taught me the importance of sustainable engineering practices and the role of innovation in addressing environmental challenges. This experience has not only strengthened my professional skills but also inspired me to contribute to the field of environmental engineering.英文版污水处理厂实习报告总结与体会介绍在污水处理厂的实习为我提供了宝贵的机会，让我获得了环境工程方面的实践知识和动手经验。
污水处理厂英语作文500
污水处理厂英语作文500Sewage Treatment Plants: A Vital Part of Urban Infrastructure.Sewage treatment plants are complex engineering systems that play a critical role in protecting public health and the environment. They collect, treat, and dispose of wastewater generated by households, businesses, and industries. By removing harmful pollutants and pathogens from wastewater, treatment plants prevent the spread of waterborne diseases and safeguard our water resources.The Process of Wastewater Treatment.The sewage treatment process typically involves several stages:Preliminary Treatment: This stage removes large debris, such as rocks, sticks, and trash, from the wastewater.Primary Treatment: In this stage, wastewater issettled in large basins, allowing solid particles and scum to settle to the bottom. The settled solids are then removed as sludge.Secondary Treatment: This stage is designed to remove dissolved and suspended organic matter from the wastewater. It is typically accomplished using biological processes, such as activated sludge or membrane bioreactors.Tertiary Treatment: This optional stage provides additional treatment to remove specific pollutants, such as nutrients or heavy metals.Disinfection: Finally, a disinfectant, such aschlorine or ultraviolet light, is added to the wastewater to kill any remaining pathogens.Types of Sewage Treatment Plants.There are various types of sewage treatment plants, each with its own advantages and disadvantages:Conventional Activated Sludge (CAS): A widely used system that employs activated sludge to remove organic matter in the secondary treatment stage.Membrane Bioreactor (MBR): A compact system that combines activated sludge with membrane filtration, eliminating the need for settling basins.Trickling Filter: A less expensive option that uses a bed of rocks or plastic media to remove organic matter.Sequencing Batch Reactor (SBR): A batch-operated system that simplifies the treatment process and reduces energy consumption.Importance of Sewage Treatment.Sewage treatment plants are essential for protecting public health and the environment. By removing pollutants from wastewater, they prevent the spread of waterborne diseases, such as cholera, typhoid, and dysentery. Theyalso protect water resources from contamination, ensuring a safe water supply for drinking, recreation, and other uses.Furthermore, sewage treatment plants contribute to sustainability by producing renewable energy. The sludge generated during the treatment process can be convertedinto biogas, which can be used to generate electricity or heat.Challenges and Innovations.Sewage treatment plants face various challenges, including:Increasing Population and Urbanization: Population growth and urbanization lead to increased wastewater generation, putting pressure on treatment capacity.Emerging Pollutants: New and emerging pollutants, such as pharmaceuticals and personal care products, pose treatment challenges due to their persistence and toxicity.Climate Change: Climate change impacts, such as droughts and extreme rainfall events, can disrupt treatment operations and increase the risk of overflows.Ongoing innovations are addressing these challenges and improving the efficiency and effectiveness of sewage treatment. These include:Smart Technologies: Sensors and automation systems are being deployed to optimize treatment processes, reduce energy consumption, and prevent overflows.Advanced Membrane Technologies: Membrane-based processes are becoming more efficient and cost-effective, enabling higher-quality treatment and the removal of emerging pollutants.Green Infrastructure: Incorporating green infrastructure, such as rain gardens and constructed wetlands, into treatment systems can reduce runoff and promote natural water filtration.Conclusion.Sewage treatment plants are essential infrastructurefor modern society, protecting public health, the environment, and water resources. As urbanization and climate change continue to pose challenges, ongoing innovation is crucial to ensure the continued effectiveness and efficiency of these vital systems.。
参观废水处理厂英语作文
参观废水处理厂英语作文英文回答：Visiting a wastewater treatment plant was definitely an eye-opening experience for me. I had always been curious about how our wastewater is treated and how it affects the environment. The tour guide explained the whole process to us, from the moment the wastewater enters the plant to when it is discharged back into the environment.One of the things that stood out to me was the smell.It was quite strong and unpleasant, but the guide assured us that it was just part of the process. He explained that the smell comes from the organic matter in the wastewater and the chemicals used to treat it. It was a good reminder of the importance of proper waste management.Another interesting part of the tour was seeing the different stages of treatment. We saw the screens thatfilter out large debris, the settling tanks where solidssettle to the bottom, and the aeration tanks where bacteria break down organic matter. It was fascinating to see how each step played a crucial role in cleaning the water.Overall, the tour gave me a better understanding of the importance of wastewater treatment and the impact it has on the environment. It made me more conscious of the water I use and how I can help reduce pollution. I left the plant with a newfound appreciation for the work that goes into keeping our water clean.中文回答：参观废水处理厂确实让我大开眼界。
污水厂社会实践报告
污水厂社会实践报告英文回答：As an intern at the wastewater treatment plant, I was able to gain firsthand experience in the complex processes involved in treating wastewater and ensuring its safe disposal. One aspect that particularly fascinated me was the role of microorganisms in breaking down organic matter. These tiny organisms play a crucial role in converting harmful pollutants into less harmful substances.The diverse range of technologies employed at the plant left a lasting impression on me. From primary sedimentation to biological treatment and disinfection, I witnessed the intricate interplay of physical, chemical, and biological processes. It was remarkable to observe how each stage contributed to the overall goal of producing clean waterfor reuse or discharge.The opportunity to interact with seasoned professionalsin the field was invaluable. Their insights and expertise provided me with a deeper understanding of the challenges and advancements in wastewater management. I wasparticularly impressed by their dedication to environmental protection and their commitment to ensuring the well-being of the surrounding community.Throughout my internship, I had the privilege of participating in various hands-on activities. These experiences allowed me to apply my classroom knowledge to real-world scenarios. For instance, I assisted incollecting samples for laboratory analysis, monitored treatment processes, and learned about equipment maintenance. The practical aspects of my internship complemented my theoretical understanding and made the learning process more engaging.The social impact of the wastewater treatment plant was equally significant. By effectively treating wastewater, the plant helps to protect public health, improve water quality, and safeguard the environment. The clean water produced is used for irrigation, industrial processes, andeven replenishing natural water bodies. It was inspiring to witness the role that wastewater treatment plays in ensuring a sustainable future.中文回答：作为污水处理厂的实习生，我有幸亲身参与了处理污水和确保其安全排放的复杂流程。
污水厂社会实践报告
污水厂社会实践报告英文回答：Sewage Treatment Plant Field Trip Report。
As part of my environmental science course, I had the opportunity to visit a sewage treatment plant last week. It was an eye-opening experience that gave me a firsthand look at the complex process of wastewater treatment.The plant we visited was a state-of-the-art facility that serves a population of over 100,000 people. The process begins with the collection of wastewater from homes and businesses through a network of underground pipes. The wastewater then enters the treatment plant, where it undergoes a series of physical, chemical, and biological processes to remove contaminants.The first step in the treatment process is screening, which removes large objects like rags and sticks from thewastewater. The wastewater then flows into a grit chamber, where it is agitated to settle out heavier particles like sand and gravel.After screening and grit removal, the wastewater enters the primary sedimentation tank. Here, heavier solids settle to the bottom of the tank, while lighter solids float to the top. The settled solids are removed from the tank and sent to a digester, where they are broken down by bacteria. The floating solids, known as scum, are also removed from the tank and disposed of.The wastewater then flows into the aeration tank, where it is mixed with oxygen and bacteria. The bacteria consume organic matter in the wastewater, converting it into carbon dioxide and water. The aeration process also helps to remove nitrogen from the wastewater.After aeration, the wastewater flows into a secondary sedimentation tank, where the remaining solids settle out. The settled solids are removed from the tank and sent to the digester, while the clarified wastewater flows into adisinfection tank.In the disinfection tank, the wastewater is treated with chlorine or ultraviolet light to kill any remaining bacteria. The disinfected wastewater is then discharged into a receiving body of water, such as a river or stream.The sewage treatment process is essential for protecting public health and the environment. It removes harmful contaminants from wastewater, making it safe to discharge back into the environment.中文回答：污水处理厂社会实践报告。
英语作文废水处理
英语作文废水处理Title: Wastewater Treatment: Protecting Our Environment。
Wastewater treatment is a critical process inpreserving our environment and ensuring public health. With the ever-growing industrialization and urbanization, the issue of wastewater management has become increasingly significant. In this essay, we will delve into the importance of wastewater treatment, its processes, and its impact on the environment.First and foremost, wastewater treatment is essentialfor safeguarding our ecosystems. Wastewater, if left untreated, can contain harmful pollutants and pathogensthat can contaminate water bodies, endangering aquatic life and compromising water quality. By treating wastewater before releasing it into the environment, we can mitigatethe adverse effects on ecosystems and protect biodiversity. Moreover, wastewater treatment plays a crucial role inpreventing the spread of waterborne diseases. Untreated wastewater can harbor various pathogens, including bacteria, viruses, and parasites, posing a serious threat to public health. Through proper treatment processes, such as disinfection and filtration, these harmful microorganisms can be removed, reducing the risk of waterborne illnesses and ensuring safe drinking water for communities.The process of wastewater treatment involves several stages, each designed to remove different types ofpollutants and contaminants. The primary treatment stage involves the physical removal of large solids through processes like screening and sedimentation. This isfollowed by secondary treatment, where biological processes are employed to break down organic matter using microorganisms. Finally, advanced treatment methods, suchas disinfection and filtration, are utilized to remove remaining contaminants and pathogens before the treated water is discharged or reused.In recent years, there has been a growing emphasis on sustainable wastewater treatment practices. Traditionaltreatment methods often consume significant amounts of energy and resources, contributing to environmental degradation and climate change. As a result, there is a push towards adopting more energy-efficient and environmentally friendly technologies, such as anaerobic digestion and membrane bioreactors, which can help reduce the carbon footprint of wastewater treatment plants.Furthermore, wastewater treatment presents opportunities for resource recovery and reuse. The organic matter present in wastewater can be converted into biogas through anaerobic digestion, providing a renewable source of energy. Additionally, treated wastewater, known as reclaimed water, can be used for various non-potable purposes such as irrigation, industrial processes, and groundwater recharge, reducing the demand for freshwater resources and alleviating pressure on water supplies.Despite the significant progress in wastewater treatment technologies, challenges remain. Many regions still lack adequate infrastructure and resources to effectively treat wastewater, leading to pollution andenvironmental degradation. Additionally, emerging contaminants such as pharmaceuticals and microplastics pose new challenges for wastewater treatment systems, requiring innovative solutions and technologies to address.In conclusion, wastewater treatment is vital for protecting our environment, safeguarding public health, and promoting sustainable development. By investing in wastewater treatment infrastructure, adopting innovative technologies, and promoting responsible water management practices, we can ensure a cleaner and healthier future for generations to come.。
污水处理英语作文
污水处理英语作文Title: The Importance of Wastewater TreatmentIn today's world, the issue of wastewater treatment has gained immense significance. With the increasing urbanization and industrialization, the amount of wastewater generated has also escalated, posing a significant threat to our environment and public health.Wastewater treatment is a crucial process that aims to remove pollutants and contaminants from water before it is discharged into rivers, lakes, or the ocean. This process ensures that the water is safe for human use and does not harm the aquatic ecosystem.The importance of wastewater treatment lies in its ability to protect the environment. Untreated wastewater contains harmful chemicals, bacteria, and viruses that can contaminate drinking water sources and harm aquatic life. By effectively treating wastewater, we can reduce the risk of waterborne diseases and protect the integrity of our natural water bodies.Moreover, wastewater treatment also plays a vital role in sustainable development. Treated wastewater can be reused for various purposes, such as irrigation, industrial processes,and even as a source of drinking water after further purification. This reduces the demand for freshwater and helps conserve this precious resource.Additionally, wastewater treatment contributes to energy conservation and greenhouse gas reduction. Some treatment processes produce biogas, which can be used as a renewable energy source. This not only reduces our reliance on fossil fuels but also helps mitigate climate change.In conclusion, wastewater treatment is an essential process that benefits our environment, public health, and sustainable development. It is crucial that we invest in advanced wastewater treatment technologies and ensure that all water bodies are protected from the harmful effects of untreated wastewater.。
污水处理情况报告范文
污水处理情况报告范文英文回答：Wastewater treatment is a crucial aspect of maintaining a clean and sustainable environment. It involves the process of removing contaminants from wastewater before it is released back into the environment. In this report, I will discuss the current situation of wastewater treatment and its impact on the environment.Firstly, it is important to mention that wastewater treatment facilities play a significant role in ensuring the quality of our water sources. These facilities use various methods to treat wastewater, such as physical, chemical, and biological processes. For example, one common method is the use of activated sludge, where microorganisms break down organic matter in the wastewater.Additionally, advanced technologies like membrane filtration and ultraviolet disinfection are beingimplemented to further enhance the treatment process. These technologies help in removing even smaller particles and pathogens from the wastewater, ensuring its safety before being discharged.Furthermore, the treated wastewater can also be reused for various purposes, such as irrigation or industrial processes. This not only conserves water resources but also reduces the strain on freshwater sources. For instance, in my city, the treated wastewater is used for watering parks and gardens, reducing the reliance on freshwater for such purposes.Despite these advancements in wastewater treatment, there are still challenges that need to be addressed. One such challenge is the presence of emerging contaminants, such as pharmaceuticals and personal care products, in the wastewater. These contaminants are not effectively removed by conventional treatment methods and can have detrimental effects on the environment and human health. Efforts are being made to develop new treatment technologies to tackle this issue.In conclusion, wastewater treatment plays a vital role in maintaining a clean and sustainable environment. The use of various treatment methods and technologies ensures the removal of contaminants from wastewater before it is released back into the environment. Additionally, the reuse of treated wastewater helps in conserving water resources. However, challenges such as emerging contaminants still need to be addressed.中文回答：污水处理是保持清洁和可持续环境的关键方面。
污水处理厂调查报告
5、AB法
AB法的中文名称为吸附—生物降解工艺法。方法分为预处理段、 A级和B级。独立运行的污泥回流系统在A级与B级处理系统中 都会存在，因此A级与B级处理系统能够培育出具备使本级污水 净化功能的微生物种群。AB法虽然可以起到低能耗的作用，但 不适合处理浓度低的水质。
6、SBR法
SBR 法，即序批式活性污泥法的工作流程均在同一池内进行， 包括进水、曝气、沉淀、出水。该方法通常会有 3～ 4个池子， 这几个池子构成一个系统，分别进行轮流操作，间歇地运行。
• 1、传统活性泥法
• 传统活性污泥法是指利用活性污泥中的微生物来去除废水中 的有机物和有毒有害物质。其工作原理为，首先，废水和回 流的活性污泥一起进到曝气池先混合均匀后再进行充分地反 应，反应完全后送入二沉池进行分离工序。经过这些步骤后， 分离出来的活性污泥再通过回流系统回到曝气池，而废水也 得到了有效的净化。有机污染物先后进行了吸附和代谢两个 方面的工艺流程，最后成功降解，活性污泥也在这个池子里 成功循环一个生长周期。因此，传统活性污泥法净化废水很 有用，并且对处理净化程度要求较高的污水有着很好的适用
• （2）处理效果稳定，出水水质好。 • （3）基建投资省，运行费用低。 • （4）污泥量少，污泥性质稳定。 • （5）具有一定承受水量、水质冲击负荷的能力。
• （6）占地面积少。
3、A²/O工艺
A²/O 工艺的工作流程分为以下三段，分别是厌氧段、缺氧段和 好氧段。首先，回流的污泥与原污水一起在厌氧段进行生化反 应，在这里实现了微生物对磷进行释放和氨化部分有机物的过 程；接着，脱氮的过程在缺氧段中进行；最后，在好氧段，污 水进到该段进行BOD的处理和磷的吸附的操作。本工艺使用了 厌氧( 缺氧) 、好氧交替进行的操作模式，在很大程度上限制了 丝状菌的繁殖，从而限制了活性污泥的特性和作用；并且污泥 中磷的含量较高，也就说明它能够作为效果非常好的肥料；处 理过程不用投药，只需轻微搅拌两个A段的污水，运行费用低。
污水厂实习报告
污水厂实习报告英文回答：As an intern at the wastewater treatment plant, I was responsible for a variety of tasks, including:Monitoring the plant's operations: This involved checking the flow of wastewater through the plant, as well as the levels of various chemicals in the water. I also had to make sure that the plant was meeting all of its regulatory requirements.Performing laboratory tests: I conducted a variety of laboratory tests on the wastewater, including tests for pH, dissolved oxygen, and suspended solids. These tests helped to ensure that the wastewater was being treated properly and that it was safe to discharge into the environment.Maintaining the plant's equipment: I performed routine maintenance on the plant's equipment, including the pumps,motors, and valves. I also had to troubleshoot any problems that arose with the equipment.Assisting with special projects: I assisted with a variety of special projects at the plant, including a project to upgrade the plant's control system. I also helped to develop a new training program for the plant's staff.My internship at the wastewater treatment plant was a great learning experience. I learned a lot about the process of wastewater treatment, and I gained valuable experience in a variety of areas, including laboratory testing, equipment maintenance, and project management.中文回答：在污水处理厂实习期间，我负责多项任务，包括：监测污水处理厂的运营，这包括检查污水流经污水处理厂的过程，以及水中各种化学物质的含量。
污水处理环境问题英语作文
污水处理环境问题英语作文Title: Addressing the Environmental Challenges of Wastewater TreatmentIntroduction:Wastewater treatment is a critical environmental issue that has significant implications for public health, ecological balance, and sustainable development. In this essay, we will explore the challenges associated with wastewater treatment and discuss potential solutions to mitigate its impact on the environment.Main Body:1. Importance of Wastewater Treatment:Wastewater contains pollutants such as chemicals, heavy metals, and pathogens that can harm human health and the environment.Inadequate wastewater treatment can lead to water pollution, ecosystem degradation, and the spread of waterborne diseases.2. Challenges of Wastewater Treatment:Insufficient infrastructure and funding for wastewater treatment facilities in many regions. Limited technological advancements for removing emerging contaminants from wastewater. The energyintensive nature of conventional wastewater treatment processes.3. Solutions to Improve Wastewater Treatment:Invest in upgrading and expanding wastewater treatment infrastructure to meet growing demands.Promote the use of innovative technologies such as membrane filtration, advanced oxidation, and biological nutrient removal.Implement sustainable practices such as water reuse, energy recovery, and source control to reduce the generation of wastewater.4. Public Awareness and Participation:Educate the public about the importance of proper wastewater management and the impact of untreated sewage on water resources.Encourage community engagement in wastewater treatment initiatives through participatory approaches and public consultations.Conclusion:In conclusion, addressing the environmental challenges of wastewater treatment requires a multifaceted approach involving technological innovations, infrastructure investments, sustainable practices, and public engagement. By working together to improve wastewater treatment processes, we can protect our environment, safeguard public health, and ensure a sustainable future for generations to come.。
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宣化区污水处理厂的调查报告调查时间：2015-2-21调查地点：河北省张家口市宣化区污水处理厂科学处理污水是经济社会发展的迫切要求，也是城镇建设过程中必须面对的现实问题。
近年来，县委、县政府高度重视城镇环境卫生整治工作，将这项工作作为改善城镇人居环境，推进城乡统筹发展、构建和谐社会的重要抓手。
过去的几年，宣化区在污水处理方面做了大量的工作，取得了一些成效。
宣化区污水处理厂及污水管网工程在2001年经省发展计划委员会立项批复。
该项目是国家支持的环境资源保护项目。
2004年经国家发展和改革委员会办公厅批复建设，计划总投资6316万元。
该工程是处理我们的生活、城镇建设的污水的重要环节，近期日处理污水3万m³，远期日处理污水5万m³。
厂址位于宣化区城区东南5公里处，占地65.2亩；同时建设配套一、二级污水管网25.8公里,主要是东沙河及南环线截流干管以及部分旧城区管网。
污水厂自运行以来，运行稳定，现阶段日进水量1.6万吨，COD、NH3-N等各项污染物指标均达到排放标准。
一、污水处理工业流程（1）粗格栅间粗格栅设在进水泵房之前，以去除进厂污水中颗粒较大的杂质，使进水泵安全稳定运行。
其设计流量为3325m3/h，此构筑物内的主要设备有回转式格栅。
（2）进水泵房污水从粗格栅间出来就流进进水泵房，泵房结构简单紧凑，选用污水离心潜水泵，据工作人员说该泵具有不堵塞型流道、效率高能耗低的优点，有效处理污水同时还节约了资源，其设计流量为3325m3/h。
将初步处理后的污水抽入细格栅间。
（3）细格栅间在细格栅间内安装有机械细格栅、螺旋输送压实机等设备，用来处理小颗粒垃圾，将其过滤出来的垃圾装车匀速到指定位置填埋；其中还在里面同时进行细菌的反硝化，产生泡沫状的相互硝化的产物，之后用鼓风机吹起沉淀的颗粒，防止堆积沙子，从而把土和沙子处理掉。
其设计流量为3325m3/h。
（4）旋流沉砂池旋流沉砂池主要设备是砂水分离器，其优点为占地面积小，沉砂效果好，安装使用方便等。
设计流量3325 m3/h沉砂池直径4.2m，水深4m。
（5）计量设备沉砂池后有许多仪表，在沉砂池后设置电磁流量计，可以对进厂污水流量进行连续监测，同时设置水质监测仪表，如PH计、温度计、SS计，把测量信号传至中央控制室，防止任何纰漏的出现。
（6）厌氧选择池露天厌氧选择池内有缓慢移动的潜水搅拌器，回流污泥与污水在池中接触、混合反应，可以达到部分除磷作用，并改善活性污泥的性质，还能分离喜氧细菌和厌氧细菌。
设计流量1250m3/h，池有效容积3925 m3/h。
（7）奥贝尔氧化沟奥贝尔氧化沟，它为椭圆形钢筋混凝土池，分为2座。
每池分为三条环形沟道，污水依次进入外沟道、中沟道及内沟道，最后经中心岛的出水并排入沉淀池配水井。
设计流量1250m3/h，每座有效容积11000m3，混合液浓度4.5 g/l，设计水深4.2m，水力停留时间17.6h。
并且奥贝尔氧化沟是整个处理系统的核心部分，其主要功能是使培养、驯化后的活性污泥降解、吸附、凝聚有机物，并通过细菌的作用使悬浮颗粒和溶解颗粒易于沉淀，使出水中的有机物含量降低。
每座氧化沟安装有转碟曝气盘10套，外沟道的溶解氧控制在0.5mg/l，在此同时进行氧化、硝化及反硝化。
中间沟道及外沟道溶解氧分别控制在1mg/l和2mg/l，对污水中的有机物进一步氧化，保证出水中的有机物含量达到设计要求。
（8）沉淀池氧化沟处理后的水会排入沉淀池，沉淀池采用辐流式沉淀池，中心进水，周边出水，直径D ＝38m，共2座。
设集配水井二座，经过沉淀后的污水进入接触池。
每座沉淀池设周边驱动的全桥式刮吸泥机，沉淀池泥至回流及剩余污泥泵站。
设计流量1813m3/h，最大表面负荷0.8 m3/ m2.h，单池池边水深4m，停留时间4.3h.（9）接触池由于要保证出水的清洁程度达标所以需进行消毒处理，因此设接触池1座：1813 m3/h流量，接触时间30min,有效接触容积1056 m3，有效水深4m。
本工程采用二氧化氯消毒方式，负责污水二级出水的接触池加氯。
污水的加氯投加点在接触池前端。
设计回流1813 m3/h，平均加氯量8 mg/l，单台有效产氯量7.5kg/h。
（10）回流及剩余污泥泵房由于部分水会沉淀出一些污泥，所以回流污泥泵采用潜水轴流泵，剩余污泥的提升采用潜水离心泵，土建结构简单紧凑。
回流污泥量1250 m3/h，污泥含水率99.1%。
（11）加氯间本工程采用二氧化氯消毒方式，负责污水二级出水的接触池加氯。
污水的加氯投加点在接触池前端。
设计回流1813 m3/h，平均加氯量8 mg/l，单台有效产氯量7.5kg/h。
二、污水处理的意义随着的发展,城市水资源短缺的压力越来越大,追究城市水危机的根本原因,人们越来越认识到,是水的社会循环超出了水的自然循环可承载的范围.因此,只有充分尊重水的自然运动规律,合理地使用水资源,使上游地区的用水循环不影响下游水域的水体功能、社会循环不损害自然循环的客观规律,从而维系或恢复城市乃至流域的良好水环境,才是水资源可持续利用的有效途径.这就要求我们从“取水－输水－用户－排放”的单向开放型的用水模式转变为“节制地取水－输水－用户－再生水”的反馈式循环流程,提高水的利用效率.实现这一重大用水模式的转变,加强污水再生利用是关键.随着科学技术的进步,城市污水已不再是废水,而是一种宝贵的资源.既然是一种资源,就要最大程度的利用.提高城市污水的再生利用率,一是可以减少污染物排放,二是节约了有限的水资源.水利部水资源司副司长程晓冰在由清华大学和中国水网主办的“2010城市水业战略论坛”上发表讲话,他指出,我国水资源短缺,城市缺水问题突出,污水处理回用是战略选择,意义重大.城市污水处理回用在替代清洁水源的同时减少了污水排放量,降低了城市排污负荷,具有水量稳定、输水距离短、制水成本低等特点,可以提供安全可靠的替代水源,是解决城市缺水问题的战略选择.推进污水处理回用工作充分体现了科学发展观以人为本的要求,反映了广大人民群众的迫切愿望,是推进城市化建设的客观需要,是实现水资源合理配置、科学保护、循环利用的重要手段,对建设资源节约型、环境友好型社会意义重大,对我国经济又好又快发展意义重大.三、存在问题（一）环境卫生基础设施建设比较薄弱。
城市管网向农村延伸刚刚起步，宣化区下水道管网尚未形成。
（二）本地城镇污水处理系统还处于发展阶段。
（三）人们环保意识差，不懂得资源保护与可持续性发展的关系，缺乏遏制环境污染的主观能动性，对环境“脏、乱、差”现象习以为常，熟视无睹。
所以仍有自然排放的现象存在。
四、存在问题的原因经过我的研究与对工作人员的询问我们认为造成城镇污水无害化处理难的原因是多方面的，主要有：（一）重发展，轻环境。
先发展后治理观念一些企业中仍是主导观念，在搞经济建设、抓工业发展的过程中，污水处理问题相对滞后。
（二）宣传不到位。
政府和社会的宣传力度还不到位，人们意识不到污水处理的难度，水资源浪费严重。
（三）监管力度有纰漏。
有关部门的监察还有疏漏，造成有人趁机钻空子，造成水污染。
（四）城镇污水处理设施的建设资金缺口较大。
城镇污水处理设施建设属于公益性项目，但公共财政资金投入却十分有限，导致污水处理厂设备落后，处理效率低。
（五）相应的处罚法律法规不够完善。
处罚力度不够严导致很多企业无视法律法规，处罚过后依然我行我素，污染环境问题不能完全解决。
（六）缺乏相应的检举方法和奖励措施，公民参与企业污染举报积极性不高。
五、提出建议针对上述问题我们提出一些建议：1.强制要求企业设立环境监测部门，对本企业对环境污染进行检测和评估。
2.加大政府资金投入，进一步完善符合国家标准的生活污水处理场所。
3.学习国外先进污水处理技术，引进国外先进污水处理设备，提高污水无害化处理效率。
4.搭建垃圾污水处理设施，建设多元融资平台以解决污水处理厂资金问题。
5.建立完善环境卫生保洁的法律法规和惩处措施，做到政府管理有法可依，企业生产心有所畏。
6.社会和政府加强对公民节水和环保的教育宣传，节水从每一位社会公民做起以达到最好的节水效果。
7.政府设立相应的举报部门和奖赏措施，提高公民参与社会监督的积极性。
8.试行对城市居民生活下水排放收费措施，以此增强居民节水意识。
六、污水处理调查感想通过这次调查，我学到了很多关于自己专业的知识，而且好多都是课堂上学不到的。
我对自己的专业有了新的认识和理解。
对自己将来的工作方向有了初步的了解。
在这次调查中我遇到很多困难，但是我都努力克服了。
在整个过程中我学会了怎么与人交流和沟通，也学会了怎么独立解决问题。
在这次调查中，我了解到污水处理是能源密集型的综合技术。
一段时期以来,能耗大、运行费用高一定程度上阻碍了我国城市污水处理厂的建设,建成的一些处理厂也因能耗原因处于停产和半停产状态。
在今后相当长的一段时期内,能耗问题将成为城市污水处理的瓶颈。
能否解决耗污水厂的能耗问题，合理进行能源分配，已经成为决定污水处理厂运行效益好坏的关键因素。
能耗是否较低，也是未来新的污水处理厂可行性分析的决定性因素，开发能效较高的污水处理技术，合理设计及运行污水处理厂，必将是未来污水处理厂设计和运行的必由之路。
为此，实施污水处理厂的创新管理模式不失为一条切实可行的道路。
水是不可缺少的一部分，是人类生存的必要条件。
我国是水资源短缺的国家，地区缺水问题尤为突出。
随着经济发展和城镇化进程的加快，水污染问题也越来越严重。
切实加强和改进城镇供水、节水和水污染防治工作，促进经济社会的可持续发展，维持生态平衡，已成为社会发展的一项重要举措，也是每个公民应尽的义务，作为一名大学学生，我们更应该从我们自身做起，从点滴做起。
Survey Xuanhua District sewage treatment plantSurvey Time: 2015-2-21Survey Location: Zhangjiakou, Hebei Xuanhua District Wastewater Treatment PlantScience sewage treatment is an urgent requirement of economic and social development, but also practical problems of urban construction process must face. In recent years, the county government attaches great importance to urban environmental remediation work, will this work for the improvement of urban living environment, promoting urban and rural development, an important starting point to build a harmonious society. Over the past few years, Xuanhua District sewage treatment has done a lot of work and achieved some success.Xuanhua District sewage treatment plant and sewer network project in 2001 by the Provincial Development Planning Commission approved the project. The project is environmental conservation projects supported by the state. 2004 by the Office of the National Development and Reform Commission approved the construction, plans a total investment of 63.16 million yuan. The project is to deal with our lives, an important part of the sewage of towns, the recent sewage treatment 30000 m³, long-term daily treatment 50000 m³.Site is located 5 km southeast of the city of Xuanhua District, covering 65.2 acres; at the same time supporting the construction of one or two 25.8 km sewage pipe network, mainly East River and KSL intercepting pipes and part of the old city pipe network. Since the wastewater treatment plant self-running, stable operation, 16,000 tons of water into the stage day, the pollutant index COD, NH3-N and so have to meet emission standards.A sewage treatment industrial processes(1) between the coarse gridCoarse grid in the water before pumping stations, sewage into the plant to remove larger particles of impurities, safe and stable operation of the pump intake. The design flow is 3325m3 / h, themain equipment within this structure there are rotary grill.(2) water pumping stationAdvantages of sewage from between the coarse grid to flow out into the water pumping stations, pumping stations simple and compact structure, the selection of sewage submersible centrifugal pumps, according to the staff said that the pump has not plug-type runner, low efficiency and high energy consumption, while the effective treatment of sewage also saves resources, and its design flow of 3325m3 / h. After the initial treatment of sewage pumped into the fine grid between. (3) between the fine gridFine grid in the room equipped with a mechanical fine grid, auger compactors and other equipment used to handle small particles of garbage, which was filtered out of the garbage landfill loading uniform to a specified location; which is still inside the bacteria at the same time denitrification, nitrification produce mutual foam product, followed by precipitation of particles blowing blower to prevent the accumulation of sand, so to dispose of the soil and sand. The design flow is 3325m3 / h.(4) cyclone grit chamberThe main device is a cyclone grit chamber sand-water separator, the advantage of small size, grit effective, easy to install and so on. Design Flow 3325 m3 / h grit chamber diameter 4.2m, depth of 4m.(5) metering equipmentThere are many instruments after grit chamber, an electromagnetic flowmeter after grit chamber, sewage flow into the plant can be continuously monitored, and set water quality monitoring instruments, such as PH meter, thermometer, SS meter, the signal transmitted to the central control measure room, to prevent any flaws in.(6) Select the anaerobic pondAnaerobic outdoor pool has a slow-moving selection submersible mixer, return sludge and sewage tank in contact with mixed reactions, can achieve part of the role of phosphorus, and improve the properties of the activated sludge, but also the separation of both aerobic and anaerobic bacteria bacteria. Design flow 1250m3 / h, pool effective volume 3925 m3 / h.(7) Orbal oxidation ditchAubert oxidation ditch, it is elliptical reinforced concrete pool, divided into two. Each pool is divided into three annular channel, turn sewage into the outer channel, the channel and inside the channel, and finally by the center of the island and into the sedimentation tank with water wells. Design flow 1250m3 / h, every seat effective volume 11000m3, the mixture concentration 4.5 g / l, the design depth of 4.2m, HRT 17.6h.Aubert and oxidation ditch is a core part of the entire processing system, its main function is to make the cultivation of domesticated activated sludge degradation, adsorption, aggregation of organic matter, and through the action of bacteria so that the suspended particles and dissolved particles tend to precipitate, resorted to water The organic content is reduced.Each seat is installed oxidation ditch aeration plate spinning disc 10 sets, outside the channel dissolved oxygen control in 0.5mg / l, in the meantime oxidation, nitrification and denitrification. The intermediate channel and an outer channel dissolved oxygen controlled at 1mg / l and 2mg / l, of organic matter in sewage further oxidation, to ensure the organic content of the effluent to meet the design requirements.(8) sedimentationWater will be discharged into the oxidation ditch treatment after sedimentation tanks, sedimentation tanks using radial flow sedimentation tank, water center, surrounded by water, the diameter D = 38m, a total of two. Set with wells located two blocks, through contact with sewage into the pool after precipitation. Each seat settling ponds located around the drive full-bridge scraping suction machine, sedimentation tank sludge and sludge pumping station to reflux. Design flow 1813m3 / h, maximum surface load 0.8 m3 / m2.h, single-cell pool depth of 4m, the residence time of 4.3h.(9) contact tankTo ensure the cleanliness of the water due to the standards required to be disinfected so, it set up contact with the cell holder 1: 1813 m3 / h flow rate, contact time 30min, effective contact volume 1056 m3, the effective depth of 4m. This project uses chlorine dioxide disinfection, contact tank responsible for wastewater effluent chlorination. Chlorine dosing point sewage pond in the front contact. Design reflux 1813 m3 / h, the average amount of chlorine 8 mg / l, a single effective yield chlorine 7.5kg / h.(10) reflux and sludge pumping stationAs part of the water will precipitate some sludge, so the return sludge pump submersible pump, to enhance the use of sludge submersible centrifugal pumps, construction simple and compact structure. Return sludge volume 1250 m3 / h, the sludge moisture content 99.1%.(11) between chlorinationThis project uses chlorine dioxide disinfection, contact tank responsible for wastewater effluent chlorination. Chlorine dosing point sewage pond in the front contact. Design reflux 1813 m3 / h, the average amount of chlorine 8 mg / l, a single effective yield chlorine 7.5kg / h.Second, the significance of the sewage treatmentWith the development of urban water shortages increasing pressure to pursue the root causes of urban water crisis, it is increasingly recognized that community water cycle beyond the natural cycle of water can carry a range. Therefore, only full respect for the natural movement of water, the rational use of water resources, making water recycling upstream region does not affect the function of water downstream waters, without prejudice to the objective laws of social cycle natural circulation, thereby maintaining or restoring good water environment and the watershed of the city, The effective way is the sustainable use of water resources which requires us from "water - water discharge - - user" into open water unidirectional mode is "sparingly water - water - user - recycled water" feedback circulation processes, improve water use efficiency. achieve this major shift patterns of water use and enhance wastewater reuse is the key. With the advancement of science and technology, urban sewage is no longer a waste, but a valuable resource. Since is a resource, it is necessary to maximize the utilization. improve urban sewage recycling rate, one can reduce pollutant emissions, and second, to save the limited water resources. Water Division of Water Resources Deputy Director Xiao-ice from Tsinghua Speaking on the university and China Water Network's "2010 Urban Water Sector Strategy Forum", he pointed out that the shortage of water resources in China, urban water shortages highlight, wastewater treatment and reuse is a strategic choice, significant urban wastewater treatment and reuse in Alternative sources of clean water while reducing emissions, reducing the city sewage load, with water stability, water a short distance, low cost of water can provide a safe and reliable alternative water sources, is a strategic choice to solve the city's water shortage Propulsion wastewater treatment and reuse work fully reflects the scientific concept of development is about people's demands, reflecting the urgentdesire of the masses, is to promote the urbanization objective need, is an important means to achieve rational allocation of water, scientific conservation, recycling for building a resource-saving and environment-friendly society of great significance to China's fast economic growth is significant.Third, there is a problem(A) environmental health infrastructure is weak. Distribution network extends to rural areas has just started, Xuanhua District sewer pipe network has not yet formed.(B) the local municipal wastewater treatment system is still in the development stage.(C) poor awareness of environmental protection, do not know the relationship between conservation and sustainable development of resources, lack of initiative to curb environmental pollution to the environment "dirty, chaotic, and poor" phenomenon for granted, turn a blind eye. Therefore, the existence of the phenomenon are still natural emissions.Fourth, the problem of reasonAfter my research and ask our staff to blame for urban sewage treatment and disposal difficult for many reasons, including:(A) re-development, light environment. After the first few companies in the development of the concept of governance is still the dominant idea in economic construction, caught in the process of industrial development, sewage treatment is lagging behind.(B) the publicity is not in place. Propaganda of the government and the society is not in place, people are not aware of the difficulty of sewage treatment, water waste.(C) supervision flawed. There are omissions surveillance departments, resulting in people taking advantage of a loophole, causing water pollution.Construction funds (four) of urban sewage treatment facilities gap larger. Urban sewage treatment facilities are public projects, public financial investment is very limited, leading to the sewage treatment plant equipment behind, low processing efficiency.(E) the appropriate punishment laws is inadequate. Strict punishment is not enough cause many companies ignore the law and regulations, after the punishment is still its own way, can not completely solve the problem of environmental pollution.(Vi) lack of appropriate methods and incentives to report, citizen participation enterprise reporting pollution are not enthusiastic.Fifth, make recommendationsTo solve these problems we propose some suggestions:1. force businesses to set up environmental monitoring department of the enterprise for the detection and assessment of environmental pollution.2. increase government funding to further improve the sewage disposal sites in line with national standards.3. Learn the advanced wastewater treatment technology, the introduction of foreign advanced sewage treatment equipment to improve the efficiency of wastewater treatment and disposal.4. to build waste water treatment facilities, the construction of multi-financing platform to solve the financial problems of sewage treatment plants.5. Establish and improve environmental sanitation in the laws, regulations and punishment measures, so that government law, the production heart and fear.6. Government to strengthen the social and civic education and promotion of water-saving andenvironmentally friendly, water-saving society from every citizen to start saving in order to achieve the best results.7. The government set up the appropriate reporting department and reward measures to increase citizen participation in social monitoring initiative.8. Trial of urban residents living water emissions charges measures in order to enhance awareness of water conservation residents.Six sewage treatment survey feelingsThrough this investigation, I learned a lot about their own professional knowledge, but many are less than the classroom. I myself have a new professional knowledge and understanding. The future direction of their work have a preliminary understanding. In this survey, I encountered many difficulties, but I try to overcome. Throughout the process, I learned how to communicate with people and communication, but also learned how to solve problems independently.In this investigation, I learned that sewage treatment is a comprehensive technical energy intensive. Over the years, energy consumption, operating costs hindered the construction of urban sewage treatment plants to some extent high, built of some treatment plants is also due to the reason in the cut consumption and semi-shutdown state. In the future for a long period of time, energy issues will become the bottleneck of urban sewage treatment. Can solve the energy consumption of the wastewater treatment plant problems, make reasonable energy distribution, sewage treatment plant has been decided to run benefit the quality of the key factors. Energy consumption is low, the decisive factor is the future of a new sewage treatment plant feasibility analysis, develop a high energy efficiency of sewage treatment technology, reasonable design and operation of sewage treatment plants, sewage treatment plants is bound to be the future design and operation of the only way. To this end, the implementation of the sewage treatment plant management model innovation may well be a feasible way.Water is an indispensable part, is a necessary condition for human survival. Ours is a shortage of water resources at national, regional water shortage is particularly prominent. With the rapid economic development and urbanization, and water pollution problems are more serious. Strengthen and improve urban water supply, water conservation and water pollution control work to promote sustainable economic and social development, to maintain ecological balance, has become an important measure of social development, but also the obligation of every citizen, as a university students, we should start from ourselves, from scratch.。