《英语环境保护》PPT课件
合集下载
英语演讲环境保护英语PPT
2023
Environment Protection
1、Intruduce
To develop the economy, but also protect the environment, which can balance the two? It can be said that there exist the contradictions is not only a short-term problem also a long-term problem.On one hand ,human must develop the economic,but the economic development is limited by the environmental protection on the other hand when people pay more and more attention to it. We must look at the issue dialectically.
After 60 years, the stone statue of Germany has been thoroughly damaged by acid rain.
Question 3 ——Greenhouse effect
There is no doubt that global warming is very serious consequences, such as glaciers melt, sea level rise, desertification, to the ecological system and the serious impact on agricultural production.
Environment Protection
1、Intruduce
To develop the economy, but also protect the environment, which can balance the two? It can be said that there exist the contradictions is not only a short-term problem also a long-term problem.On one hand ,human must develop the economic,but the economic development is limited by the environmental protection on the other hand when people pay more and more attention to it. We must look at the issue dialectically.
After 60 years, the stone statue of Germany has been thoroughly damaged by acid rain.
Question 3 ——Greenhouse effect
There is no doubt that global warming is very serious consequences, such as glaciers melt, sea level rise, desertification, to the ecological system and the serious impact on agricultural production.
环境保护(英文版)ppt课件
◆ Sulfide and nitrogen oxides(硫化物和氮氧化合物) into the atmosphere worldwide up to 30 million tons each tion
◆ About 40% of the world’s rivers are seriously polluted. ◆ Freshwater（淡水）resources are becoming exhausted.
环境问题 触目惊心 保护环境 人人有责
Thank you !
NO.3 Loss of biodiversity
◆ Global extinction of 50,000 species / year, 140 / day on average.
NO.4 The spread of acid rain
◆ pH <5.6 referred as acid rain. ◆ Main hazards: Water and soil acidification(酸化), plant and animal death, corrosion(腐蚀) buildings, railways and bridges and other facilities.
worldstoptenenvironmentalproblems1globalwarming全球变暖2ozonelayerdepletion臭氧层破坏4thespreadacidrain酸雨蔓延5forestdropped森林锐减7airpollution大气污染8waterpollution水体污染9marinepollution海洋污染10crossboundarymovementspoisonouswastes毒性废弃物越境转移no1globalwarminggraduallyincreasinggreenhouseeffectearthstemperaturerising
◆ About 40% of the world’s rivers are seriously polluted. ◆ Freshwater（淡水）resources are becoming exhausted.
环境问题 触目惊心 保护环境 人人有责
Thank you !
NO.3 Loss of biodiversity
◆ Global extinction of 50,000 species / year, 140 / day on average.
NO.4 The spread of acid rain
◆ pH <5.6 referred as acid rain. ◆ Main hazards: Water and soil acidification(酸化), plant and animal death, corrosion(腐蚀) buildings, railways and bridges and other facilities.
worldstoptenenvironmentalproblems1globalwarming全球变暖2ozonelayerdepletion臭氧层破坏4thespreadacidrain酸雨蔓延5forestdropped森林锐减7airpollution大气污染8waterpollution水体污染9marinepollution海洋污染10crossboundarymovementspoisonouswastes毒性废弃物越境转移no1globalwarminggraduallyincreasinggreenhouseeffectearthstemperaturerising
主题7 人与自然——环境保护+课件+2025年中考英语人教版一轮专题复习
help people in need.
8. 所以，我们一起行动，就能影响他人，创造一个更美好的未来！
[make a difference （to） ]
So together, our actions can future！
make a difference and lead to a better
forks.
Para. 3 Suggestions
内容结构
What does the writer call on everyone to do？
① To have home－made meals.
② To reduce the use of plastic things.
③ To reuse the waste.
6. 这个镇子上的每个人都应该参与这条河流的清理工作。（play a part in...） Everyone in this town should play a part in cleaning up the river .
仿写 我们应该为保持学校干净整洁出一份力。 We should play a part in keeping our school clean and tidy .
时态 一般现在时
（ 三 ）小试身手
1. 构思提纲·请你仿照范文结构完成自己的写作提纲。
Protect the Environment Para. 1 Problems
内容结构
What environmental problems do you find？ Noise pollution, litter pollution and air pollution.
help people in need.
8. 所以，我们一起行动，就能影响他人，创造一个更美好的未来！
[make a difference （to） ]
So together, our actions can future！
make a difference and lead to a better
forks.
Para. 3 Suggestions
内容结构
What does the writer call on everyone to do？
① To have home－made meals.
② To reduce the use of plastic things.
③ To reuse the waste.
6. 这个镇子上的每个人都应该参与这条河流的清理工作。（play a part in...） Everyone in this town should play a part in cleaning up the river .
仿写 我们应该为保持学校干净整洁出一份力。 We should play a part in keeping our school clean and tidy .
时态 一般现在时
（ 三 ）小试身手
1. 构思提纲·请你仿照范文结构完成自己的写作提纲。
Protect the Environment Para. 1 Problems
内容结构
What environmental problems do you find？ Noise pollution, litter pollution and air pollution.
关于保护环境英语ppt
（202X海南卷）图14示意的农业区是新疆重要的农业生产基地 之一。1990年至2010年，该农业区耕地面积不断扩大。分析该 农业区耕地面积扩大带来的环境问题，并提出应对措施。
分析该农业区耕地面积扩大带来的环境问题， 并提出应对措施。
环境问题： 1.（该区域地处内陆）气候干旱，耕地面积增加会加大 灌溉用水量，（河流流量大减）加剧水资源短缺；（2 分） 2.入湖水量减少，湿地萎缩；（2分） 3.（灌溉用水量加大，导致）地下水位上升，引起土壤 次生盐渍化。（2分）
节约和提高 能源利用效 率，开发新 能源；发展 洁净煤技术； 控制机动车 尾气污染； 植树造林， 加强绿化等
环境污 染问题
形成原因
固体废 弃物污 染
人类在日常生 活中排放的生 活垃圾和工业 等生产活动排 出的生产垃圾
噪声污 染
交通运输、工 业生产、建筑 施工、商业活 动、娱乐等
造成的危害 防治措施
应对措施： 1.限制开荒面积； 2.节约水资源（提高水资源利用效率）； 3.发展节水型农业。 （答对期中1项得2分，答对其中2项得4分，其他合理答
二、资源问题与资源保护利用
自然资源短缺的原因及对策
分析任何一种自然资源短缺的原因都必须从自然与 人为两大方面入手。如分析水资源短缺就是从水资 源的时空分布不均等自然原因以及人类自身发展的 要求和利用的不合理性等人为原因入手加以分析的。 内容如下：
【答案】 原因：
1.经济增长严重依赖（地下）水资源（2分）， 2.地下水水位下降导致生态环境恶化。（2分）
主要措施： 1.节约用水（提高水资源的利益效率）；（2分） 2.发展节水型经济（调整产业结构）； 3.跨流域调水，增长水资源供给。（2分） （其他合理答案可酌情评分，但本题部分总分不超过6分）
《环境保护英语》课件
Definition
Environmental Protection is crucial for safeguarding the health of ecosystems, maintaining biodiversity, and ensuring sustainable development It also plays a vital role in addressing the impact of human activities on the environment and mitigating the negative sequences of climate change
Strengthening noise management, optimizing urban planning, promoting low-noise equipment, etc. are effective measures to control noise pollution.
Ecological protection and sustainable development
PPT courseware for Environmental Protection Englis
2023-2026
ONE
KEEP VIEW
REPORTING
目录
CATALOGUE
Overview of Environmental ProtectionEnvironmental pollution and controlEcological protection and sustainable developmentEnvironmental laws, regulations, and policiesPublic participation and environmental education
Environmental Protection is crucial for safeguarding the health of ecosystems, maintaining biodiversity, and ensuring sustainable development It also plays a vital role in addressing the impact of human activities on the environment and mitigating the negative sequences of climate change
Strengthening noise management, optimizing urban planning, promoting low-noise equipment, etc. are effective measures to control noise pollution.
Ecological protection and sustainable development
PPT courseware for Environmental Protection Englis
2023-2026
ONE
KEEP VIEW
REPORTING
目录
CATALOGUE
Overview of Environmental ProtectionEnvironmental pollution and controlEcological protection and sustainable developmentEnvironmental laws, regulations, and policiesPublic participation and environmental education
英语高频话题和热点话题写作课件 话题2 环境保护
energy/
resource...
行
Green travel
词汇头脑风暴
Day 1
基础句
教材好句记背
Day 2
角度 1 如何保护环境 1. We can save water by taking shorter showers. [译林牛津八(下)Unit 8
P107] 2. Recycling(再循环) is also a good way to reduce(减少) pollution. [译林 牛津八(下)Unit 8 P119] 3. You can also use reusable bags instead of plastic(塑料的) bags.[人教 九(全)Unit 13 P100]
基础句
角度 3 保护环境的意义 14. Nature is our greatest treasure.[译林牛津八(下)Unit 8 P109] 15. If we don't protect the environment well, we'll be punished. 16. It's everyone's duty to love and protect the environment. 17. If we follow these suggestions, the enviroment will be better and better. 18. We cannot hope for rapid change, but let's take these simple steps today so that we will save the world for our grandsons and granddaughters tomorrow.,
译林版英语6A Unit 7《Protect the Earth》课件
中小学课件站
I use newspapers to make a snail.
I use I use newspapers newspapers toto make make _______. a snail.
中小学课件站
中小学课件站
Step4 Try to say
Water is…. We drink … In many places… We should not… We should …
中小学课件站
要求： 1.四人小组选取一幅图片进行讨论 2.汇报方式可以是：组员一起汇报 接龙汇报 1 男生女生分角色汇报
中小学课件站
Save water
SaБайду номын сангаасe energy
Unit 7 Protect the Earth Don’t use too much plsatic
中小学课件站
Save trees
Review the story
我能熟练地用“should、should not和use…to…”进行日常交 流☆☆☆ 我能用“should、should not和use…to…”来谈论保护地球 ☆☆ 我仍然需要好好努力☆
中小学课件站
要求：选择一个主题写一张海报。
Topic1:Protect the Earth Topic2:Protect the eyes Key words:
Topic3:Protect the …
do eye exercises use your eyes too long read books in cars or on the bed
中小学课件站
Protect the ______ To protect the ______, we should _____________________________ _____________________________ ______. To protect the ______, we should not___________________________ _____________________________ _______. We should love and protect our ______.
I use newspapers to make a snail.
I use I use newspapers newspapers toto make make _______. a snail.
中小学课件站
中小学课件站
Step4 Try to say
Water is…. We drink … In many places… We should not… We should …
中小学课件站
要求： 1.四人小组选取一幅图片进行讨论 2.汇报方式可以是：组员一起汇报 接龙汇报 1 男生女生分角色汇报
中小学课件站
Save water
SaБайду номын сангаасe energy
Unit 7 Protect the Earth Don’t use too much plsatic
中小学课件站
Save trees
Review the story
我能熟练地用“should、should not和use…to…”进行日常交 流☆☆☆ 我能用“should、should not和use…to…”来谈论保护地球 ☆☆ 我仍然需要好好努力☆
中小学课件站
要求：选择一个主题写一张海报。
Topic1:Protect the Earth Topic2:Protect the eyes Key words:
Topic3:Protect the …
do eye exercises use your eyes too long read books in cars or on the bed
中小学课件站
Protect the ______ To protect the ______, we should _____________________________ _____________________________ ______. To protect the ______, we should not___________________________ _____________________________ _______. We should love and protect our ______.
环境保护-中考英语写作指导课件(共12张PPT)
环境保护-2020届中考英语写作指导课 件(共1 2张PPT )
环境保护-2020届中考英语写作指导课 件(共1 2张PPT )
[结尾句] 1. None of us likes pollution. 2. I believe we can make our earth a better
place to live. 3. I believe our life will become better and
提示：1. 减少使用塑料制品； 2. 绿色出行； 3. 治理垃圾； 4. …… (至少补充一种方法) 要求：1. 内容须包括所有提示要点，可适当
发挥； 2. 逻辑合理，语言得体； 3. 词数：90左右。短文的开头和结尾
已给出，不计入总词数。 参考词汇：垃圾桶 rubbish bin；分类 sort
【话题解读】 环境保护是一个热门话题。与环保相关的书面表达通常是先列举环境中出现的某一 现象，然后要求考生就该现象进行描述，提出建议，阐述自己的观点。具体来讲， 此话题主要会从以下四方面进行设题：(1)记叙你参加过的一次环保活动；(2)谈论保 护环境的重要性；(3)对保护环境的措施和建议；(4)对环境污染的看法并提岀保护环 境的措施。
Let’s do something to protect the environment! Hello, everyone! Today there is more and more pollution and the environment is becoming worse and worse. So we have to do something to protect the environment. Here are some ways. __________________________________________________________________________ ________ I believe if everyone makes an effort, the environment will become better and better.
环境保护-2020届中考英语写作指导课 件(共1 2张PPT )
[结尾句] 1. None of us likes pollution. 2. I believe we can make our earth a better
place to live. 3. I believe our life will become better and
提示：1. 减少使用塑料制品； 2. 绿色出行； 3. 治理垃圾； 4. …… (至少补充一种方法) 要求：1. 内容须包括所有提示要点，可适当
发挥； 2. 逻辑合理，语言得体； 3. 词数：90左右。短文的开头和结尾
已给出，不计入总词数。 参考词汇：垃圾桶 rubbish bin；分类 sort
【话题解读】 环境保护是一个热门话题。与环保相关的书面表达通常是先列举环境中出现的某一 现象，然后要求考生就该现象进行描述，提出建议，阐述自己的观点。具体来讲， 此话题主要会从以下四方面进行设题：(1)记叙你参加过的一次环保活动；(2)谈论保 护环境的重要性；(3)对保护环境的措施和建议；(4)对环境污染的看法并提岀保护环 境的措施。
Let’s do something to protect the environment! Hello, everyone! Today there is more and more pollution and the environment is becoming worse and worse. So we have to do something to protect the environment. Here are some ways. __________________________________________________________________________ ________ I believe if everyone makes an effort, the environment will become better and better.
环境保护PPT(Environment)
• ecosystem services: Rain forests play an important
role in maintaining biological diversity, modulating precipitation, infiltration and flooding, increasing scientific knowledge and in the spiritual well-being of humans. Such ecosystem services are of use to humans without the need for any modification or management of the forest yourself.
Human destruction of
rainforest
This fire was made by people who lived there!
Thick smoke hang over the forest Nhomakorabea Cause
• Corruption of government institutions • The inequitable distribution of wealth and
power • Population growth • Overpopulation • Urbanization • Globalization is often viewed as another
root cause of deforestation
This is the road in forest
and the tropical rainforest
contains the uncountable kinds of species.
role in maintaining biological diversity, modulating precipitation, infiltration and flooding, increasing scientific knowledge and in the spiritual well-being of humans. Such ecosystem services are of use to humans without the need for any modification or management of the forest yourself.
Human destruction of
rainforest
This fire was made by people who lived there!
Thick smoke hang over the forest Nhomakorabea Cause
• Corruption of government institutions • The inequitable distribution of wealth and
power • Population growth • Overpopulation • Urbanization • Globalization is often viewed as another
root cause of deforestation
This is the road in forest
and the tropical rainforest
contains the uncountable kinds of species.
《英语环境污染》课件
Current Situation of English Environmental Pollution
#O2
#2022
Air pollution
High levels of particulate matter
Particle matter (PM) pollution is a significant problem in England, with PM2.5 and PM10 concentrations of exceeding World Health Organization (WHO) guidelines
The Impact of English Environmental Pollution
04
The impact on human health
Respiratory diseases
Air pollution in England has been linked to increased cases of respiratory diseases such as asthma, bronchitis, and emphysema
Agricultural chemicals
The use of agricultural chemicals, such as pests and herbicides, can lead to soil pollution in England These chemicals can persist in the soil for long periods and have negative impacts on soil health and biodiversity
目录
O1
#O2
#2022
Air pollution
High levels of particulate matter
Particle matter (PM) pollution is a significant problem in England, with PM2.5 and PM10 concentrations of exceeding World Health Organization (WHO) guidelines
The Impact of English Environmental Pollution
04
The impact on human health
Respiratory diseases
Air pollution in England has been linked to increased cases of respiratory diseases such as asthma, bronchitis, and emphysema
Agricultural chemicals
The use of agricultural chemicals, such as pests and herbicides, can lead to soil pollution in England These chemicals can persist in the soil for long periods and have negative impacts on soil health and biodiversity
目录
O1
(推选)环境保护空气污染英语演讲PPT文档
Plant more tree
Say goodbay to car. Walking or biking
A green earth, a green life!
Air pollution is the introduction of chemicals, particulate matter, or biological. N2O NO2 NO Life with flower Do you want to live like this ? ? ? You can visit these web sites to learn more knowledge: The industry air pollution You can visit these web sites to learn more knowledge: It is a threat to human health as well as to the Earth's ecosystems. The kinds of air pollution You can visit these web sites to learn more knowledge: It is a threat to human health as well as to the Earth's ecosystems. What is air pollution Do not use the paint with formaldehyde(HCHO) Human beings discharge poisonous gas in the air. use wheat-straw to plant mushroom
The acid rain
The Longyuan students dormitory
保护环境的英文版 ppt课件
• 不向江河湖海中扔垃圾，造成水污染
• Don't throw rubbish everywhere
• 不随地乱扔ห้องสมุดไป่ตู้圾
• Turn off the faucet. Save water Multi-purpose monohydrate. Try to recycle
• 随手关掉水龙头.节约水资源 一水多用.尽量循环使用
• Turn off unused electrical appliances. To save electricity
• As far as possible need not plastic bags, use environmental protection bags
• Environmental protection from yourself. Every moment, with actions to infect others
development • ……
• 环保从自己.每时每刻做起,用行动去感染别人
Energy conservation
• Use green shopping bags instead of plastics
• Turn off the light before you get out
• Raise the temperature of air-conditioning
when you wash and brush • Discharge sewage after treatment
• Plant more trees; protect the forests and all the animals
• Use of renewable materials • Restrict the use of private cars • Implement of sustainable economic
• Don't throw rubbish everywhere
• 不随地乱扔ห้องสมุดไป่ตู้圾
• Turn off the faucet. Save water Multi-purpose monohydrate. Try to recycle
• 随手关掉水龙头.节约水资源 一水多用.尽量循环使用
• Turn off unused electrical appliances. To save electricity
• As far as possible need not plastic bags, use environmental protection bags
• Environmental protection from yourself. Every moment, with actions to infect others
development • ……
• 环保从自己.每时每刻做起,用行动去感染别人
Energy conservation
• Use green shopping bags instead of plastics
• Turn off the light before you get out
• Raise the temperature of air-conditioning
when you wash and brush • Discharge sewage after treatment
• Plant more trees; protect the forests and all the animals
• Use of renewable materials • Restrict the use of private cars • Implement of sustainable economic
环境保护PPT(英文版)
现在社会，越来越追求高科技高经
纪发展。但在追求的同时，有一个新 的问题出现，那就是环境。不得不承 认，地球目前的现状越来越恶劣。到 处都是白色污染，到处都是水资源 匮乏，到处都是二氧化碳排放。人们 在发展的同时，是否应该回过头来 看看，那些已经无法挽救的，生命。
The world's
top ten environmental problems
世界十大环境问题
◆ 1.Global warming---全球变暖 ◆ 2.Ozone layer depletion---臭氧层破坏 ◆ 3.Loss of biodiversity---生物多样性减少 ◆ 4.The spread of acid rain---酸雨蔓延 ◆ 5.Forest dropped---森林锐减
Environmental Protection
环境保护
Environment
is the things around the center of things
环境是一切的中心
Now, more and more for the society developing high-tech brokerage. But at the same time, in pursuit of a new problem appeared that environment. Acknowledge the current situation, the earth is becoming worse and worse. Everywhere is white pollution, everywhere is scarcity, everywhere is carbon dioxide emissions. People in the development at the same time, whether should return overdo see, those who had saved the life
纪发展。但在追求的同时，有一个新 的问题出现，那就是环境。不得不承 认，地球目前的现状越来越恶劣。到 处都是白色污染，到处都是水资源 匮乏，到处都是二氧化碳排放。人们 在发展的同时，是否应该回过头来 看看，那些已经无法挽救的，生命。
The world's
top ten environmental problems
世界十大环境问题
◆ 1.Global warming---全球变暖 ◆ 2.Ozone layer depletion---臭氧层破坏 ◆ 3.Loss of biodiversity---生物多样性减少 ◆ 4.The spread of acid rain---酸雨蔓延 ◆ 5.Forest dropped---森林锐减
Environmental Protection
环境保护
Environment
is the things around the center of things
环境是一切的中心
Now, more and more for the society developing high-tech brokerage. But at the same time, in pursuit of a new problem appeared that environment. Acknowledge the current situation, the earth is becoming worse and worse. Everywhere is white pollution, everywhere is scarcity, everywhere is carbon dioxide emissions. People in the development at the same time, whether should return overdo see, those who had saved the life
保护环境的PPT英文版PPT课件
Governments collaborate internationally to share resources, knowledge, and technologies to address environmental challenges.
05
The Future and Our Role
Objectives of the Presentation
01
To introduce the audience to the concept of environmental protection.
02
To highlight the importance of environmental protection and its impact on society and the economy.
03
To provide information on sustainable development and practical ways to protect the environment.
02
The Environment and Human
Interference
The Ecosystem
Details
Methods for reducing waste include using sustainable packaging materials, such as paper or cardboard; using recyclable items, such as glass or aluminum; and composting organic waste.
Details
Protecting Habitats
05
The Future and Our Role
Objectives of the Presentation
01
To introduce the audience to the concept of environmental protection.
02
To highlight the importance of environmental protection and its impact on society and the economy.
03
To provide information on sustainable development and practical ways to protect the environment.
02
The Environment and Human
Interference
The Ecosystem
Details
Methods for reducing waste include using sustainable packaging materials, such as paper or cardboard; using recyclable items, such as glass or aluminum; and composting organic waste.
Details
Protecting Habitats
《环境保护英语》PPT课件(2024)
• Challenges and solutions for garbage classification: raising public awareness, improving regulatory systems, and strengthening regulatory efforts.
2024/1/24
The development of environmental protection
With the continuous progress of technology and the improvement of environmental awareness, environmental protection has gone through a development process from end of pipe governance to source control, from single means to comprehensive implementation.
2024/1/24
6
02
Basic knowledge of environmental protection
2024/1/24
7
Ecosystem and Biodiversity
2024/1/24
The composition and function of ecosystems
including biological communities, non biological environments, and their interactions.
Opportunities
At the same time, with the rapid development of clean energy, circular economy, green technology and other fields, new solutions and development opportunities have been provided for environmental protection.
2024/1/24
The development of environmental protection
With the continuous progress of technology and the improvement of environmental awareness, environmental protection has gone through a development process from end of pipe governance to source control, from single means to comprehensive implementation.
2024/1/24
6
02
Basic knowledge of environmental protection
2024/1/24
7
Ecosystem and Biodiversity
2024/1/24
The composition and function of ecosystems
including biological communities, non biological environments, and their interactions.
Opportunities
At the same time, with the rapid development of clean energy, circular economy, green technology and other fields, new solutions and development opportunities have been provided for environmental protection.
保护环境的PPT英文版
Loss of soil fertility and productivity
Changes in soil chemistry and biology
Groundwater pollution and soil erosion
Global Warming
Causes of Global Warming Emission of greenhouse gases: CO2, methane, nitrogen oxide
The industrial revolution has broken about rapid economic
growth, but also caused environmental pollution and
resource waste
The large amount of emissions from factories and power plants has serially pooled the air, water,
Importance of environmental protection
Environmental protection is crucial for safeguarding human health and well being
It attributes to the conservation of natural resources and biodiversity, ensuring sustainable use of ecosystems
01
CHAPTER
Introduction
Background of the issue
The global community has recognized the urgent need to address environmental challenges to ensure sustainable development
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
Earth for everything we need to survive, so let’s take care of it.
• We can’t live without water, but now the water was polluted. It is the biggest problem. It influences our daily life. So we should find a way to solve this problem.
Water Treatment Processes
14
Water Treatment
15
• Water treatment operations fulfill one or three key
tasks: removal of particulate substances such as sand and clay, organic matter, bacteria, and algae; removal of dissolved substances such as those causing color and hardness; and removal or destruction of pathogenic bacteria and viruses. The actual selection of treatment processes depends on the type of water source and the desired water quality.
• 沉淀是水和废水处理中最古老和应用最广的方法，利用重力沉淀去除水中颗 粒物。它相对简便、廉价，可用通过圆形、方形或者矩形的水池来实现。如 前所述，沉淀池跟在混凝和絮凝（对于高度浑浊的水）或者被完全省略（中 度浑浊的水）。
• 格栅是水处理的第一阶段，它能去除大块固体例如木头、树枝、破布和小 鱼。这些垃圾进入处理厂会损害水泵并堵塞管道。同理，入水口设置在湖 泊或者河流表面以下，以排除漂浮物并最小化冰块的物理破坏。
17
Sedimentation
• Sedimentation, the oldest and most widely used form of water and wastewater treatment, uses gravity settling to remove particles from water. It is relatively simple and inexpensive and can be implemented in basins that are round, square, or rectangular. As noted earlier, sedimentation may follow coagulation and flocculation (for highly turbid water) or be omitted entirely (with moderately turbid water).
Air pullution
Automobile exhaust The heavy smoke piped from the factory chimneys.
The noise pollution
The rubbish we produced
The White pollution
In my words
• 水处理操作完成一个或三个关键任务：去除颗粒物如沙粒和粘土、有机物、 细菌和藻类，去除溶解物质如那些产生颜色和硬度的，及除去或消灭致病细 菌和病毒。处理工艺的实际选择依赖于水源的类型和水质要求。
16
• Screening to remove large solids such as logs, branches, rags, and small fish is the first stage in the treatment of water. Allowing such debris into the treatment plant could damage pumps and clog pipes and channels. For the same reasons, water intakes are located below the surface of the lake or river in order to exclude floating objects and minimize physical damage from ice.
• The environment is the world we live in, and the natural surroundings. • Every time we spread our citys, every garbage we produce, every drop of water we pollute，we hurt our“mother nature”.
Environmental science and engineering
TEAM:408
Amos Thomas Demon
1
2019/5/9
These are the ideal environment that we dream to live in.
Wake up! These are the environment we live in now!
2019/5/9
pollutions
2019/5/9
Water pollution
• Water pollution is the contamination of water bodies such as lakes, rivers, oceans, and groundwater.
Water pollution
• We can’t live without water, but now the water was polluted. It is the biggest problem. It influences our daily life. So we should find a way to solve this problem.
Water Treatment Processes
14
Water Treatment
15
• Water treatment operations fulfill one or three key
tasks: removal of particulate substances such as sand and clay, organic matter, bacteria, and algae; removal of dissolved substances such as those causing color and hardness; and removal or destruction of pathogenic bacteria and viruses. The actual selection of treatment processes depends on the type of water source and the desired water quality.
• 沉淀是水和废水处理中最古老和应用最广的方法，利用重力沉淀去除水中颗 粒物。它相对简便、廉价，可用通过圆形、方形或者矩形的水池来实现。如 前所述，沉淀池跟在混凝和絮凝（对于高度浑浊的水）或者被完全省略（中 度浑浊的水）。
• 格栅是水处理的第一阶段，它能去除大块固体例如木头、树枝、破布和小 鱼。这些垃圾进入处理厂会损害水泵并堵塞管道。同理，入水口设置在湖 泊或者河流表面以下，以排除漂浮物并最小化冰块的物理破坏。
17
Sedimentation
• Sedimentation, the oldest and most widely used form of water and wastewater treatment, uses gravity settling to remove particles from water. It is relatively simple and inexpensive and can be implemented in basins that are round, square, or rectangular. As noted earlier, sedimentation may follow coagulation and flocculation (for highly turbid water) or be omitted entirely (with moderately turbid water).
Air pullution
Automobile exhaust The heavy smoke piped from the factory chimneys.
The noise pollution
The rubbish we produced
The White pollution
In my words
• 水处理操作完成一个或三个关键任务：去除颗粒物如沙粒和粘土、有机物、 细菌和藻类，去除溶解物质如那些产生颜色和硬度的，及除去或消灭致病细 菌和病毒。处理工艺的实际选择依赖于水源的类型和水质要求。
16
• Screening to remove large solids such as logs, branches, rags, and small fish is the first stage in the treatment of water. Allowing such debris into the treatment plant could damage pumps and clog pipes and channels. For the same reasons, water intakes are located below the surface of the lake or river in order to exclude floating objects and minimize physical damage from ice.
• The environment is the world we live in, and the natural surroundings. • Every time we spread our citys, every garbage we produce, every drop of water we pollute，we hurt our“mother nature”.
Environmental science and engineering
TEAM:408
Amos Thomas Demon
1
2019/5/9
These are the ideal environment that we dream to live in.
Wake up! These are the environment we live in now!
2019/5/9
pollutions
2019/5/9
Water pollution
• Water pollution is the contamination of water bodies such as lakes, rivers, oceans, and groundwater.
Water pollution