污水处理外文文献

污水处理外文文献
Wastewater treatment is a critical process that involves the removal of pollutants and contaminants from water, making it safe for discharge back into the environment or for reuse. This process is important because it ensures that water resources are not polluted or depleted, which can have severe consequences on the environment and public health. In this document, we will explore some important foreign language literature on wastewater treatment, its different types, and the various techniques used in the process.
Types of Wastewater Treatment
Generally, wastewater treatment can be classified into two categories: primary treatment and secondary treatment. Primary treatment involves the physical removal of large, suspended solids from wastewater. This process primarily relies on sedimentation and filtration techniques. Secondary treatment, on the other hand, is a biological process that involves the use of microorganisms to break down organic matter in wastewater. It usually follows primary treatment and is more effective at removing pollutants than primary treatment.
Techniques Used in Wastewater Treatment
There are several techniques used in the treatment of wastewater. Some of these techniques include:
1. Biological Treatment: This is the most commonly used method in secondary treatment, and it involves the use of biological agents such as bacteria and microorganisms to degrade organic matter in wastewater. The process involves aerobic or anaerobic degradation of pollutants in wastewater. During this process, microorganisms convert organic matter into carbon dioxide and water.
2. Chemical Treatment: This method involves adding chemicals, such as coagulants and flocculants, to wastewater to remove suspended solids and other contaminants. Chemical treatment is commonly used in primary treatment processes.
3. Physical Treatment: This method involves the removal of solids and other particles from wastewater using physical processes such as sedimentation, filtration, and screening. Physical treatment is usually used at the beginning of the treatment process.
4. Membrane Technology: This is a newer process in wastewater treatment that uses filters with tiny pores to separate contaminants from wastewater. It is mainly used in tertiary treatment, which is the final stage of treatment before discharge.
Foreign Language Literature on Wastewater Treatment
There are several foreign language literature sources on wastewater treatment. Some of the most important ones include:
1. The Water Environment Federation: This is a non-profit organization that provides publications and research on wastewater treatment. They offer peer-reviewed journals and books that provide valuable information on the latest research and technology in wastewater treatment.
2. Water Research Journal: This is an international journal that publishes research on water treatment and related fields. It offers peer-reviewed articles on topics such as wastewater engineering, water quality, and water resources.
3. Environmental Science and Technology Journal: This is a publication that covers various aspects of environmental science and technology, including water treatment. It provides
peer-reviewed articles on research in environmental science and technology.
Conclusion
Wastewater treatment is an essential process that ensures that water resources are not polluted or depleted. It involves different treatment methods, such as physical, chemical, and biological treatment. Among the different sources of literature on wastewater treatment, the Water Environment Federation, the Water Research Journal, and the Environmental Science and Technology Journal are valuable sources of information. New
advances in technology mean that wastewater treatment is becoming more efficient and effective, ensuring the safe discharge of treated wastewater back into the environment or for reuse.。