1. The importance of sewage treatment

Safeguard public health: reduce the risk of disease transmission by effectively removing harmful substances from sewage.

Promote the recycling of resources: properly treated sewage can be used as non-drinking water sources, such as agricultural irrigation and industrial cooling, which will help alleviate the shortage of water resources.

Maintain the stability of ecosystem: prevent pollutants from entering surface water bodies and underground water systems such as rivers and lakes, avoid harm to aquatic organisms, and maintain ecological diversity.

2. Infrastructure and technical methods

Physical law

Comprises the steps of grid filtration, sedimentation tank clarification and the like, and is mainly used for removing suspended solid particles and other large impurities.

chemical method

Chemical agents are used for coagulation, redox reaction, etc. to achieve the purpose of degrading organic matter, sterilization and disinfection.

Biological method

Using the metabolic function of microorganisms to decompose organic pollutants in water, the common methods are activated sludge method and biofilm method.

3. Application of environmental protection concept

Energy saving and emission reduction: optimize the design process to improve energy efficiency; Choose low-energy equipment and technical solutions; Strengthen management and maintenance to reduce operating costs.

Green materials: choose environment-friendly building materials to build sewage treatment plant, and consider its environmental impact during its life cycle.

Public participation: enhance citizens' awareness of environmental protection, encourage all sectors of society to participate in water saving and emission reduction activities, and jointly protect our earth home.

4. Conclusion

To sum up, The Foundation of Sewage Treatment under Environmental Protection not only emphasizes the importance of scientific and reasonable construction and operation of sewage treatment facilities, but also advocates a more comprehensive and long-term development concept-that is, while pursuing economic benefits, ecological benefits and social benefits must be taken into account. Only in this way can we truly realize the beautiful vision of harmonious coexistence between man and nature.