With the rapid development of society, industrialization and urbanization, water pollution is becoming more and more serious, which poses a great threat to human health, ecological environment and economic development. Therefore, strengthening sewage treatment and following scientific and reasonable environmental protection standards have become one of the important measures to maintain the sustainable utilization of water resources. This paper will discuss the basic principles and importance of sewage treatment under environmental protection criteria.

1. The importance of sewage treatment

Water is the source of life and an indispensable resource for all living things on the earth. However, because industrial wastewater and domestic sewage are directly discharged into natural water without treatment, the water quality deteriorates, which not only affects people's quality of life, but also destroys the ecological balance. Effective sewage treatment can not only reduce the amount of pollutants entering the environment, but also achieve the purpose of saving water resources through recycling, which is of great significance for protecting the environment and promoting the healthy development of economy and society.

2. Basic principles under environmental protection standards

(1) prevention first

Prevention is the most economical and effective environmental protection measure. Take necessary preventive measures before production activities, such as improving production technology and using clean raw materials, to reduce the production of pollutants and fundamentally reduce the pressure of subsequent treatment.

(2) Comprehensive management

Sewage treatment should not be limited to terminal treatment, but should run through the whole production and consumption process. Through the comprehensive management of water source protection, rainwater collection and utilization, industrial water recycling and reuse, a complete water circulation system is formed.

(3) recycling

Encourage and support the use of advanced technology and equipment to realize the recycling of valuable substances (such as heavy metals and organic substances) in sewage, which not only reduces environmental pollution but also creates economic benefits.

(4) public participation

Improve public awareness of environmental protection, enhance the sense of responsibility and urgency of all sectors of society for water resources protection, and jointly participate in water resources management and supervision to form a good situation of government guidance, market operation and social co-governance.

3. Conclusion

To sum up, carrying out sewage treatment under the guidance of environmental protection standards is not only an urgent need to cope with the current grim situation, but also a strategic choice to achieve long-term development goals. We should adhere to the principles of scientific planning, rational layout and strict standards, constantly innovate and improve the sewage treatment technology system, and strive to build a harmonious and symbiotic relationship between man and nature.