1. The importance of sewage treatment

First of all, it must be recognized that sewage treatment is the basic work to maintain water ecological security. Untreated or improperly treated sewage discharged directly into natural waters will lead to the deterioration of water quality and affect human health and biodiversity. Through scientific and reasonable sewage treatment technology, pollutants can be effectively removed, the self-purification ability of water bodies can be restored and maintained, and clean water sources can be guaranteed for social and economic development.

2. Macro-control strategy

(1) Construction of laws and regulations

Establish and improve the relevant laws and regulations, clarify the responsibilities and obligations of governments at all levels and all sectors of society, formulate strict emission standards and technical specifications, increase penalties for illegal sewage discharge, and form a strong legal restraint mechanism.

(2) Economic policy support

Use financial subsidies, tax incentives and other economic means to encourage enterprises to invest in the construction and operation of sewage treatment facilities and reduce their cost burden; At the same time, explore the establishment of diversified investment and financing channels, attract social capital to participate, and improve the efficiency of capital use.

(3) Leading by scientific and technological innovation

Encourage and support scientific research institutions to carry out research and development of new technologies and processes for sewage treatment, and promote the transformation of scientific and technological achievements into productive forces; Strengthen international exchanges and cooperation, introduce foreign advanced technology and management experience, and improve the overall level of China's sewage treatment industry.

(4) Cultivation of public awareness

Popularize environmental protection knowledge, enhance citizens' awareness of water saving and emission reduction, and advocate a green lifestyle; Organize volunteer activities to guide all sectors of society to actively participate in environmental protection and jointly create a good social atmosphere.

3. Conclusion

To sum up, in the face of the increasingly serious water pollution problem, we need to take comprehensive macro-control measures from multiple angles to achieve the goal of coordinating economic benefits with ecological protection. Only in this way can we truly achieve the sustainable development goal of meeting the needs of current social development without harming the interests of future generations.