With the increasingly serious global environmental problems, water pollution has become a huge challenge for human society. Industrial wastewater, agricultural runoff and urban domestic sewage are directly discharged into the natural environment without treatment or incomplete treatment, which not only destroys the ecological balance, but also poses a serious threat to human health. In this context, how to effectively deal with the pressure of sewage treatment has become an urgent problem to be solved.

First, the current situation analysis

1. Increase in water volume: With the acceleration of urbanization and population growth, the amount of sewage generated has increased year by year. Especially in some areas with rapid economic development, because the infrastructure construction lags behind the speed of economic development, the sewage treatment capacity is insufficient, and a large number of untreated domestic sewage is discharged into rivers and lakes.

2. Backward technology: Although China has made great progress in the field of sewage treatment in recent years, there is still a certain gap compared with developed countries. Many sewage treatment plants in small and medium-sized cities adopt traditional activated sludge process or biological contact oxidation process, and these methods are not effective in removing some refractory organic substances and heavy metal ions.

3. Lack of funds: Efficient and advanced sewage treatment technologies and equipment often require high investment costs. However, in some poor areas or cities with tight financial resources, it is difficult for the government to bear the high cost of technological transformation, thus limiting the improvement of sewage treatment efficiency.

Second, the countermeasures and suggestions

1. Strengthen the formulation and improvement of laws and regulations: the state should introduce a stricter legal system for environmental protection, clarify the discharge standards of various pollutants, and increase penalties for illegal sewage discharge to reduce sewage production at the source.

2. Popularize the application of new technologies: encourage and support scientific research institutions and enterprises to develop high-efficiency and low-consumption sewage treatment technologies suitable for different scenarios, such as membrane separation technology and advanced oxidation technology, and promote their commercialization through policy guidance.

3. Broaden financing channels: consider setting up a special fund to support the construction of local sewage treatment facilities; At the same time, attract social capital to participate in investment and operation, and form a diversified investment mechanism.

Third, the conclusion

Facing the pressure of sewage treatment brought by environmental crisis, we should not only realize the urgency and complexity of the problem, but also actively seek scientific and reasonable solutions. Only with the joint efforts of the whole society can we realize the effective protection and sustainable utilization of water resources and leave a clean and beautiful home for future generations.