With the development of economy and the acceleration of urbanization, water pollution is becoming more and more serious, which has a serious impact on people's healthy life. Faced with the grim situation, local governments have increased their investment in sewage treatment and achieved remarkable results.

In recent years, China has continuously made new breakthroughs in the construction of urban sewage treatment facilities. In 2019, the proportion of black and odorous water bodies in the built-up areas of cities at or above the prefecture level reached 86.7%, an increase of 4 percentage points over the previous year; By the end of 2020, this figure has reached more than 90%, and the goal of the 13 th Five-Year Plan has been completed ahead of schedule. In addition, domestic sewage treatment facilities in rural areas are gradually improving. By the end of 2020, the comprehensive environmental improvement of 130,000 administrative villages has been completed nationwide, benefiting more than 100 million people.

At the same time, the discharge of industrial wastewater is decreasing year by year. According to the data released by the Ministry of Ecology and Environment, from 2018 to 2020, the total discharge of major pollutants such as chemical oxygen demand and ammonia nitrogen of industrial enterprises above designated size in China decreased by 11.9% and 12.2% respectively, far exceeding the expected target. This is due to the effective implementation of a series of policy measures: on the one hand, by raising the entry threshold, the expansion of industries with high energy consumption and heavy pollution is restricted; On the other hand, enterprises are encouraged to adopt cleaner production technology to reduce pollutants from the source.

Sewage treatment not only solves the problem of environmental pollution, but also brings great economic benefits and social value. Taking reclaimed water resources as an example, after advanced treatment, urban sewage can be used as industrial cooling water or agricultural irrigation water source, which alleviates the contradiction between supply and demand and promotes sustainable development. According to statistics, in 2019, the national reclaimed water reached 11 billion tons, an increase of about 10% year-on-year, of which more than 80% was used in the fields of landscape replenishment and ecological restoration. In addition, recycling the organic matter in sludge can not only reduce the risk of secondary pollution caused by landfill disposal, but also provide high-quality fertilizer resources for agricultural production.

In short, the sewage treatment capacity has been continuously improved, and its environmental benefits are gradually emerging, which has become one of the powerful driving forces to promote high-quality economic and social development. future, we have reason to believe that with the joint efforts of the China government and all the people, a beautiful home with sky blue, green land and clear water is just around the corner!