Preventing and combating pollution has become an embarrassment for current sewage treatment plants. Why did the sewage treatment plant, which should have centralized treatment of sewage and turned it into qualified water, become a source of pollution instead?At the recent meeting of the Ministry of Ecology and Environment4At the monthly press conference, Zhang Bo, the person in charge of water environment management at the Ministry of Ecology and Environment, responded to this.

From the daily monitoring of the Ministry of Environmental Protection, it can be seen that the sewage treatment plant, which should have been the last line of defense for sewage, has turned out to be a major pollutant. As the construction quantity and scale enter the fast lane of development, a series of problems such as excessive discharge, high energy consumption, low production capacity, and "sun exposure" of sewage treatment plants are gradually emerging. According to media reports, also last year, over153Key enterprises under national control have been severely punished for exceeding the standard, among which100Home is a sewage treatment plant, accounting for over half of all types of enterprises. This is not only because of the low cost of illegal activities in the past, but also because of the certain natural monopoly of the sewage treatment industry.

On the one hand, many sewage treatment plants have gone from being "unable to eat enough" in the past to being "unable to cope". Zhang Bojin pointed out that some places have built sewage treatment plants but have not established sewage treatment collection pipelines covering the entire area, which cannot keep up with the rapid economic development and urban population growth, resulting in the treatment capacity of sewage treatment plants falling far behind the needs of production development. The insufficient treatment capacity of sewage treatment plants has led to many of them playing the role of polluters. In addition, the frequent occurrence of illegal discharge in the past period has greatly reduced the efficiency and effectiveness of sewage treatment in many areas.

On the other hand, many sewage treatment plants are not actually put into use after construction, often becoming mere decorations, and a large amount of untreated wastewater is directly discharged, becoming a "source of pollution". Especially in some industrial parks, the centralized treatment of wastewater by sewage treatment plants has become a protective umbrella for polluting enterprises. As of now, the quarterly reports of pollution source supervision and monitoring in most key environmental protection cities across the country have been made public on a regular basis. In addition to transparency, it is also important to clarify responsibilities, especially for wastewater treatment plants that accept industrial wastewater.

But the core issue is still the lack of motivation for sewage treatment companies to "improve". Especially since the cost of pollution control is higher than the cost of discharge, the phenomenon of losses in sewage treatment plants is still quite serious. The sewage treatment plant is unable to maintain its daily operating funds, and the enthusiasm for increasing investment in process technology renovation is not high. At the same time, the operation mechanism of sewage treatment plants is still not smooth, and an effective profit mechanism has not been established. Other common issues include: abnormal operation of processing facilities, abnormal operation of online monitoring, and incomplete environmental acceptance of construction projects.

In the future, the construction and operation of sewage treatment plants still have a long way to go. In the new operating environment mentioned above, refined operation will become an inevitable choice, and at the same time, sewage treatment plants urgently need to start with capacity expansion and upgrading to fundamentally solve the sewage dilemma.

Guangzhou Lvye Environmental Protection Equipment Co., Ltd