The pollution of black and odorous water bodies is not surprising in rural areas. This is not an isolated case. Now, due to the lack of sound sewage disposal measures in many rural areas, some of the bottom-clear rivers and lakes have become black and odorous water bodies that people hide from. Today we Let's talk about the pollution of black and odorous water bodies in rural areas.

As the name suggests, black and odorous water is a river or lake water body with an anti-black color and a stinky smell. There is also an industry definition that says that black and odorous water is an extreme manifestation of the water environment suffering from organic pollution that exceeds its self-purification capacity. Black and smelly, there is basically no plankton in the water, aquatic plants are seriously degraded, the food chain has been broken, the water ecology has been unbalanced, and its functions have basically lost...

In short, it's not a good thing, and we'd better get rid of it.

Before the eradication, I believe everyone has questions, why do black and odorous water bodies appear in rural areas? If you think that the black and odorous water is the cause of the region, then you are wrong. In fact, the black and odorous water has little to do with the region and the water itself, and is more caused by humans.

Pollution caused by long-term agricultural production waste accumulation in Hanoi; pesticides and fertilizers enter nearby rivers and lakes through water circulation; rural livestock and other sideline sewage are directly discharged into rivers and lakes; rural water systems have not been dredged for many years, and the water systems are not well circulated, etc. All are the causes of black and odorous water bodies in rural areas. Among them, the direct discharge of rural sewage is one of the important reasons for the current situation. Long-term toilet sewage, bathing and washing sewage, kitchen waste sewage, and free-range livestock and poultry sewage are unintentionally discharged into rivers and lakes. These seemingly inconspicuous pollutions in life have gradually changed the appearance of rural areas and threatened rural areas. human environment.

In recent years, the state and various provinces and cities have realized the seriousness of black and odorous water bodies in rural areas, and have issued corresponding policies to rectify them, but the results have not been satisfactory. Some experts once said that the black and odorous water bodies in the countryside are relatively scattered, the matching environmental protection measures are still lacking, the management and coordination are difficult, and the management methods are single and other reasons, resulting in the ineffective treatment of black and odorous water bodies in rural areas. If rural sewage is not allowed to be discharged to rivers and lakes, where should it be discharged? How to arrange? This is an important breakthrough to prevent the continued deterioration and recurrence of black and odorous water bodies. Only by establishing a reasonable and effective sewage treatment system and domestic sewage treatment equipment to solve the problem of direct discharge of rural sewage can the problem of black and odorous water pollution in rural areas be fundamentally solved. .