What does Guangdong do with domestic sewage treatment?

Guangdong is China's most populous province, according to the latest population data show that the number of people in Guangdong ranks first in the country, has more than 140 million, of which the rural population accounted for about 25% of the huge rural population, the rural areas of the water environment poses a definite threat. For this reason, Guangdong in recent years, is actively promoting rural sewage treatment work. The following for you to introduce the common rural sewage treatment process technology in Guangdong.

1, AO integrated rural sewage treatment equipment + artificial wetlands

AO integrated rural sewage treatment equipment is maturing, this type of product is suitable for conventional primary B discharge standards. Composed of anoxic and aerobic two-part reaction. Sewage and reflux sludge enter into the anoxic tank at the same time, and at the same time, a part of nitrifying liquid which has been fully reacted in the aerobic tank refluxes to the anoxic tank, and denitrifying bacteria in the anoxic tank utilize the organic matter in the sewage as the carbon source in the absence of oxygen, and reduce nitrate nitrogen in the refluxed nitrifying liquid to nitrogen and release it, so as to achieve the purpose of denitrification. Artificial wetland is the ecological treatment technology with wider adaptability and lower investment. The combination of the two can not only reduce the project investment cost, its purification efficiency is also very stable. The shortcoming of this technology in the total phosphorus and total nitrogen removal efficiency is low, difficult to meet the higher standards of rural sewage treatment.