New characteristics of decentralized wastewater treatment facilities

Toilet water, washing with water, etc. , if the rural life drainage through sintering filter appropriate processing, will increase the nonpoint source pollution load of agricultural land, and further affect the growth of crops and river water quality. In many small and medium-sized cities and rural areas have no sewage collection pipe, untreated life drain has become one of the important pollution sources. Due to the construction and operation cost on the high side, these areas are not suitable for the introduction of a centralized sewage treatment system, but need low cost, high efficiency and decentralized wastewater treatment technology. Japan has a mature sewage purification tank and decentralized wastewater treatment technology and experience.