久久久久久久国产AV,亚洲国产精品一在线观看网站,精品人妻中文字幕乱码,精品无码一区二区男人吃奶

Buried sewage treatment equipment.

Buried sewage treatment equipment, sewage disposal plant is a modular, is a kind of biological treatment system of sewage purification bodies in biofilm, give full play to the anaerobic biological filter and contact oxidation bed biofilm reactor has the biological density, anti pollution ability, low power consumption, operation stable operation, easy maintenance, the system has a wide application prospect and popularization value. Buried sewage treatment equipment using biological treatment technology in the world's leading BOD5, COD, NH3-N removal in a body, is currently the most efficient sewage treatment equipment. The treated effluent meets the national discharge standard. The equipment is made of carbon steel anti-corrosion structure or glass fiber reinforced plastic composite material, the service life of more than 20 years, the top can be through the vehicle, but also can be green.