久久久欧美国产精品人妻噜噜-日韩一区二区三区射精-百度-午夜人性色福利无码视频在线观看-色综合国产一区二区三区-无码人妻精品一区二区在线视频-精品国模人妻视频网站-无码人妻一区二区三区免费n鬼沢-人妻少妇精彩视品一区二区三区-亚洲欧美日韩在线中文一

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.