The project of Beijing economic and technical development area was a geat attempt at the construction of municipalwastewaterplant in BOT mode.
北京经济技术开发区污水处理厂的建成是对于以BOT形式建设市政污水处理设施的一次伟大尝试。
2
Sewage sludge which mainly comes from the primary settling tank and discharge of surplus sludge is the deposit produced in each operating unit in municipalwastewater treatment plant.
城市污泥是城市污水处理厂经各级处理净化污水而产生的沉积物，主要来自初沉池和剩余污泥的排放。
3
Pollution total quantity control in the catchment area of municipal waste water treatment plant should avoid the repetitive treatment of municipalwastewater treatment plant.