Iron and steel metallurgical Water RO System Treatment 

Sewage treatment (or domestic sewage treatment, urban sewage treatment) is a kind of sewage treatment, the purpose of which is to remove pollutants in sewage, produce sewage suitable for discharge into the surrounding environment or intended reuse, so as to prevent raw water pollution. Sewage discharge. [2] Wastewater includes wastewater from homes and businesses as well as industrial wastewater that may be pretreated. There are a large number of wastewater treatment processes to choose from. These can range from decentralized systems (including on-site treatment systems) to large centralized systems that involve a network of pipes and pumping stations that transport sewage to treatment plants (known as wastewater treatment systems). For cities with combined sewers, sewers also transport urban runoff (stormwater) to wastewater treatment plants. Wastewater treatment usually involves two major stages, called primary treatment and secondary treatment, while advanced treatment also inclu…