精选优质文档-倾情为你奉上Sewage treatmentAbstract：Sewage treatment, or domestic wastewater treatment, is the process of removing from and household sewage, both () and domestic. It includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants. Its objective is to produce a waste stream (or treated ) and a solid waste or sludge suitable for discharge or reuse back into the environment. This material is often inadvertently contaminated with many org
