Sewage, Sewerage & Sewer


Sewage: Is water-carried wastes, in either solution or suspension, that is intended to flow away from a community. Also known as wastewater flows, sewage is the used water supply of the community. It is more than 99.9% pure water and is characterized by its volume or rate of flow, its physical condition, its chemical constituents, and the bacteriological organisms that it contains. Depending on their origin, wastewaters can be classed as sanitary, commercial, industrial, agricultural or surface runoff (Source: The Free Dictionary by Farlex).


Sewerage: Refers to the infrastructure that conveys sewage. It encompasses receiving drains, manholes, pumping stations, storm overflows, screening chambers, etc. of the sanitary sewer. Sewerage ends at the entry to a sewage treatment plant or at the point of discharge into the environment. (Source: The Free Dictionary by Farlex).


Piped sewer system : A system of sewer pipes, also called sewerage, that is designed to collect human excreta (faeces and urine) and wastewater and remove them from the household environment. Sewerage systems consist of facilities for collection, pumping, treating and disposing of human excreta and wastewater (Source: JMP; http://www.wssinfo.org/definitions-methods/watsan-categories/).


Sewer: An artificial subterranean conduit to carry off sewage and sometimes surface water (as from rainfall).