sewage treatment
61secondary treatment — The biological degradation of dissolved organic matter in the process of sewage treatment; the organic material is either mineralized or changed to settleable solids …
62Industrial wastewater treatment — covers the mechanisms and processes used to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re use.Most industries produce some wet waste… …
63Mechanical biological treatment — Anaerobic digestion and air processing components of Lübeck mechanical biological treatment plant in Germany A mechanical biological treatment system is a type of waste processing facility that combines a sorting facility with a form of… …
64Mechanical heat treatment — (MHT) is an alternative waste treatment technology. This technology is also commonly termed Autoclaving. MHT involves a mechanical sorting or pre processing stage with technology often found in a material recovery facility. The mechanical sorting …
65wastewater treatment — The use of physical and biological processes to remove particulate and dissolved material from sewage and to control pathogens …
66activated-sludge method — ▪ sewage treatment sewage treatment (sewage system) process in which sludge, the accumulated, bacteria rich deposits of settling tanks and basins, is seeded into incoming waste water and the mixture agitated for several hours in the… …
67sedimentation tank — ▪ sewage treatment also called Settling Tank, component of a modern sewage treatment system. In a large metropolitan system, waste water is passed through a series of tanks following coarse screening to remove large objects. Grit… …
68environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
69Wastewater — For the lake in Northwestern England, see Wastwater. Public infrastructure …
70Reclaimed water — Reclaimed water, sometimes called recycled water, is former wastewater (sewage) that has been treated to remove solids and certain impurities, and then allowed to recharge the aquifer rather than being discharged to surface water. This recharging …
