Search Results for: Echinoderms waste
physical condition, chemical and toxic constituents, and its bacteriologic status (which organisms it contains and in what quantities). it consists mostly of greywater (from sinks, tubs, showers, dishwashers, and clothes washers), blackwater (the water used to flush toilets , combined with the human waste
treatment disposal reuse of treated or untreated sewage legislation european union etymology see also references overview[ edit ] before the th century, sewers usually discharged into a body of water such as a stream, river, lake, bay, or ocean. there was no treatment, so the breakdown of the human waste...
https://en.wikipedia.org/wiki/Sewage