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A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater flows for basic sewage treatment. [2] Settling and anaerobic digestion processes reduce solids and organics, but the treatment efficiency is only moderate (referred to as "primary treatment"). [2]
Effluent sewer systems, also called septic tank effluent gravity (STEG), solids-free sewer (SFS), or septic tank effluent drainage (STED) systems, have septic tanks that collect sewage from residences and businesses, and the liquid fraction of sewage that comes out of the tank is conveyed to a downstream receiving body such as either a ...
Sewage treatment (or domestic wastewater treatment, municipal wastewater treatment) is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable to discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage discharges. [2]
Regulations.gov is a U.S. Federal government web site that acts as an "Internet portal and document repository" [2] that allows members of the public to participate in the rulemaking processes of some Federal government agencies.
It is an example of a decentralized wastewater system, which serves one institutional building, located in an area served by municipal sewerage. Wastewater from the building is treated in a plant consisting of: septic tank, followed by planted rock filter, bio-filter and a surface flow wetland. The treated effluent is reused for irrigation of ...
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This category is for forms issued by the federal government of the United States. All such forms are numbered, and may have other names (for example, Form 1040 is called the U.S. Individual Income Tax Return.)
English: These Regulations implement and provide for the enforcement of Regulation (EU) 2017-625 (OJ No. L 95. 7.4.2017, p. 1) on official controls and other official activities performed to ensure the application of food and feed law, rules on animal health and welfare, plant health and plant protection products (“the OC Regulation”) as regards plant protection products.