Terms used in official statistics

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Household sewage treatment plant


Definition:

A complex of devices intended for treatment of sewage produced in one or more households.



As a result of an anaerobic and aerobic decomposition occurring in that system, the larger part of sewage is converted into the form of water of second class quality that can be safely discharged into the ground or nearby surface waters (rivers, streams, ditches, ponds, lakes). A household sewage treatment plant consists of a primary settling tank and a final treatment system. Depending on the type of the final treatment system there are household sewage treatment plants with: - dispersing drainage, - sand filter, - plant bed (soil-plant filters, hydroponic beds), - biofilter (containter treatment plant), - activated sludge (container treatment plant).


Contact person on methodology:
Jarosław Hejne
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