FIELD: process engineering.
SUBSTANCE: invention relates to cleaning of fish pool from organic and inorganic duck wastes and heavy-metal contaminants. Piscicultural combined farms located in the areas of industrial enterprises cultivate fish and ducks. Water macro vegetation is used for water and soil cleaning: reed, cane, water plantain, wild calla arranged in 2-3 m wide strip along water section of duck open-air cage, nearby water feed source. Note here that density of ducks makes some 250 pcs per hec.
EFFECT: better sanitary-biological, chemical and toxicological properties of water and bottom sediment.
3 tbl, 1 ex
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Authors
Dates
2014-05-27—Published
2012-07-05—Filed