FIELD: waste water treatment in agriculture.
SUBSTANCE: invention relates to utilization of cattle-breeding farm waste waters for irrigation and fertilization of agricultural areas. Method is implemented by first adding calcium oxide-containing alkaline coagulant, 1.0-3.0 g/dm3, and then adding acidifying reagent to pH 6.5-8.5 resulting in formation of precipitate, said alkaline coagulant being acetylene production waste, namely suspension of calcium carbide slime or 1:2 mixture of lime milk with calcium carbide slime suspension, and said acidifying reagent being suspension of simple or double superphosphate, respectively 3.0-6.0 and 1.0-3.0 g/dm3 (calculated as P2O5).
EFFECT: substantially simplified reagent preparation procedure, reduced expenses on waste water treatment, and enhanced agricultural value of produced fractions.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARATION 0F WASTE WATERS FOR AGRICULTURAL USAGE | 2003 |
|
RU2257353C2 |
| METHOD FOR PREPARATION OF WASTE WATER FOR AGRICULTURAL USE | 2018 |
|
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| METHOD OF PREPARING LIVESTOCK-BREEDING COMPLEXES WASTE WATER FOR AGRICULTURAL USE | 2018 |
|
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| METHOD FOR PREPARATION OF LIQUID WASTES OF CATTLE-BREEDING COMPLEXES FOR AGRICULTURAL USE | 2019 |
|
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| METHOD FOR PREPARATION OF LIQUID WASTES OF PIG COMPLEXES FOR AGRICULTURAL USE | 2020 |
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| METHOD OF TREATING EFFLUENTS FROM PIG-BREEDING COMPLEXES AND FARMS FOR AGRICULTURAL APPLICATIONS | 2006 |
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