FIELD: agriculture.
SUBSTANCE: method for production of organo-mineral fertilizer from waste water of a pig farm is characterized by reagent treatment and disinfection of waste water of a pig farm with a lime-containing preparation with an increase in the pH of effluents to 10–11, adding a phosphate ion in the form of acid salts of orthophosphoric acid to form a slightly soluble calcium-ammonium phosphate with further neutralization of the effluent with phosphoric acid, neutralized effluent is separated with separation of solid organo-mineral fertilizer and separated liquid fraction, liquid fraction separated on the separator is treated in chemical reactors, acting with a strong oxidant, which contains potassium persulphate, with further adjustment of the pH value of the treated medium, sludge based on phosphogypsum formed as a result of treatment of the liquid fraction in chemical reactors is separated by separation to obtain phosphogypsum and liquid organo-mineral fertilizer.
EFFECT: invention makes it possible to improve ecology in the vicinity of pig farms due to utilization of waste water from pig farms.
4 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARATION WASTE WATER FROM PIG-BREEDING COMPLEXES AND FARMS FOR AGRICULTURAL USE | 2006 |
|
RU2323917C1 |
| METHOD FOR CLEANING PIG DRAINS | 2022 |
|
RU2791150C1 |
| METHOD FOR PREPARATION OF LIQUID WASTES OF CATTLE-BREEDING COMPLEXES FOR AGRICULTURAL USE | 2019 |
|
RU2725235C1 |
| METHOD OF PREPARATION 0F WASTE WATERS FOR AGRICULTURAL USAGE | 2003 |
|
RU2257353C2 |
| METHOD FOR PREPARATION OF WASTE WATER FOR AGRICULTURAL USE | 2018 |
|
RU2683759C1 |
| METHOD FOR PREPARING WASTE WATER OF SWINE COMPLEXES AND SWINE FARMS FOR AGRICULTURAL APPLICATION | 2003 |
|
RU2242444C1 |
| METHOD OF PRODUCING ORGANO-MINERAL FERTILIZER | 2019 |
|
RU2727004C1 |
| METHOD OF TREATING WASTE WATERS FROM CATTLE-BREEDING FARMS FOR AGRICULTURAL USE | 2003 |
|
RU2243170C1 |
| METHOD OF PREPARING LIQIUD WASTES FROM PIG FARM FOR AGRICULTURAL USE | 2009 |
|
RU2424985C2 |
| METHOD FOR TREATMENT OF LIVESTOCK EFFLUENTS OF PIG-BREEDING COMPLEXES AND FARMS FOR AGRICULTURAL USE | 2016 |
|
RU2645555C2 |
