METHOD AND DEVICE FOR LIVESTOCK FARMS EFFLUENTS TREATMENT Russian patent published in 2020 - IPC C02F9/14 C02F11/04 C02F3/30 C05F3/00 C05F17/00 A01C3/00 

FIELD: water and air purification technology.

SUBSTANCE: group of inventions can be used in treatment of waste water of livestock farms, in particular drains from farms containing cattle, or from pig farms. Device for cleaning daily volume of waste water from livestock farms includes collector tank (1), preprocessing channel (2), anaerobic sequencing batch reactor (ASBR) (3), an aerobic reactor with mixer (4), which is a sequencing batch reactor (SBR), compost tank (5). Method for treatment of waste water of livestock farms includes: i) collection of raw liquid wastes, ii) transferring uncleaned liquid wastes to flow channel (2) with addition of pre-treated waste water, iii) transferring pre-treated waste water into ASBR (3), SBR (4) and into compost tank (5), where the treated waste water is mixed with cellulose wastes and compost is obtained; iv) separating a portion of the transferred purified effluents with feeding a portion of the stream into SBR (4) with adjusting the pH values in the SBR to alkaline values; v) reacting pre-treated waste water in ASBR (3), vi) collection of biogas, vii) transfer of anaerobically treated waste water from upper part of ASBR (3) to SBR (4) and transfer of anaerobically treated waste water from lower part of ASBR (3) into channel (2), viii) reacting anaerobically treated waste water in SBR (4), transfer of aerobically treated waste water from SBR (4) upper part to obtain purified water and transfer of aerobically treated waste water from SBR (4) lower part to ASBR (3).

EFFECT: group of inventions enables to obtain purified water corresponding to standards for its release into a municipal system or use in agriculture.

22 cl, 3 dwg, 2 tbl