FIELD: chemistry.
SUBSTANCE: invention relates to biological purification of natural water from organic compounds with membrane separation. To realise the proposed method, natural water is subjected to mechanical purification, as well as activated sludge treatment in the presence of polycyclic aromatic hydrocarbons (PAH) with aeration with compressed air, membrane separation and subsequent disinfection. Activated sludge treatment of the water with addition of nitrogen and phosphorus salts is done while maintaining mass ratio permanganate demand: nitrogen: phosphorous, equal to 7.0:1.0:0.1 - 9.0:2.0:0.2. The natural water is purified while batching the PAH.
EFFECT: increased degree of purification, possibility of purifying natural water from organic compounds which are difficult to oxidise, as well as reduced cost of purification.
2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PURIFICATION OF SEWAGE FROM ORGANIC COMPOUNDS, NITROGEN AND PHOSPHORUS | 2008 |
|
RU2351551C1 |
| METHOD FOR BIOLOGICAL TREATMENT OF SEWAGE | 1991 |
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| METHOD FOR RESTORING ENVIRONMENTAL OBJECTS CONTAMINATED WITH ORGANIC SUBSTANCES | 2022 |
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RU2799585C1 |
| METHOD OF WASTE WATER PURIFICATION FROM HARD OXIDIZED ORGANIC SUBSTANCES | 0 |
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| METHOD OF CLEANING WATER FROM DIFFICULTY OXIDIZED ORGANIC COMPOUNDS | 1994 |
|
RU2079447C1 |
| METHOD FOR DEEP COMPLEX TREATMENT OF INDUSTRIAL AND SURFACE WASTEWATER HIGHLY CONCENTRATED IN TERMS OF MINERAL NITROGEN AND PHOSPHORUS FORMS WITH A LOW CONTENT OF ORGANIC SUBSTANCES | 2022 |
|
RU2794086C1 |
| WASTE WATERS DIP BIOLOGICAL PURIFICATION METHOD | 1993 |
|
RU2050336C1 |
| METHOD OF BIOCHEMICAL SEWAGE TREATMENT FROM ZINC IONS | 1991 |
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RU2023684C1 |
| METHOD OF REMOVING DIFFICULTLY OXIDIZED ORGANIC AGENTS FROM WASTE WATER | 1982 |
|
SU1332736A1 |
| BIOREACTOR FOR SEWAGE TREATMENT | 1993 |
|
RU2049737C1 |
