FIELD: chemical treatment of sewage. SUBSTANCE: process includes the treatment of sewage, pH 7-8, with extracting agent such as butyl acetate in 100-200: 1 ratio by volume with subsequent dispersing the resulting mixture under stirring for at least 5 min. Thereafter, the reaction mixture is acidified to adjust its pH ≅ 1. Once flocculating started, the reaction mixture is treated with sodium hydroxide, adjusting pH 6-7. EFFECT: allows 98 % purification of sewage to attain for 1 cycle.
| Title | Year | Author | Number |
|---|---|---|---|
| SORBENT FOR EXTRACTION OF INORGANIC AND ORGANIC POLLUTANTS FROM MEDIUM AND A METHOD OF EXTRACTION OF INORGANIC AND ORGANIC POLLUTANTS FROM MEDIUM USING THIS SORBENT | 1993 |
|
RU2056935C1 |
| METHOD FOR PREPARING WHIPPED FOOD PRODUCT | 1994 |
|
RU2077223C1 |
| METHOD FOR SELECTIVE EXTRACTION OF ANION-ACTIVE SURFACTANTS FROM SEWAGE | 1993 |
|
RU2054389C1 |
| METHOD OF EXTRACTING CRESOLS FROM ACID AQUEOUS SOLUTIONS | 0 |
|
SU1364606A1 |
| METHOD OF PURIFYING POLYISOBUTYLENE FROM CATALYST TO OBTAIN COAGULANT SOLUTION | 2023 |
|
RU2815228C1 |
| PROCESS FOR REMOVING ACID DYES FROM WASTE WATER | 0 |
|
SU1745684A1 |
| METHOD FOR PURIFYING EFFLUENTS FROM PRIMARY WOOL PROCESSING FACTORIES | 0 |
|
SU1010020A1 |
| EXTRACTION METHOD OF CLEANING WASTE WATER FROM AROMATIC AMINES | 2009 |
|
RU2431606C2 |
| METHOD OF ISOLATION OF CHENODEOXYCHOLIC ACID, LIPID FRACTION CONTAINING CHOLESTEROL AND FATTY ACID FRACTION | 1992 |
|
RU2034849C1 |
| METHOD FOR PRODUCTION OF LAPPACONITINE HYDROBROMIDE AND LAPPACONITINE | 2016 |
|
RU2641967C1 |
