FIELD: chemistry.
SUBSTANCE: invention can be used to treat water in pharmaceutical and food industry. The method of purifying waste water from heavy metals involves passing water in dynamic conditions through a column with a mixture of two modified sorbents in ratio of 2:1. The first sorbent is obtained by immobilisation on anionite AV-17 2-{2-(α-2-oxy-5 sulphophenylazo}-benzylidine hydrazine of benzoic acid, and the second by immobilisation on silica gel which is treated with cetylpyridinium chloride, 2,6,7-trioxyphenylfluorone.
EFFECT: invention enables simultaneous extraction of cadmium, lead, copper, zinc, chromium and manganese, wherein 100 dm3 of water is purified with 20 g of a sorbent mixture in one hour.
1 tbl, 1 ex
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|---|---|---|---|
| METHOD OF CONCENTRATING AND DETECTING COPPER, LEAD AND CADMIUM | 2008 |
|
RU2361660C1 |
| METHOD OF EXTRACTION OF CADMIUM AND ZINC FROM NATURAL AND WASTEWATER | 2016 |
|
RU2622204C1 |
| METHOD OF PURIFICATION OF WASTE WATERS AND PROCESS SOLUTIONS FROM COPPER | 2018 |
|
RU2686930C1 |
| METHOD OF PURIFYING WASTE WATER FROM METAL IONS | 2018 |
|
RU2686228C1 |
| METHOD OF PREPARING SORBENT TO ISOLATE METALS FROM SOLUTIONS | 1991 |
|
RU2104779C1 |
| METHOD OF ADDITIONAL TREATMENT OF SEWAGE FROM HEAVY METAL IONS | 1992 |
|
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| BACTERIAL ASSOCIATION OF GORDONIA PARAFFINIVORANS AND RHODOCOCCUS RUBER - ACTIVE BIOACCUMULATOR OF HEAVY METALS | 2023 |
|
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| METHOD OF TREATING DRAINAGE EFFLUENT AND DEVICE TO THIS END | 2009 |
|
RU2401804C1 |
| METHOD FOR EVALUATION OF TREATMENT DEGREE OF SEWAGE WATERS FROM CHROME, ZINC AND COPPER | 2003 |
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RU2258676C2 |
| METHOD OF TREATING SEWAGE WATERS TO REMOVE IONS OF HEAVY METALS | 1994 |
|
RU2125972C1 |
