FIELD: chemistry.
SUBSTANCE: method of decontamination of sewage waters includes their treatment with hypochlorite solutions, obtained in electrolyser from mineralised industrial waters. Treatment of initial mineralised industrial water with concentration of chloride-ions from 5 to 11 g/l is carried out in diaphragm-free electrolyser with time modes of water processing 10÷30 s and density of current on electrodes 500÷750 A/m2, hypochlorite solution with concentration of active chlorine from 80 to 600 mg/l is obtained, obtained hypochlorite solution is mixed with sewage waters in ratio from 1:55 to 1:12 with correspondence of mixed product to NAC standards with provision of contact of hypochlorite solution with sewage waters for at least 30 minutes to carry out their complete decontamination.
EFFECT: invention makes it possible to utilise mineralised industrial waters in form of hypochlorite solutions, used for decontamination of sewage waters.
1 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF CLEANING NATURAL WATER | 1994 |
|
RU2090517C1 |
METHOD OF ELECTRO-CHEMICAL PROCESSING OF WATER AND DEVICE | 2012 |
|
RU2500625C1 |
PROCESS OF WATER TREATMENT WITH SODIUM HYPOCHLORITE AND FLOW ELECTROLYZER TO PRODUCE SODIUM HYPOCHLORITE | 1996 |
|
RU2100483C1 |
METHOD AND DEVICE FOR PRODUCING CHLORINE AND CHLORINE-CONTAINING OXIDIZERS | 2005 |
|
RU2315132C2 |
REMOVAL OF SULPHUR FROM MAGNETITE CONCENTRATE BY ELECTROLYTIC SOLUTIONS OF HYPOCHLORITE | 2012 |
|
RU2530040C2 |
METHOD FOR PURIFYING DRAIN WATER OF SOLID DOMESTIC WASTE POLYGONS | 2000 |
|
RU2207987C2 |
METHOD OF CLEANING AND DECONTAMINATING WATER | 1999 |
|
RU2163894C2 |
METHOD OF TREATING NATURAL WATERS | 1997 |
|
RU2121979C1 |
ELECTROLYTIC INSTALLATION FOR OBTAINING SODIUM HYPOCHLORITE | 2006 |
|
RU2349682C2 |
METHOD OF CLEANING VENTILATION EMISSIONS FROM HYDROGEN SULPHIDE | 2023 |
|
RU2818437C1 |
Authors
Dates
2015-02-10—Published
2013-07-03—Filed