FIELD: technology of water and air purification.
SUBSTANCE: invention relates to water desalination by electrodialysis in an electrodialyzer with ion-exchange membranes and can be used in water treatment. Electrochemical installation for desalination of highly mineralized water consists of two electrolytic cells: a desalination electrolytic cell and a pH correction cell, as well as from a settling tank for separating precipitate. PH correction electrolyser comprises a current source, electrode chambers with anode and cathode installed in them and cation-exchange ones alternating between them, anion-exchange and bipolar membranes separated by separating inserts, forming alternating desalination chambers, alkaline flow chambers and acid flow chambers.
EFFECT: increased service life of electrodialysis device, increased reliability and operational characteristics of water treatment equipment.
1 cl, 1 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF SEPARATING AMINO ACIDS AND CARBOHYDRATES BY ELECTRODIALYSIS | 2009 |
|
RU2426584C2 |
| DRINKING WATER PRODUCTION PLANT | 1995 |
|
RU2088317C1 |
| MULTICHAMBER ELECTRODIALYSIS APPARATUS FOR DEEP DEMINERALISATION | 2007 |
|
RU2380145C2 |
| METHOD OF OBTAINING CARBOXYLIC ACID AND ALKALI | 1991 |
|
RU2016636C1 |
| ELECTRODIALYZER FOR DESALINATION OF WATER | 0 |
|
SU971403A1 |
| METHOD FOR RECOVERING IODINE | 1995 |
|
RU2112080C1 |
| METHOD OF DEMINERALIZATION OF WATER IN AN ELECTRODIALYZER | 2003 |
|
RU2230036C1 |
| RECOVERY METHOD OF LITHIUM CHLORIDE, DIMETHYLACETAMIDE AND ISOBUTYL ALCOHOL OR LITHIUM CHLORIDE AND DIMETHYLACETAMIDE FROM PROCESS SOLUTIONS FOR PRODUCTION OF PARA-ARAMID FIBRES | 2014 |
|
RU2601459C2 |
| METHOD OF CONCENTRATING BASIC AMINO ACIDS THROUGH ELECTRODIALYSIS | 2009 |
|
RU2412748C2 |
| ELECTRODIALIZER | 1993 |
|
RU2070427C1 |
