FIELD: water purification. SUBSTANCE: method consists in softening water using sodium cation treatment, evaporating softened water in evaporators and regeneration of sodium-cationite filters with acidified blowing water from evaporators containing 20-50% of worked out regeneration solution preliminarily freed of hardness ions. Method is distinguished with performing recarbonization of evaporator blowing water with evaporator blown off gas mixture. EFFECT: reduced consumption of acid for acidification of blowing water. 3 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR THERMOCHEMICAL DESALTING OF NATURAL AND WASTE WATERS | 1998 |
|
RU2137722C1 |
| PROCESS FOR REGENERATING NA-CATION-EXCHANGE FILTERS | 0 |
|
SU929580A1 |
| METHOD OF TREATMENT OF WATER | 2000 |
|
RU2195432C2 |
| PROCESS FOR THERMAL DESALINATION OF FRESH WATER | 0 |
|
SU939397A1 |
| METHOD OF WATER DEMINERALIZING | 0 |
|
SU1768521A1 |
| METHOD OF TREATING EFFLUENTS FROM CATION FILTERS IN DESALINATION AND SOFTENING OF WATER | 0 |
|
SU948891A1 |
| METHOD OF WATER SOFTENING | 0 |
|
SU710963A1 |
| PROCESS FOR SOFTENING WATER FOR DESALINATION AND REFILLING OF THERMAL UTILITY NETWORK | 0 |
|
SU939396A1 |
| METHOD OF MINERALIZED WATER PURIFICATION | 0 |
|
SU823315A1 |
| METHOD FOR PURIFYING WATER | 0 |
|
SU948892A1 |
