Water treatment system
US6962657B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2001 |
| Grant date | Nov 8, 2005 |
| Priority date | — |
| Expiry date | Dec 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S422/902
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A water treatment system for removing hard ions from source water. The water treatment system is of the type that includes a pair of ion-exchange water softener tanks connectable to a source of pressurized water and with a water system to supply softened water to the water system, the tanks each being capable of regeneration by flushing with a regeneration solution to replenish depleted ions. A process for preventing system failure due to salt crystallization includes flowing water during brine replenishment from a second nozzle and a first nozzle at a defined ratio. The first nozzle diluted the brine in a reservoir after regeneration cycle is complete. The second nozzle replenishes brine by flowing water directly onto a salt material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.