Process for nitrate reduction from water
US9670075B1 · kind B1 · utility
8Cited by
1References
11Claims
0Family size
Inventor
Key dates
| Filing date | Aug 8, 2014 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Sep 4, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system and process for nitrate reduction from a water source. The process includes the steps of passing nitrate contaminated water through a strong acid cation exchange resin to reduce cations. The effluent is thereafter passed through a weak base anion exchange resin in order to reduce nitrate content. The strong acid cation exchange resin is regenerated, and the weak base anion exchange resin is also regenerated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.