Apparatus and method for treating hydrogen sulfide and ammonia in wastewater streams
US11383995B2 · kind B2 · utility
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2References
19Claims
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Key dates
| Filing date | Mar 28, 2019 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Oct 31, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process of removing contaminants and concentrating wastewater includes delivering wastewater from a source of wastewater to a hydrogen sulfide removal device, mixing an oxidant with the filtered wastewater in the hydrogen sulfide removal device to produce a hydrogen sulfide lean effluent, delivering the hydrogen sulfide lean effluent to a direct contact concentrator, and evaporating a portion of the hydrogen lean effluent in the direct contact evaporator to produce a slurry and an exhaust gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.