System and method for purifying process water
US9944538B2 · kind B2 · utility
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60References
27Claims
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Key dates
| Filing date | Dec 21, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Dec 21, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/129
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In accordance with one embodiment, a process is described for a water treatment process in which process water is treated with recycled biochar. In accordance with one aspect, process water is passed through activated carbon generated by the biomass pyrolysis and gasification. In accordance with another aspect, the process water is treated to expel gaseous compounds within the process water. In this manner both inorganics, light organics and heavy organics can be removed from the process water. No fermentation is involved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.