Application of fermentation broth of potamogeton crispus in the removal of nitrogen in constructed wetlands
US9994468B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2014 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Dec 18, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
It discloses an application of a fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands. The fermentation broth of Potamogeton crispus is prepared by the following method: collecting, draining off and grinding the Potamogeton crispuses, then, placing the grinded Potamogeton crispuses into a fermentation tank, mixing them with domesticated fermented sludge, and then adding water and fermenting the mixed liquor at a constant temperature, removing the residue of the Potamogeton crispuses, and obtaining the prepared fermentation broth of Potamogeton crispus. The present invention also discloses an application of the fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.