Polyhedral spherical denitrifying packing and use method thereof
US12221368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2023 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Oct 24, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Provided are a polyhedral spherical denitrifying packing and a use method thereof. An outer surface of the polyhedral spherical denitrifying packing is composed of a plurality of conical pieces, and each of the conical pieces has a vacancy. The method for using the packing above includes: placing the polyhedral spherical denitrifying packing in packing area; adding inoculation sludge into the packing area, and forming biofilm; feeding raw sewage into the packing area through a water inlet of the denitrification reactor, subjecting the sewage to denitrification reaction when flowing through the packing area with the biofilm; refeeding a part of sewage discharged from the packing area into the packing area through the water inlet of the denitrification reactor via a circulating tube; making the other part of the sewage discharged from the packing area flow into clarification area, and discharging through a water outlet of the denitrification reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.