Method for preparing carbon source for wastewater treatment by using kitchen waste
US11993799B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2023 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Nov 1, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2305/06
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for preparing a carbon source for wastewater treatment by using kitchen waste, comprises: adding a complex microbial inoculant into the kitchen waste; and phase-change degrading the kitchen waste into a phase-change liquid under aerobic fermentation of the complex microbial inoculant; wherein the phase-change liquid is the carbon source for wastewater treatment; the complex microbial inoculant comprises: a microbial agent comprising aerobic bacteria; and an excipient comprising an Fe-based MOF (metal-organic framework) nanocomposite. According to the method, the kitchen waste is treated under aerobic fermentation to prepare the carbon source, a carbon-nitrogen ratio is greater than 40, and the carbon source is used to supplement a carbon source in a sewage treatment process of a sewage plant, which significantly improves nitrogen and phosphorus removal effects of sewage treatment in the sewage plant, and provides theoretical foundation and basis for resource utilization of the kitchen waste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.