Method of treatment of partially hydrolyzed biosolids
US11420890B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2020 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Dec 13, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/20
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method of processing enhanced biosolids from a wastewater treatment plant to produce an output mixture. The method includes providing one or more volumes of an input mixture that has an input mixture viscosity. The input mixture includes the enhanced biosolids, which have been subjected to shear forces and mixed in a mixing vessel. The enhanced biosolids are partially hydrolyzed biosolids with an input solids content between 4% and 16% by weight of the input mixture. The input mixture also includes sufficient process liquid to result in the output mixture having an output solids content between 3% and 13% by weight of the output mixture. The input mixture is stored in a storage vessel in which the input mixture is subjected to anaerobic conditions and hydrolysis over a predetermined tie period, to form the output mixture having an output mixture viscosity that is less than the input mixture viscosity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.