Wastewater treatment method utilizing white rot and brown rot fungi
US7201847B1 · kind B1 · utility
3Cited by
5References
19Claims
0Family size
Inventors
Key dates
| Filing date | Jan 5, 2005 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | May 15, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/928
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method of treating wastewater sources such as sewer systems or those from pulp and paper mills which contain biomass waste involves adding white rot fungi in the presence of glucose. While glucose may be directly added to the wastewater source, it has been found to be more economical to reduce or substantially remove color from the wastewater by additionally adding brown rot fungi in the presence of cellulose and hemi-cellulose. The addition of bacteria has also been found helpful to improve the reduction in color, biological oxygen demand, as well as chemical oxygen demand in wastewater sludge reduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.