Waste treatment process for coal gasification fly ash
US9169146B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2012 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Apr 7, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/212
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Disclosed is an improved water treatment process that operates on a continuous flow of fluids that are subjected to hydrodynamic waves, acoustic ultrasonic waves in combination with injected ozone and electro chemical treatment. The treatment system provides a cost efficient and environmentally friendly process and apparatus for cleaning and recycling fluids as contaminated as coal slurry, as well as other types of fluids having various levels of contaminants such as aerobic and anaerobic bacteria and suspended solids. The volatile organic compounds are reduced to an acceptable level without the use of acids, ion exchange materials, or anti scaling chemicals which is of economical and environmental significance and benefit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.