Water treatment processes and devices utilizing hydrodynamic cavitation
US7247244B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2004 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Apr 5, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2101/36
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Processes and devices associated with reducing the amount of organic substances in a fluid are described. In one example method, oxidizing agents may be introduced into a local constriction of flow in a flow-through chamber as the fluid is flowed therethrough. Cavitation bubbles which contain and/or are associated with the oxidizing agents may form. Collapse of the cavitation bubbles may produce pulses of ultraviolet light, thereby ionizing the oxidizing agents, producing hydroxyl radicals, and degrading and/or oxidizing the organic substances in the fluid. An example device may include a flow-through chamber including a local constriction of flow, a port configured to introduce oxidizing agents into the local constriction of flow, and may include an area configured to collapse the cavitation bubbles, thereby initiating events leading to degradation and/or oxidation of organic substances in a fluid flowed through the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.