Apparatus for venting a pressurized bubble contactor
US5296201A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Nov 6, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7898
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A venting apparatus for a bubble contactor used to dissolve oxygen in water prior to introducing the water into a biological fluid bed reactor that, under aerobic conditions, removes potentially combustible contaminants from the water for removing fuel constituents from water. The venting apparatus includes a float-operated valve wherein the float senses the existence of a gas space in the upper part of the bubble contactor and is operable to open the valve to vent the gas space. Such a space is potentially capable of supporting a combustible mixture of oxygen and fuel constituents which could be ignited by a source, such as a static electric discharge. The valve remains closed under normal conditions when no significant gas space exists to prevent the needless waste of oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.