Mixed immiscible liquids collection, separation, and disposal method and system
US5679258A · kind A · utility
Inventor
Key dates
| Filing date | Jul 10, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Jul 10, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D17/045
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system to collect by vacuum conveyance, separate, and discharge two mixed immiscible liquids with different specific gravities comprising a grit, sediment, particulate, and floating debris removal/collection chamber 11, vacuum tank 51, optional heavy phase supplemental separation stage 47A, and optional light phase supplemental separation stage 47B. Vacuum tank 51 is under a constant regulated vacuum, which sucks mixed immiscible liquids with different specific gravities from their respective remote source(s) through conduit(s) connected to vacuum tank 51. Collection conduits can have manually, mechanically, or electro-mechanically controlled valves at their source ends. Any grit, sediment, particles, floatable debris, and entrained air in the collection conduits is removed from the mixed liquid stream prior to undergoing any phase separation stages. Initial phase separation occurs automatically in vacuum tank 51, which provides quiescent conditions for gravity separation of mixed immiscible liquids. Gravity separation is further enhanced by low grade dissolved air flotation separation which is induced by the vacuum in vacuum tank 51. Additional phase separation can occur, if nec…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.