Method for mixing industrial waste water within a gravity settling tank
US10040004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2015 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | May 7, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for static mixing in a waste water settling tank to increase the percentage of recovery of entrained solids from the waste water comprising a settling tank having a hopper bottom defining a sludge hopper, a deflector dome centrally disposed within the space contained in the hopper bottom, and an inlet pipe for introduction of waste water containing second entrained solids into the settling tank and having a discharge outlet in proximity to the underside of the deflector dome. Influent waste water is directed vertically upward into the center of the deflector dome which distributes the influent radially into contact, preferably turbulent, with previously introduced waste water containing first entrained solids to cause coalescence of the first and second entrained solids to form larger particles having increased settling velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.