Waste water-treatment process
US5382369A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1992 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Jul 17, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D21/2438
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A water-treatment process which simultaneously performs degritting, degreasing, coagulation, flocculation and settling. The steps include breaking down into two elementary steps, at least least one of the degritting and degreasing functions and, simultaneously performing at least one of the following associated steps: PA1 coarse degritting and coagulation of untreated water; PA1 fine degritting and a first step for coalescence of grease particles, and high-energy flocculation; PA1 a second step for coalescence of the grease particles and low-energy flocculation, and PA1 separating the greast particles and commencing a settling operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.