Process for treating waste water
US5976384A · kind A · utility
Inventors
Key dates
| Filing date | Apr 24, 1998 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Apr 24, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/50
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for treating bacteria laden effluent from a sewage treatment digester to condition the effluent for release into the environment includes the steps of thoroughly mixing the effluent with a bactericide, conveying the mixed effluent to a reaction zone to completely kill any bacteria entrained in the waste water to provide a substantially bacteria free effluent, mixing an oxidant with the bacteria free effluent, maintaining the mixture for a sufficient time to permit substantially complete oxidation and neutralization of entrained bactericide, and discharging the treated effluent into the environment. In an alternative procedure the treated effluent is passed through a neutralizing filtration step to neutralize any active bactericide before the effluent is discharged to the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.