Rag seeding in wastewater treatment systems
US11707704B2 · kind B2 · utility
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1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2021 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Jul 18, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a wastewater treatment plant a rag seeding tank is included in a process drain to collect hair and fibers which have passed through headworks of the plant. The hair and fibers tend to join together into large masses downstream of the headworks and can be damaging to process zones, particularly membrane zones. The rag seeding tank includes cartridges filled with surfaces that fibers and hair will attach to, so that hair/fiber rags grow in the seeding tank and are removed therefrom rather than causing problems downstream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.