Automatic activated sludge control system
US4168233A · kind A · utility
8Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1978 |
| Grant date | Sep 18, 1979 |
| Priority date | — |
| Expiry date | Aug 16, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/042
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for automatically extracting samples of sludge and mixed liquor from a sewage treatment plant, delivering them to a testing settleometer jar and centrifuge and measuring the rate of settling of sludge and suspended solids in the test samples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.