Tagged epichlorohydrin-dimethylamine copolymers for use in wastewater treatment
US5705394A · kind A · utility
13Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1995 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Dec 15, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention comprises a method of determining the concentration of a water soluble polymeric treating agent added to wastewater treatment system. The method comprises several steps including dosing the body of water with a predetermined concentration of a treating agent having a fluorescent tag covalently bonded to the treating agent, removing a sample of the water containing the tagged treating agent, analyzing the emissivity of the sample to measure the concentration of the treating agent in the sample and adjusting the concentration of the treating agent accordingly to fit within a predetermined concentration range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.