Method for controlling treatment chemicals in aqueous systems
US6153110A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1999 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | May 17, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method is provided for monitoring and controlling the level of treatment chemicals in an aqueous system, such as a cooling water system or boiler system, through the direct measurement of one or more chemically active polymers. Polymers typically function as scale inhibitors and dispersants in a water treatment system and exist in aqueous systems in both free and bound states, the free and bound states together comprising the total polymer present in the aqueous system. The ratio of free polymer level to total polymer level defines the polymer inhibition efficiency of the system and provides an indication of the effectiveness of the water treatment program. The total polymer level may be used to determine the volume of treatment chemicals added to the system, while the free polymer to total polymer ratio indicates the dosage required to maintain system performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.