Anodically polarized surface for biofouling and scale control
US4345981A · kind A · utility
29Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1981 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Feb 23, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S204/09
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Biofouling and scale control in conductive aqueous systems is effected on metal, preferably valve metal such as titanium, surfaces on which such fouling normally occurs by applying thereto a stable electrocatalytic coating, anodically polarizing said valve metal coating such that essentially only oxygen is evolved at the surface thereof, preferably at a rate of at least about 4.66 millimoles per square meter per hour without evolution of any chlorine. Periodic current reversal is effected to forestall biofouling upon any cathode utilized in implementing the instant invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.