Navigation Links
Silicone foul release coatings show promise to manage invasive mussels at water facilities
Date:8/22/2012

DENVER - The Bureau of Reclamation has found that silicone foul release coatings may be an important tool for mitigating invasive quagga and zebra mussels' impacts to water and hydropower infrastructure. Allen D. Skaja, Ph.D., PCS, of Reclamation's Technical Service Center tested more than 50 coatings and metal alloys over three years at Parker Dam on the Colorado River.

"The silicone foul release coatings were found to reduce the rate of mussel settlement, and any attached mussels were easy to remove," said Skaja. "In many cases, it was found water flowing at 0.1 feet per second provided sufficient force to remove mussel colonies."

Parker Dam provided an excellent field test site to evaluate coatings in still and flowing water because the quagga and zebra mussels infesting this location reproduce throughout the year and have a high growth rate.

The coatings and metal alloys tested can be divided into six broad categories: conventional epoxies (no fouling control), foul release coatings, antifouling coatings, fluorinated powdered coatings, metallic coatings and metal alloys.

The coatings were tested in still water and flowing water. For still water, three, 1-foot-square steel plates were tied on a nylon rope and lowered into water approximately 50 feet deep near the face of the dam. For the flowing conditions, one 18-inch by 24-inch coated floor grate with 1-inch spacing was suspended 40 feet below the water surface downstream from the forebay trashrack structure.

One problem with silicone foul release coatings is they are not that durable. Initial research found the silicone foul release coatings were soft and were easily damaged by floating debris or mechanical abrasion, such as a trash rack being cleaned. Further research is already underway to find a silicone foul release technology that will meet the abuse coatings on facilities must take.


'/>"/>
Contact: Peter Soeth
psoeth@usbr.gov
303-445-3615
Bureau of Reclamation
Source:Eurekalert

Page: 1

Related biology news :

1. Medbox, Inc. Releases 2nd Quarter Financials
2. The 3rd BGI Bioinformatics Software and Data Release Conference
3. University of Tennessee professor releases weight management product
4. NSF releases report detailing nationwide and state-by-state R&D activities
5. SF State researcher releases first results from nationwide bee count
6. Atmospheric scientists release first bottom-up estimates of Chinas CO2 emissions
7. New release of Web-based resource resolves confusion over plant names
8. Worlds largest release of comprehensive human cancer genome data helps speed discoveries
9. AAO-HNS releases updated Clinical Indicators
10. Spanish researcher releases a video showing a beetle from the inside
11. First-ever release of endangered burying beetles in Missouri
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/9/2016)... , March 9, 2016 ... identified that more than 23,000 public service employees either ... been receiving their salary unlawfully.    --> ... government identified that more than 23,000 public service employees ... had been receiving their salary unlawfully.    --> ...
(Date:3/3/2016)... 3, 2016  2016FLEX, organized by FlexTech, a ... advancements in flexible, hybrid and printed electronics. More ... - have gathered for short courses, technical session, ... electronics. The Flex Conference celebrates its 15 th ... R&D organizations, and universities contributing to the adoption ...
(Date:3/1/2016)... , March 1, 2016 ... the addition of the  "Global Biometric ...  report to their offering. --> ... addition of the  "Global Biometric Access ... to their offering. --> ...
Breaking Biology News(10 mins):
(Date:5/3/2016)... ... May 03, 2016 , ... Nashville Fertility ... laboratories. A contingency of reproductive endocrinologists, including Dr. George Hill at ... and to help them build families. , Ovation Fertility is a nationwide network ...
(Date:5/2/2016)... ... May 02, 2016 , ... Meister ... mind, the fresh look and added functionality give the agricultural world a taste ... a dynamic shift in agriculture – from precision farming via satellites and Unmanned ...
(Date:5/2/2016)... ... 02, 2016 , ... F.E.E.D. Co., the Feline Environmental Enrichment ... veterinarian-designed product for indoor cats. The NoBowl Feeding System replaces the bowl with ... way nature intended. NoBowls make cats happy and healthy. , Since being introduced ...
(Date:4/29/2016)... ... April 29, 2016 , ... Proove Biosciences, Inc ., ... the launch of the Proove Health Foundation . The Foundation is a ... the use of personalized medicine for tackling the nation’s most-pressing healthcare epidemics. As ...
Breaking Biology Technology: