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:6/22/2016)... , June 22, 2016 On Monday, ... call to industry to share solutions for the Biometric ... U.S. Customs and Border Protection (CBP), explains that CBP ... are departing the United States , ... and to defeat imposters. Logo - ...
(Date:6/16/2016)... June 16, 2016 The ... expected to reach USD 1.83 billion by 2024, ... Research, Inc. Technological proliferation and increasing demand in ... expected to drive the market growth. ... The development of advanced multimodal techniques for ...
(Date:6/9/2016)... 9, 2016 Paris Police ... video security solution to ensure the safety of people and ... during the major tournament Teleste, an international technology ... services, announced today that its video security solution will be ... back up public safety across the country. The system roll-out ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... FRANCISCO , June 23, 2016   EpiBiome ... has secured $1 million in debt financing from Silicon ... ramp up automation and to advance its drug development ... its new facility. "SVB has been an ... beyond the services a traditional bank would provide," said ...
(Date:6/23/2016)... , June 23, 2016 Apellis ... Phase 1 clinical trials of its complement C3 ... single and multiple ascending dose studies designed to ... (PD) of subcutaneous injection in healthy adult volunteers. ... (SC) either as a single dose (ranging from ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... the Pennsylvania Convention Center and will showcase its product’s latest features from June ... be presenting a scientific poster on Disrupting Clinical Trials in The Cloud during ...
(Date:6/23/2016)... 23, 2016 ReportsnReports.com adds ... to its pharmaceuticals section with historic and forecast ... much more. Complete report on the ... profiling 15 companies and supported with 261 tables ... . The Global Cell Culture ...
Breaking Biology Technology: