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:3/22/2017)... Lithuania , March 21, 2017   ... and object recognition technologies, today announced the release ... kit (SDK), which provides improved facial recognition using ... cameras on a single computer. The new version ... to improve accuracy, and it utilizes a Graphing ...
(Date:3/22/2017)... 21, 2017 Vigilant Solutions , a ... enforcement agencies, announced today the appointment of retired FBI ... public safety business development. Mr. Sheridan brings ... including a focus on the aviation transportation sector, to ... position, Mr. Sheridan served as the Aviation Liaison Agent ...
(Date:3/20/2017)... , March 20, 2017 PMD Healthcare ... personal spirometer and Wellness Management System (WMS), a remote, ... Founded in 2010, PMD Healthcare is a Medical Device, ... a mission dedicated to creating innovative solutions that empower ... With that intent focus, PMD developed the first ever ...
Breaking Biology News(10 mins):
(Date:7/20/2017)... ... July 20, 2017 , ... VIC Technology Venture Development™ ... board of directors. This addition continues to strengthen and diversify VIC’s board. , ... and Chairman. “He is a highly accomplished business executive with a broad range of ...
(Date:7/20/2017)... and PLYMOUTH, Minn., July 20, 2017   KCNQ2 ... personalized genetic evaluations company, today announced that they ... investigating a genetic mutation implicated in KCNQ2 epileptic ... partnership for a second case involving an additional ... KCNQ2 Cure Alliance and Pairnomix entered into a ...
(Date:7/20/2017)... , ... July 20, 2017 , ... ... to make clinical trial sites and study participants truly unified. TrialKit, a native ... (FDA 21 CFR Part 11) research studies entirely on mobile devices. With TrialKit, ...
(Date:7/18/2017)... , ... July 18, 2017 , ... Sourcing custom glass ... your needs and has the capabilities to properly execute your job can take many ... is a sourcing portal designed to showcase the company’s capabilities and core ...
Breaking Biology Technology: