Mitigation of biofouling using coatings. Year 2 annual report

Technical Report · Mon Sep 27 04:00:00 EDT 1982

OSTI ID:6636085

Meyer, A E; Baier, R E; Fornalik, M S; King, R W

Surface-energy-control coatings on sensitive analytical plates are being used inside novel flow cells to evaluate the hypothesis that biofouling films on energy-transfer equipment might be suppressed without the use of toxicants. During the 1980-81 period, coatings produced minimum biofouling in seawater for surface layers with 20 to 30 mN/m critical surface tensions. In the 1981-82 period, a successful field program at Indian Point No. 3 confirmed and extended these findings with brackish cooling water from the Hudson River. Although biofouling films with secondary silicate overlayers formed on all test surfaces, these films could be easily removed from heat exchanger grade stainless steel modified to exhibit critical surface tensions of about 22 mN/m, but not from untreated steel. It was observed that iron carbonate and iron hydroxide components might serve as transition layers from the biofouling precursor films to the glassy outermost deposits.

• Research Organization: Arvin Calspan, Buffalo, NY (USA). Applied Technology Group
• DOE Contract Number: AC02-80ER10766
• OSTI ID: 6636085
• Report Number(s): DOE/ER/10766-8; ON: DE83006097
• Country of Publication: United States
• Language: English

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