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J. Ocean Eng. Technol. 2009;23(6):39-43.    

Preliminary Experimental Study on Biofouling in Real Sea Environment
Jung Dong-Ho,Kim Ah-Ree,Moon Deok-Soo,Lee Seung-Won,Kim Hyeon-Ju,Ham Yun-Ho
Ocean Engineering Research Department MOERI/KORDI,Ocean Engineering Research Department MOERI/KORDI,Ocean Engineering Research Department MOERI/KORDI,Ocean Engineering Research Department MOERI/KORDI,Ocean Engineering Research Department MOERI/KORDI
실해역 환경에서 생물부착에 관한 기초실험 연구
정동호,김아리,문덕수,이승원,김현주,함윤호
한국해양연구원/해양시스템안전연구소,한국해양연구원/해양시스템안전연구소,한국해양연구원/해양시스템안전연구소,한국해양연구원/해양시스템안전연구소,한국해양연구원/해양시스템안전연구소,한국해양연구원/해양시스템안전연구소
© 2009 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Biofouling, Real sea environment, Deep and surface seawater, Chlorophyll-a
핵심용어: 생물부착, 실해역 환경, 해양심층수와 표층수, 클로로필-a
Abstract
A flow and low temperature of deep seawater the biofouling properties in a seawater environment of different materials, such as a steel pipe, polyethylene pipe, and nylon net, used for ocean industries. Experiments in a real sea environment were performed to grasp the quantitative and qualitative biofouling from diatoms attached to materials by measuring the Chlorophyll-a density. Experimental samples were placed under five types of ocean environmental conditions and analyzed every month for five months. It is shown that the biofouling by diatoms was strongly affected by the seawater temperature for all of the experimental samples. It was found that diatoms mainly adhered to the nylon net, while crustaceans prefer polyethylene, under a high temperature condition. It is believed that the biofouling properties are strongly related to the surface roughness of a material. The biofouling under the low temperature condition of deep seawater was rare and stable for the experimental periods. The inside of a pipe conveying deep seawater can be presumed to remain clear without biofouling on the condition of a flow and low temperature of deep seawater.


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