Removal of Bacteria from Coastal Seawater by Foam Separation Using Dispersed Bubbles and Surface-Active Substances(ENVIRONMENTAL BIOTECHNOLOGY)
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概要
- 論文の詳細を見る
The removal of bacteria from rearing water and washing water in aquaculture systems, aquariums and fishing port facilities is the most important means of diminishing the risk of fish diseases, improving public health and ensuring high food quality. However, there are few methods of bacterial elimination, e.g., disinfection. Thus, it is necessary to develop a technology for bacterial removal from coastal seawater. In this study, the removal efficiency for several groups of bacteria by foam separation using dispersed bubbles and surface-active substances was determined using both batch equipment and a continuous-flow unit. By batch processing with only 1 mg/l milk casein added as a surface-active substance and by supplying bubbles, viable bacteria, enterococci, Vibrio, and Salmonella-like bacteria were removed effectively at removal efficiencies of 80% or greater. In addition, suspended solids were also removed from coastal seawater. However, fecal coliforms were difficult to remove by foam separation. The removal efficiency for viable bacteria was greater than 70% using a continuous system. Bacteria were concentrated in a very small amount of generated foam and removed from the water. The foam separation using dispersed bubbles and surface-active substances is a feasible convenient technology for seawater purification as a treatment prior to membrane filtration or ultraviolet irradiation.
- 公益社団法人日本生物工学会の論文
- 2008-04-25
著者
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FURUKAWA Takashi
Department of Orthopaedic Surgery, Yamagata University School of Medicine
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YOSHIDA TERUTOYO
Department of Fisheries, Faculty of Agriculture, Miyazaki University
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Suzuki Yoshihiro
Department Of Civil And Environmental Engineering Faculty Of Engineering University Of Miyazaki
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FURUKAWA TAKASHI
Graduate School of Agriculture and Engineering, University of Miyazaki
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Hanagasaki Nobuaki
Department of Civil and Environmental Engineering, Faculty of Engineering, University of Miyazaki
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Hanagasaki Nobuaki
Department Of Civil And Environmental Engineering Faculty Of Engineering University Of Miyazaki
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Yoshida Terutoyo
Department Of Biological Production And Environmental Science Faculty Of Agriculture University Of M
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Suzuki Yoshihiro
Department Of Biological Science Graduate School Of Sciences Kanagawa University
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Furukawa Takashi
Graduate School Of Agriculture And Engineering University Of Miyazaki
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Furukawa Takashi
Department Of Civil And Environmental Engineering Faculty Of Engineering University Of Miyazaki
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Suzuki Yoshihiro
Department Of Advanced Materials Chemistry Faculty Of Engineering Yokohama National University
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Suzuki Yoshihiro
Department of Civil and Environmental Engineering, Faculty of Engineering, University of Miyazaki
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