Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Anaerobic/Aerobic Biological Reaction Characteristics of the Marine Products Industry Wastewater

수산물가공폐수의 혐기.호기 생물학적 반응특성

  • Choi, Yong-Bum (Department of Environmental Prevention Engineering Kangwon Province College) ;
  • Kim, Gau-You (Department of Food Science and Technology in Animal Kangwon National University) ;
  • Kwon, Jae-Hyouk (Department of Environmental Prevention Engineering Kangwon National University)
  • 최용범 (강원도립대학 환경방재과) ;
  • 김거유 (강원대학교 동물식품응용과학과) ;
  • 권재혁 (강원대학교 환경방재공학)
  • Published : 2008.12.31
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Abstract

This study was undertaken to establish the biological reaction characteristics of the marine products industry wastewater which contains high concentrations of organic matter and saline. As the S/I is varied from 0.3 to 1.2, the results were follows : the observed ultimate anaerobic biodegradability varied from 72.0 to 88.0%, the first order reaction rate varied from 0.1735 to $0.3420\;day^{-1}$ and the second order reaction rate varied from 0.0132 to $0.0295\;day^{-1}$. When S/I was 0.9, the first order reaction rate had a maximum value, but the variations of the second order reaction rate were less than 1st-order reaction rate. When the operation time exceeded 2 days the gas production rapidly increased. The source of this rapid increase was due to that the activity of the granular sludge used in this study being faster than that of conventional sludge. Under aerobic condition, the characteristics of organic matter were as follows: the marine industry wastewater used in this study contained about 81% of biodegradable matter, and it was divided into readily biodegradable COD(Ss), slowly biodegradable COD(Xs), soluble COD(Si) and inert suspended COD (Xi). The percentages of each COD were 87.3%, 23.9%, 6.4% and 12.4% respectively.

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