생태와환경 (Korean Journal of Ecology and Environment)

  • 제47권4호
  • /
  • Pages.312-318
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  • 2014
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  • 2288-1115(pISSN)
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  • 2288-1123(eISSN)
한국수생태학회 (The Korean Society of Limnology)
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반응표면분석을 이용한 패류의 부영양수 유기물 제어능 연구

Response Surface Methodology for Optimization of the Removal of Organic Matters in Eutrophic Waters by Korean Freshwater Bivalves

  • 최환석 (조선대학교 생명화학고분자공학과) ;
  • 남귀숙 (한국농어촌공사 농어촌연구원) ;
  • 김민섭 (국립환경과학원 환경측정분석센터) ;
  • 신현재 (조선대학교 생명화학고분자공학과) ;
  • 박명환 (건국대학교 환경과학과) ;
  • 황순진 (건국대학교 환경과학과) ;
  • 김백호 (한양대학교 생명과학과)
  • 투고 : 2014.11.23
  • 심사 : 2014.12.22
  • 발행 : 2014.12.31
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초록

부영양화 호소수에 대한 국내 서식 펄조개(A. woodiana)의 유기물 제어 실험 결과, 펄조개 30개체를 대상으로 패각 크기 4.3~15.5 cm (평균 9.54 cm)에 따른 유기물 여과율은 $0.08{\sim}0.86L\;g^{-1}\;h^{-1}$, 단위 건중량당 펄조개의 여과율은 $0.09L\;g^{-1}\;h^{-1}$를 나타내었다. 펄조개의 배설물 생산량 (PF)은 $0.00{\sim}11.10mg\;g^{-1}\;h^{-1}$, 단위 건 중량당 배설물 생산량은 $0.37mg\;g^{-1}\;h^{-1}$를 나타내었다. 또한, 클로로필-a와 부유물질 제거율(RA, %)은 느린 유속에서 82.1%, 71.0% 빠른 유속에서는 65.4%, 57.5%의 제거율을 나타냈고, 반응표면분석 결과, 패각 크기는 14.3~15.6 cm, 유속은 $22{\sim}30Lh^{-1}$ 구간에서 여과율 $6.21L\;mussel^{-1}\;d^{-1}$의 최적값을 나타내었다. 또한, 배설물 생산능은 패각 크기는 14.3~16.3 cm, 유속은 $36{\sim}44Lh^{-1}$ 구간에서 배설물 생산이 $4.2mg\;g^{-1}\;d^{-1}$의 최적값을 나타내었다.

This study was conducted to establish models of filtrating rate and production of feces of a native freshwater bivalve, Anodonta woodiana, on removal organic matters in eutrophic waters. Among the applied shell size (4.3~15.5 cm), the filtrating rate and production of feces of Anodonta woodiana was $0.08{\sim}0.86L\;g^{-1}\;h^{-1}$ (average $0.24L\;g^{-1}\;h^{-1}$), $0.00{\sim}11.10mg\;g^{-1}\;h^{-1}$ (average $0.94mg\;g^{-1}\;h^{-1}$), respectively. In two different water current (high $48Lh^{-1}$, low $24Lh^{-1}$), the filtrating rate of Chl-a was $0.02{\sim}0.10L\;g^{-1}\;d^{-1}$ (average $0.05L\;g^{-1}\;d^{-1}$), $0.02{\sim}0.11L\;g^{-1}\;d^{-1}$ (average $0.07L\;g^{-1}\;d^{-1}$) and the removal rate was 65.4%, 82.1%, respectively. Response surface methodology, with a central composite design comprising 3 levels and 2 variables, was used to identify the optimal removal condition of shell length, water current and filtrating rate or feces production by bivalves. The optimum removal conditions were found that had optimized $6.21L\;mussel^{-1}\;d^{-1}$ at shell length 14.3~15.6 and water current $22{\sim}30Lh^{-1}$. The optimal conditions of production of feces ($4.2mg\;g^{-1}\;d^{-1}$) by freshwater mussels were shell length 14.3~16.3 cm and water current $36{\sim}44Lh^{-1}$.

키워드

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