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포말분리기를 이용한 해수로부터 양식 폐기물 제거; I. 초기 단백질 농도 영향
The Removal of Aquacultural Wastes by Foam Separator from Sea Water ; I.The Effect of Initial Protein Concentration
부경대학교 화학공학과, 부산 1부경대학교 생물공학과, 부산
Department of Chemical Engineering, Pukyong National University, Pusan, Korea 1Department of Biotechnology & Bioengineering, Pukyong National University, Pusan, Korea
khsuh@mail.pknu.ac.kr
HWAHAK KONGHAK, October 2000, 38(5), 745-752(8), NONE
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Abstract
본 연구에서는 공기부상식 포말분리기를 제작하여 해수 속의 단백질, 부유고형물, 화학적 산소 요구량, 탁도, 암모니아성 질소와 같은 양식 폐기물의 연속 제거운전을 수행하여 유입 단백질 농도에 따른 양식 폐기물의 제거 특성 및 포말분리기의 용존산소 공급 능력을 검토하였다. 단백질 제거속도는 초기 단백질 농도의 증가에 따라 증가하다가 최대치에 접근하는 형태로서 Langmuir 등온 흡착식과 잘 일치하였으며 총 부유고형물, 화학적 산소 요구량, 탁도 및 총 암모니아성 질소의 제거속도 또한 초기 단백질의 농도가 증가함과 동반하여 증가하였다. 초기 단백질 농도가 증가함에 따라 단백질의 제거율은 감소하였으며 총 부유고형물, 화학적 산소 요구량과 탁도의 제거율도 같은 경향을 나타내었으나 총 암모니아성 질소의 제거율은 증가하는 것으로 나타났다. 본 실험에 사용한 포말분리기는 96% 이상의 높은 용존산소 포화율을 나타내었다.
Experimental investigations on the effect of the initial protein concentration for the removal of aquacultural waste, such as protein, total suspended solids(TSS), turbidity, chemical oxygen demand(COD) and total ammonia nitrogen(TAN) from sea water were carried out by using foam separator. The foam separator as an aerator was also evaluated for increasing dissolved oxygen concentration. The experimental results of foam separator using sea water indicated that the removal efficiency of potein decreased with the increasing the initial protein concentration and the protein removal rate followed the Langmuir isotherm. The increase in the initial protein concentration increased the removal rate of TSS, COD, turbidity and TAN. The removal efficiencies of TSS, turbidity and COD were decreased with increasing the initial protein concentration, but TAN was increased. Dissolved oxygen(DO) saturation of effluent from foam separator was higher than 96%.
Keywords
References
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Chen S, Stechy D, Malone RF, M.B. Timmons and T.M. Losordo(Eds.) "Aquaculture Water Reuse System: Engineering Design and Management: Suspended Solids Control in Recirculating Aquaculture Systems," Elsevier, Amsterdam, 61 (1996)
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Cho D, Chang HN, Korean J. Chem. Eng., 15(4), 445 (1998)
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Chen S, Aquacult. Eng., 13, 183 (1994)
Suh KH, Lee HG, Kim BJ, Cho MC, An SH, Cho JY, J. Korean Environ. Sci., 7, 41 (1998)
Weeks NC, Timmons MB, Chen S, Aquacult. Eng., 11, 251 (1992)
Lowry OH, Rosebrough NJ, Farr AL, Randall RJ, J. Biotechnol., 193, 265 (1951)
Bollag DM, Edelstein SJ, "Protein Methods," Wiley-Liss, New York, 46 (1991)
APHA, AWWA and WEF: "Standard Methods for the Examination of Water and Wastewater," 18th ed., EPS Group (1992)
Korean Institute of Industry and Technology: "Standard Methods for the Examination of Environmental Pollution," (1990)
Wheaton FW, Hochheimer JN, Kaiser GE, Klones MJ, Libey GS, Easter CC, M.B. Timmons and T.M. Losordo(Eds.), "Aquaculture Water Reuse System: Engineering Design and Management: Nitrification Filter Principle," Elsevier, Amsterdam, 101 (1996)
Cho D, Cornec M, Korean J. Chem. Eng., 16(3), 371 (1999)
Uraizee F, Narsimhan G, Biotechnol. Bioeng., 51(4), 384 (1996)
Uraizee F, Narsimhan G, Sep. Sci. Technol., 30(6), 847 (1995)
Brown AK, Kaul A, Varley J, Biotechnol. Bioeng., 62(3), 278 (1999)
Valsaraj KT, K.A. Matis(Ed.) "Flotation Science and Engineering: Removal Organics from Water by Nonfoaming Flotation," Marcel Dekker Inc., New York, 369 (1995)
Shuler ML, Kargi F, "Bioprocess Engineering-Basic Concepts," Prentice-Hall, New Jersey, 84 (1992)
Roger GL, Klementson SL, Aquacult. Eng., 4, 135 (1985)
Tchobanoglous G, Schroeder ED, "Water Quality," Addison-Wesley Publishing Company, California, 56 (1985)
Nigtingale JW, "Technical Report of Karmer," Chin and Mayo Inc., Washington (1976)
Liao PB, Mayo RD, Aquaculture, 3, 61 (1974)
Environmental Protection Agency: "Quality Criteria for Water, Office of Technology Transfer," Washington D.C. (1976)
Chen S, Ph.D. Dissertation, Cornell University, Ithaca, New York (1991)
Suh KH, Lee MG, J. Korean Fish. Soc., 30, 239 (1995)
