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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Immobilization of anaerobic ammonium oxidizing bacteria has been studied to enhance the biomass retention of the slowly growing bacteria and the process stability. The purpose of this study was to compare the nitrogen removal efficiency of granular and immobilized anammox bacteria with poly vinyl alcohol and alginate. The specific anammox activity of the granular, homoginized and immobilized anammox bacteria were $0.016{\pm}0.0002gN/gVSS/d$, $0.011{\pm}0.001gN/gVSS/d$ and $0.007{\pm}0.0005gN/gVSS/d$, respectively. Although the activity decreased to 43.7 % of the original one due to low pH and $O_2$ exposure during the homogination and the immobilization, it was rapidly recovered within 7 days in the following continuous culture. When synthetic T-N concentrations of 100, 200, 400, 800 mg/L were fed, the immobilized anammox bacteria showed higher nitrogen removal efficiencies at all operational conditions than those of granular anammox bacteria. When the sludge retention time was shorten below 30.7 days and the reject water was fed, the nitrite removal efficiency of the granular anammox bacteria dropped to 8 % of the initial value, while that of the immobilized anammox bacteria was maintained over 95 % of the initial one. The immobilization with poly vinyl alcohol and alginate would be a feasible method to improve the performance and stability of the anammox process.
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참고문헌 (33)
참고문헌 신청
Asano H / 1992 / A study of nitrification utilizing whole microorganism immobilized by the PVA-freezing method / Water Science & Technology 26:1037~1046
Bae H. K / 2010 / Distribution of anammox bacteria in domestic WWTPs and their enrichments evaluated by real-time quantitative PCR / Process Biochemistry 45:323~334
Chen K .C / 1994 / Immobilization of microorganism with phosphorylated polyvinyl alcohol(PVA) gel / Exzyme and Microbial Technology 16:79~83
Doria- Serrano M.C / 2001 / Physical Characteristics of Poly(vinyl alcohol) and Calcium Alginate Hydrogels for the Immobilization of Activated Sludge / Biomacromolecules 2:568~574
Furuka wa K / 2009 / Innovative treatment system for digester liquor using anammox process / Bioresource Technology 100:5437~5443
Bae H. K / 2010 / Distribution of anammox bacteria in domestic WWTPs and their enrichments evaluated by real-time quantitative PCR / Process Biochemistry 45:323~334
Chen K .C / 1994 / Immobilization of microorganism with phosphorylated polyvinyl alcohol(PVA) gel / Exzyme and Microbial Technology 16:79~83
Doria- Serrano M.C / 2001 / Physical Characteristics of Poly(vinyl alcohol) and Calcium Alginate Hydrogels for the Immobilization of Activated Sludge / Biomacromolecules 2:568~574
Furuka wa K / 2009 / Innovative treatment system for digester liquor using anammox process / Bioresource Technology 100:5437~5443
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