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Salinity Inhibition Effects on Biological Perchlorate and Nitrate Reduction
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생물학적 퍼클로레이트와 질산염 환원에 대한 염분의 저해 영향

논문 기본 정보

Type
Academic journal
Author
Journal
Construction and Environment Research Institute 청운대학교 건설환경연구소 논문집 청운대학교 건설환경연구소 논문집 제8권 제2호
Published
2013.1
Pages
128 - 135 (8page)

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Salinity Inhibition Effects on Biological Perchlorate and Nitrate Reduction
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Abstract· Keywords

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In this study, the inhibitory effects of high salinity on biological perchlorate and nitrate reduction were investigated in flask batch tests and fixed biofilm reactor. Biological perchlorate and nitrate reduction rates at 1.5% and 3% NaCl were lower than 0% NaCl in batch tests. When salt concentrations in the feed were gradually increased from 0% to 3% NaCl, 10mg/L of perchlorate was completely reduced at 2% NaCl in a fixed biofilm reactor. However, at 3% NaCl, perchlorate reduction was significantly inhibited and perchlorate reduction rate was average 28.4% in a fixed biofilm reactor. Perchlorate and nitrate were reduced simultaneously in the presence of perchlorate(1mg/L ClO4-) and nitrate(66.4mg/L NO3-) even at 1.5% NaCl in a fixed biofilm reactor. Although perchlorate could not be measured by IC due to the interference of high salinity at 3% NaCl, nitrate reduction was inhibited and nitrate reduction rate was average 53.9% at 3% NaCl in a fixed biofilm reactor.
#퍼클로레이트 #질산염 #염분 #생물막 반응조 #perchlorate #nitrate #salinity #biofilm reactor

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References (13)

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Cang, Y. / 2004 / Development of Cultures Capable of Reducing Perchlorate and Nitrate in High Salt Solution / Water Res 38 (14) : 3322 ~ 3330 google schola Choi, H. / 2008 / Inhibition of Perchlorate Reduction by Nitrate in a Fixed Biofilm Reactor / J. Hazard. Mater 159 (2) : 440 ~ 445 google schola Gullick, R. W. / 2001 / Occurrence of Perchlorate in Drinking Water Sources / J. Am. Water Works Assn 93 (1) : 66 ~ 77 google schola Hatzinger, P. B. / 2005 / Perchlorate Biodegradation for Water Treatment / Environ. Sci. Technol 39 (11) : 239A ~ 247A google schola Logan, B. E. / 1998 / A Review of Chlorate- and Perchlorate-Respiring Microorganisms / Biorem. J 2 (2) : 69 ~ 79 google schola

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