高氯酸盐在硝酸盐还原条件下的厌氧生物降解

王蕊; 刘菲; 秦莉红; 陈鸿汉

doi:10.3799/dqkx.2012.034

Volume 37 Issue 2

Mar. 2012

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WANG Rui, LIU Fei, QIN Li-hong, CHEN Hong-han, 2012. Anaerobic Biological Reduction of Perchlorate in the Presence of Nitrate. Earth Science, 37(2): 307-312. doi: 10.3799/dqkx.2012.034

Citation:

WANG Rui, LIU Fei, QIN Li-hong, CHEN Hong-han, 2012. Anaerobic Biological Reduction of Perchlorate in the Presence of Nitrate. Earth Science, 37(2): 307-312. doi: 10.3799/dqkx.2012.034

WANG Rui, LIU Fei, QIN Li-hong, CHEN Hong-han, 2012. Anaerobic Biological Reduction of Perchlorate in the Presence of Nitrate. Earth Science, 37(2): 307-312. doi: 10.3799/dqkx.2012.034

Citation:

WANG Rui, LIU Fei, QIN Li-hong, CHEN Hong-han, 2012. Anaerobic Biological Reduction of Perchlorate in the Presence of Nitrate. Earth Science, 37(2): 307-312. doi: 10.3799/dqkx.2012.034

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Anaerobic Biological Reduction of Perchlorate in the Presence of Nitrate

doi: 10.3799/dqkx.2012.034

Faculty of Water Resources and Environment, China University of Geosciences, Beijing 100083, China

Received Date: 2010-09-20
Publish Date: 2012-03-15

Abstract

Abstract

Anaerobic biological reduction of perchlorate in the presence of nitrate using is studied acetate as carbon source. In addition, effects of different nitrate concentrations on perchlorate reduction are researched. The results show that 10mg/L of perchlorate can be removed by the enriched microorganisms in different nitrate-reducing conditions. Evidence is also presented demonstrating that perchlorate reduction is not inhibited under 20mg/L nitrate-reducing condition. However, under 100mg/L, 200mg/L and 500mg/L nitrate-reducing conditions, perchlorate removal is observed with longer lag periods of 7d, 13d and 38d respectively. At the initial period of reactions, nitrate, as a more favorable electron acceptor, is more easily used by the microbes. With the rapid reduction of nitrate and nitrite accumulation, it is reasonable to propose that the electronic competition and the toxic effect of a certain level of nitrite, particularly in large quantity, on the activity of perchlorate-reducing bacteria, may temporarily delay perchlorate biological reduction.
- perhclorate,
- nitrate,
- degradation,
- pollution control,
- environmental engineering

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References(29)

References

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