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Inhibiting sulfate reducing bacteria activity by denitrification in an anaerobic baffled reactor: influencing factors and mechanism analysis

文献类型： 外文期刊

作者： Zhang, Zhaohan 1 ; Liu, Guangmin 2 ; Feng, Yujie 1 ; Chen, Zhongxi 3 ; Zhan, Peirong 4 ; Ren, Nanqi 1 ;

作者机构： 1.Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

2.Harbin Engn Univ, Dept Environm Engn, Harbin 150001, Peoples R China

3.Daqing Oilfield Design & Res Inst, Daqing 163712, Peoples R China

4.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin 150001, Peoples R China

关键词： ABR continuous-flow experiments;Batch experiments;Denitrification;Inhibition;Sulfate reduction

期刊名称：DESALINATION AND WATER TREATMENT （ 影响因子：1.254； 五年影响因子：1.553 ）

ISSN： 1944-3994

年卷期： 2014 年 52 卷 22-24 期

页码：

收录情况： SCI

摘要： For controlling the equipment corrosion of hydrogen sulfide produced by the microbe in oilfield system, denitrification was used to inhibit the sulfate reduction in a continuous flow anaerobic baffled reactor. The influencing factors and running effects of this process inhibition were investigated. Batch experiments were conducted to study the inhibitory mechanisms. The results indicated that SO42-/NO3- ratio and relative Chemical Oxygen Demand (COD) content were the two most important environmental factors affecting the inhibitory effect. The inhibitory effect increased with decrease of SO42-/NO3- ratio. The lower COD content benefited to increase the inhibitory effect. The inhibitor could act only in 1-3 chambers with the effective inhibitory time of 2.3-6.9 h. The inhibitory effect could be reflected by the system oxidation reduction potential (ORP). Denitrification predominated with the ORP in the range of -50mV to -150 mV, while sulfate reduction predominated with the ORP in the range of 300mV to 400 mV. Three inhibitory mechanisms were observed in the experiments: competitive inhibition for carbon source, nitrite-N inhibition, and oxidation by autotrophic denitrifying bacteria.

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[1]DENITRIFICATION INHIBITING SULFATE REDUCTION PROCESS: ROLES OF S/N RATIO, CARBON SOURCE AND ALKALINITY. Zhang, Zhaohan,Gao, Peng,Ren, Nanqi,Feng, Yujie,Liu, Guangmin,Zhang, Zhaohan,Zhan, Peirong.

[2]Inhibition of CYP450 1A and 3A by berberine in crucian carp Carassius auratus gibelio. Zhou, Chang,Li, Xin-Cang,Fang, Wen-Hong,Hu, Lin-Lin,Zhou, Shuai,Zhou, Jun-Fang,Zhou, Chang,Yang, Xian-Le. 2011

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