Bioresource Technology 2013-09-01

Sulfate removal by Desulfovibrio sp. CMX in chelate scrubbing solutions for NO removal.

Mingxiang Chen, Yu Zhang, Jiti Zhou, Xiyang Dong, Xiaojun Wang, Zhuang Shi

文献索引:Bioresour. Technol. 143 , 455-60, (2013)

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摘要

To study the effects of Fe chelate solution and nitrosyl-complex (Fe(II)EDTA-NO), which might be introduced in the simultaneous biodesulfurization and denitrification process, on the sulfate removal process, a sulfate reducing bacteria Desulfovibrio sp. CMX was investigated for its sulfate removal capacity in the presence of Fe chelate additives and Fe(II)EDTA-NO. Meanwhile, Fe(II)EDTA-NO reduction was also investigated. The addition of Fe(II)EDTA and Fe(III)EDTA could stimulate the sulfate reduction performance. Although Fe(II)EDTA-NO could inhibit the strain, CMX could survive by consuming lactate and recover its sulfate reducing activity after Fe(II)EDTA-NO removed. Sulfate reduction could be enhanced in higher Fe(II)EDTA-NO concentrations (2 and 4 mM) by lactate applied at the middle stage of the experiment, and 72.2% and 62.6% sulfate were removed in 182 h, respectively. In this study, above 90% Fe(II)EDTA-NO (0.25-4 mM) was removed less than 60 h, which was much faster than sulfate reduction.Copyright © 2013 Elsevier Ltd. All rights reserved.


相关化合物

  • 乙二胺四乙酸二钠
  • 依地酸钙钠
  • EDTA二钠
  • 乙二胺四乙酸
  • 乙二胺四乙酸铁钠

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