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Effect of Complexation of Humic Acid with Iron Minerals on Microbial Degradation of Sulfamethoxazole
Science Discovery
Volume 7, Issue 5, October 2019, Pages: 330-336
Received: Oct. 28, 2019; Published: Dec. 3, 2019
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Authors
Chen Xueyan, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
Jiang Jie, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
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Abstract
Microbial Shewanella oneidensis MR-1 can degrade sulfamethoxazole (SMX) and act as a microorganism with strong electron donating properties, which can accelerate the degradation of SMX when it cooperates with electronic shuttle and disproportionated iron. By adding different TOC concentrations, different molecular weight humic acids, and magnetite and hematite suspensions, the optimal system growth conditions, ie, the temperature of 30°C, pH = 7, the TOC concentration, The effect of humic acid with different molecular weights and the addition and synergistic addition of different iron minerals on the degradation of SMX by Shewanella oneidensis MR-1. The study found that humic acid stock solution, small molecule humic acid, iron mineral and both of them will accelerate the degradation of SMX by microbial MR-1. The concentration of small molecule humic acid will degrade SMX by Shewanella oneidensis MR-1. The effect of the humic acid is greater than that of the original solution. The addition of magnetite and hematite suspension to the reactor alone promotes the degradation of SMX by Shewanella oneidensis MR-1, and the addition of humic acid will improve the degradation rate of SMX.
Keywords
Shewanella oneidensis MR-1, Sulfamethoxazole, Humic Acid, Iron Mineral
To cite this article
Chen Xueyan, Jiang Jie, Effect of Complexation of Humic Acid with Iron Minerals on Microbial Degradation of Sulfamethoxazole, Science Discovery. Vol. 7, No. 5, 2019, pp. 330-336. doi: 10.11648/j.sd.20190705.22
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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