Bioaugmentation of membrane bioreactor with Aeromonas hydrophila LZ-MG14 for enhanced malachite green and hexavalent chromium removal in textile wastewater
Bioaugmentation of membrane bioreactor with Aeromonas hydrophila LZ-MG14 for enhanced malachite green and hexavalent chromium removal in textile wastewater
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膜生物反应器与嗜水气单胞菌 LZ-MG14 的生物强化，用于增强纺织废水中孔雀石绿和六价铬的去除
DOI：
10.1016/j.ibiod.2020.104939
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发表时间：
2020-05
影响因子：
4.8
通讯作者：
Pu Liu
中科院分区：
文献类型：
--
作者：
Jing Ji;Saurabh Kulshreshtha;Apurva Kakade;Sabahat Majeed;Xiangkai Li;Pu Liu
纺织工业废水中含有剧毒染料和六价铬(Cr(VI))等难降解物质，通过对嗜水气单胞菌LZ-MG14的分离和鉴定，开发了一种有效的生物强化策略来修复纺织废水中的孔雀石绿(MG)和六价铬(VI)。菌株LZ-MG14在12h内去除了96.8%的MG(对L−1 200m g)和93.71%的Cr(VI)(对L−1为0.5m ol)，并显著增加了生物量。LZ-MG14对镁的矿化机理涉及N-脱甲基化和共轭结构的分解，而去除铬(VI)的机理是还原。LZ-MG14在膜生物反应器(MBR)中的生物强化显著提高了对纺织废水中MG的降解和对Cr(VI)的去除。此外，LZ-MG14还成功地在活性污泥中定殖，形成了降解MG和去除Cr(VI)的有效微生物群。LZ-MG14生物强化技术可用于纺织废水中MG的降解和六价铬的去除。
Textile industry wastewater comprises refractory components, such as highly toxic dyes and hexavalent chromium (Cr(VI)).Aeromonas hydrophilaLZ-MG14 was isolated and characterized to develop an effective bioaugmentation strategy for the bioremediation of malachite green (MG) and Cr(VI) from textile wastewater. Strain LZ-MG14 removed 96.8% of MG (200 mg L−1) and 93.71% of Cr(VI) (0.5 mmol L−1) within 12 h with a significant increase in biomass. The mechanism underlying MG mineralization by LZ-MG14 involved N-demethylation and decomposition of conjugated structure, while that underlying Cr(VI) removal was reduction. LZ-MG14 bioaugmentation in a membrane bioreactor (MBR) significantly enhanced the efficiency of MG degradation and Cr(VI) removal in textile wastewater. Additionally, LZ-MG14 successfully colonized the activated sludge and shaped the effective microbiota for MG degradation and Cr(VI) removal. LZ-MG14 bioaugmentation can be potentially used for MG degradation and Cr(VI) removal in the textile wastewater.
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影响因子：
5
作者：
Singleton DR;Adrion AC;Aitken MD
通讯作者：
Aitken MD
影响因子：
13.6
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影响因子：
3
作者：
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通讯作者：
D. Ranjan;P. Srivastava;M. Talat;S. H. Hasan
DOI：
10.1016/j.scitotenv.2018.08.100
发表时间：
2019-01
期刊：
The Science of the total environment
影响因子：
--
作者：
P. Nguyen;A. Silva;A. Reis;O. Nunes;A. Rodrigues;J. Rodrigues;V. Cardoso;M. Benoliel;M. Reis;A. Oehmen;G. Carvalho
通讯作者：
P. Nguyen;A. Silva;A. Reis;O. Nunes;A. Rodrigues;J. Rodrigues;V. Cardoso;M. Benoliel;M. Reis;A. Oehmen;G. Carvalho