Microbial degradation of phenol in simulated coal gasification wastewater

被引：0

作者：

Fu J. ^{[1
]}

Chen L. ^{[1
]}

Xu B. ^{[1
,2
]}

Hua S. ^{[1
]}

Li C. ^{[1
]}

Yang M. ^{[1
]}

Xing B. ^{[1
,2
]}

Yi G. ^{[1
,2
]}

机构：

[1] Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Henan, Jiaozuo

[2] Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan, Jiaozuo

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2023年 / 42卷 / 01期

关键词：

coal gasification; degradation mechanism; microbial degradation; phenol; water pollution;

D O I：

10.16085/j.issn.1000-6613.2022-0596

中图分类号：

学科分类号：

摘要：

Phenol is a typical organic pollutant in coal gasification wastewater, and its treatment has received wide attention and research. Two phenol efficient degradation strains, named JHFS-1 and QHFS-1, were screened from coking wastewater and gasification wastewater by continuous domestication and plate scribing method. The effects of temperature, pH, shaking bed speed, bacterial inoculum, Cu2+ and Mn2+ on the phenol degradation were investigated by microbial degradation experiments of phenol solution, and the microbial degradation effect of gas scrubber water produced by simulated coal gasification was also investigated. Both strains were identified as Acinetobacter calcoaceticus by 16S rDNA gene sequencing and microbiological identification. The optimized degradation conditions for phenol were 30℃, pH was 6.0, shaking bed speed was 120r/min and inoculum was 13%, and the phenol degradation rate could reach 94.31% after 24h treatment. Cu2+ had a certain inhibitory effect on the degradation of phenol by JHFS-1, and Mn2+ promoted the degradation of phenol by JHFS-1 to a certain extent. The phenol degradation by microorganisms followed the hydroxylation pathway and carboxylation pathway. JHFS-1 bacteria could effectively degrade the organic pollutants in gas washing water, and the TOC degradation rate reached 58.43%. © 2023 Chemical Industry Press. All rights reserved.

引用

页码：526 / 537

页数：11

共 31 条

[1] YANG Guohui, CHU Fukui, LI Lei, Comparison and analysis of coal gasification technology, Shandong Chemical Industry, 50, 23, pp. 61-64, (2021)
[2] LI Yulong, LIANG Dongyu, SHENG Xunchao, Et al., Distribution and enrichment characteristics of trace elements during underground coal gasification, Chemical Industry and Engineering Progress, 37, 4, pp. 1590-1598, (2018)
[3] ZHANG Le, CHEN Lunjian, SU Yu, Et al., Experimental studies on removal of organic contaminants in groundwater by UCG using semi-coke, Chemical Industry and Engineering Progress, 35, 10, pp. 3337-3343, (2016)
[4] HEMIDOUCHE S, FAVIER L, AMRANE A, Et al., Successful biodegradation of a refractory pharmaceutical compound by an indigenous phenol-tolerant pseudomonas aeruginosa strain, Water, Air, & Soil Pollution, 229, 3, pp. 1-16, (2018)
[5] ZHAO Tiantao, GAO Yanhui, YU Tiantian, Et al., Biodegradation of phenol by a highly tolerant strain Rhodococcus ruber C1: biochemical characterization and comparative genome analysis, Ecotoxicology and Environmental Safety, 208, (2021)
[6] DAYANA PRIYADHARSHINI S, BAKTHAVATSALAM A K., A comparative study on growth and degradation behavior of C. pyrenoidosa on synthetic phenol and phenolic wastewater of a coal gasification plant, Journal of Environmental Chemical Engineering, 7, 3, (2019)
[7] BASHA K M, RAJENDRAN A, THANGAVELU V., Recent advances in the biodegradation of phenol: a review, Asian Journal of Experimental Biological Science, 1, 2, pp. 219-234, (2010)
[8] HE Qiangli, LIU Wenbin, YANG Haijun, Et al., Isolation, identification of a phenol-degradaing strain and optimization for phenol degradation using response surface methodology, Acta Scientiae Circumstantiae, 36, 1, pp. 112-123, (2016)
[9] ZHOU Le'an, YAN Xuejun, YAN Yuqing, Et al., Electrode potential regulates phenol degradation pathways in oxygen-diffused microbial electrochemical system, Chemical Engineering Journal, 381, (2020)
[10] YANG Bingheng, AN Luyang, ZHANG Litao, Et al., Treatment of coking wastewater with composite electrode with PPy as middle layer, Chemical Industry and Engineering Progress, 39, 10, pp. 4256-4267, (2020)

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