气候变化领域集成服务门户(CCPortal): Decolorization and toxicity evaluation of simulated textile effluent via natural microbial consortia in attached growth reactors

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DOI	10.1016/j.eti.2022.102284
	Decolorization and toxicity evaluation of simulated textile effluent via natural microbial consortia in attached growth reactors
	Iqbal, Awais; Ali, Naeem; Shang, Zhang-Huan; Malik, Noshaba Hassan; Rehman, Muhammad Maqsood Ur; Sajjad, Wasim; Rehman, Mian Laiq Ur; Khan, Salman
通讯作者	Ali, N (通讯作者)，Quaid I Azam Univ, Fac Biol Sci, Dept Microbiol, Islamabad 45320, Pakistan.
发表日期	2022
ISSN	2352-1864
卷号	26
英文摘要	Textile wastewater is heterogeneous in nature with multiple types of dyes and other chemicals. Considering this point, attached growth bioreactors were constructed, using sludge (SD), alkalophilic (AK), and thermophilic (TH) bacterial consortia to develop an effective dye biodegradation system. Simulated dye wastewater, containing a 50 ppm mixture of three reactive azo dyes, viz. Reactive Blue (RB 221), Reactive Yellow (RY 145), and Reactive Red (RR 195) were treated under batch mode operation for up to 192 h. Overall, the color removal efficiency of the reactors varied from 85 to 94 % in 192 h. The thermophilic consortium achieved maximum decolorization (93.5 %), operated at 50 degrees C, while the alkalophilic consortium attained maximum COD reduction (93.0 %). Nitrites and nitrates were reduced to (14.7 - 79.3) - (84 - 239.4) mg/L, while sulfates ranged from 624.7 - 1003 mg/L. In addition, scanning electron microscopy (SEM) analysis revealed the biofilm community structure, indicating diverse bacterial interactions among each consortium. The biodegradation of dyes was further confirmed through Fourier-transform infrared spectroscopy (FTIR). Phytotoxicity and cytotoxicity analyses revealed that the dye mixture became non-toxic after treatment. This study outlines that natural microbial consortia are efficient dye decolorizers and confers the possibility of using microbial consortia for upscale biological treatment of dyeing effluents. (C) 2022 The Author(s). Published by Elsevier B.V.
关键词	AZO-DYE DECOLORIZATION WASTE-WATER TREATMENT BATCH REACTOR SYNTHETIC DYES MIXED CULTURE METHYL RED DEGRADATION BIODEGRADATION DETOXIFICATION BACTERIUM
英文关键词	Attached growth reactor; Azo dyes; Natural bacterial consortia; Dye mixture
语种	英语
WOS研究方向	Biotechnology & Applied Microbiology ; Engineering ; Environmental Sciences & Ecology
WOS类目	Biotechnology & Applied Microbiology ; Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000754178200001
来源期刊	ENVIRONMENTAL TECHNOLOGY & INNOVATION
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254704
作者单位	[Iqbal, Awais; Shang, Zhang-Huan; Rehman, Muhammad Maqsood Ur; Khan, Salman] Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China; [Iqbal, Awais; Ali, Naeem; Malik, Noshaba Hassan; Rehman, Muhammad Maqsood Ur; Sajjad, Wasim; Khan, Salman] Quaid I Azam Univ, Fac Biol Sci, Dept Microbiol, Islamabad 45320, Pakistan; [Sajjad, Wasim] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Rehman, Mian Laiq Ur] Nankai Univ, Coll Environm Sci & Engn, Tianjin 300350, Peoples R China
推荐引用方式 GB/T 7714	Iqbal, Awais,Ali, Naeem,Shang, Zhang-Huan,et al. Decolorization and toxicity evaluation of simulated textile effluent via natural microbial consortia in attached growth reactors[J]. 中国科学院西北生态环境资源研究院,2022,26.
APA	Iqbal, Awais.,Ali, Naeem.,Shang, Zhang-Huan.,Malik, Noshaba Hassan.,Rehman, Muhammad Maqsood Ur.,...&Khan, Salman.(2022).Decolorization and toxicity evaluation of simulated textile effluent via natural microbial consortia in attached growth reactors.ENVIRONMENTAL TECHNOLOGY & INNOVATION,26.
MLA	Iqbal, Awais,et al."Decolorization and toxicity evaluation of simulated textile effluent via natural microbial consortia in attached growth reactors".ENVIRONMENTAL TECHNOLOGY & INNOVATION 26(2022).