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Evaluation of a combined anaerobic baffled reactor–downflow hanging sponge biosystem for treatment of synthetic dyeing wastewater
Nguyen T.H.a, Watari T.a,b, Hatamoto M.a, Sutani D.c, Setiadi T.d, Yamaguchi T.a
a Department of Science of Technology Innovation, Nagaoka University of Technology, Niigata, 940-2188, Japan
b Department of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Viet Nam
c Nihon Suido Consultants Co., Ltd, Tokyo, Japan
d Department of Chemical Engineering, Institut Teknologi Bandung, Bandung, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2020 Elsevier B.V.Highly colored wastewater from the textile industry, can threaten the natural environment if discharged into water bodies without any treatment. In this study, a laboratory-scale system combining an anaerobic baffled reactor (ABR), with the total volume of 10 L and a down-flow hanging sponge reactor (DHS), with the total volume of 4.14 L was designed to treat synthetic dyeing wastewater containing the commercial azo dye Hellozol HSR Reactive Black at 30 °C with a hydraulic retention time (HRT) of 23.2 h. Synthetic wastewater with 260 ±40mg.L−1 of chemical oxygen demand concentration (COD) and 1020 ± 70 Pt/Co of true color level was prepared based on the characteristics of an actual effluent from an Indonesian textile factory. The combined system showed maximum COD and color removal efficiencies of 90% and 58%, respectively, with the removal majority taking place in the ABR. Moreover, microbial community analysis conducted on sludge retained from the ABR indicated that Proteobacteria, Firmicutes, WWE1, Spirochaetes, Bacteroidetes, Chloroflexi, OP8, andEuryarchaeota were predominant phyla. Among them, Clostridium sp was discovered and reported to have potential to degrade a wide range of azo dyes.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Anaerobic baffled reactor,Down-flow hanging sponge reactor,Dyeing wastewater,HSR Reactive Black,Microbial community analysis[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][{‘$’: ‘This research was supported by the Ministry of the Environment, Japan. The authors would like to thank the members of Aqua and Soil Environment Laboratory, Nagaoka University of Technology, who supported and encouraged this research work. The fifth author would like to thank also to Insitut Teknologi Bandung through P3MI 2019 program with contract no 0922h/I1.C06.2/PL/2019.’}, {‘$’: ‘This research was supported by the Ministry of the Environment, Japan . The authors would like to thank the members of Aqua and Soil Environment Laboratory, Nagaoka University of Technology, who supported and encouraged this research work. The fifth author would like to thank also to Insitut Teknologi Bandung through P3MI 2019 program with contract no 0922h/I1.C06.2/PL/2019.’}][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1016/j.eti.2020.100913[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]