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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14834
Title: Process optimization for effective bio-decolourization of reactive orange 16 using chemometric methods
Authors: Mishra S.
Maiti, Abhijit
Published in: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Abstract: Azo group containing reactive dyes are most commonly used in textile and tannery industries due to its bright appearance and stable color. This study aims to investigate the decolourization of reactive orange 16 (RO16) dye by Pseudomonas aeruginosa 23N1 along with removal of chromate (Cr(VI)) and evaluation of optimal process condition. The regular two-level factorial design is used to screen out operational parameters and selects their levels for further optimization process through central composite design (CCD) based response surface methodology (RSM). The result revealed that glucose and peptone have a negative effect on the performance of dye decolourization. Bacteria exhibit high decolourization potential in yeast extract supplemented culture medium with no addition of external carbon sources. The percentages of decolourization obtained in model validated experiments are obtained as 95.0 ± 0.4% and 95.1 ± 0.5% for initial dye 50 mg/L and 150 mg/L, respectively, which exhibit satisfactory correlation with model predicted response. The simultaneous dye and Cr(VI) removal has been explored in this study. The decolourization of dye is only affected due to presence of high Cr(VI) concentration (>120 mg/L). Bacteria have shown satisfactorily decolourization for RO16 contaminated industrial wastewater. The strain 23N1 could be a good biological agent for decolourization of RO16 dye. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.
Citation: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering (2019), 54(3): 179-192
URI: https://doi.org/10.1080/10934529.2018.1541383
http://repository.iitr.ac.in/handle/123456789/14834
Issue Date: 2019
Publisher: Taylor and Francis Inc.
Keywords: azo dye
bacteria
response surface methodology
RO16 dye
yeast extract
ISSN: 10934529
Author Scopus IDs: 55353346500
23994098600
Author Affiliations: Mishra, S., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur, Uttar Pradesh, India
Maiti, A., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur, Uttar Pradesh, India
Funding Details: The Authors acknowledge the financial support from Ministry of Human Resource Development (MHRD), Government of India, for student scholarship and funding support through the project (IMPRINT scheme, Project number:6125) along with Ministry of Urban Development, New Delhi, India.
Corresponding Author: Maiti, A.; Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, India; email: mabhifpt@iitr.ac.in
Appears in Collections:Journal Publications [PE]

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