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Application of novel bacterial consortium for biodegradation of aromatic amine 2-ABS using response surface methodology
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- Fatima, Masoom (author)
- COMSATS Univ Islamabad, Dept Biosci, Islamabad, Pakistan.;COMSATS Univ Islamabad, Dept Chem, Lahore Campus, Lahore, Pakistan.;COMSATS Univ Islamabad, Dept Biosci, Islamabad, Pakistan.;COMSATS Univ Islamabad, Dept Chem, Lahore Campus, Lahore, Pakistan.
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- Saeed, Muhammad (author)
- COMSATS Univ Islamabad, Dept Biosci, Islamabad, Pakistan.;COMSATS Univ Islamabad, Dept Biosci, Islamabad, Pakistan.
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- Aslam, Muhammad (author)
- COMSATS Univ Islamabad, Dept Chem Engn, Lahore Campus, Lahore, Pakistan.;COMSATS Univ Islamabad, Dept Chem Engn, Lahore Campus, Lahore, Pakistan.
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- COMSATS Univ Islamabad, Dept Biosci, Islamabad, Pakistan;COMSATS Univ Islamabad, Dept Chem, Lahore Campus, Lahore, Pakistan.;COMSATS Univ Islamabad, Dept Biosci, Islamabad, Pakistan.;COMSATS Univ Islamabad, Dept Chem, Lahore Campus, Lahore, Pakistan. COMSATS Univ Islamabad, Dept Biosci, Islamabad, Pakistan.;COMSATS Univ Islamabad, Dept Biosci, Islamabad, Pakistan. (creator_code:org_t)
- Elsevier BV, 2020
- 2020
- English.
- In: Journal of Microbiological Methods. - : Elsevier BV. - 0167-7012 .- 1872-8359. ; 174
- Journal article (peer-reviewed)
Abstract
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- There is a strong need to develop purification methods for textile industrial wastewater containing toxic azo dyes. The reductive cleavage of azo dyes can be made by anaerobic bacteria, but the products of aromatic amines require an aerobic process. In this study a novel bacterial dye degrading consortium (DDC) of five isolated strains identified with 16S rRNA sequence: Proteus mirabilis (KR732288), Bacillus anthracis (KR732289), Enterobacter hormaechei (KR732290), Pseudomonas aeruginosa (KR732293) and Serratia rubidaea (KR732296) were used to aerobically decompose metabolite 2-aminobenxenesulfonic acid (2-ABS), as a model compound. The effect of three variables: temperature (28-42 degrees C), pH (5.0-8.0) and initial concentration of 2-ABS (5-40 ppm) was investigated in terms of degradation and chemical oxygen demand (COD) removal. Central composite design matrixand response surface methodology (RSM) were used for experimental design to evaluate theinteraction of the three process variables. The results show that up to 95% degradation and COD 90% removal are possible at optimal values of 32.4 ppm 2-ABS, pH 6.6 and a temperature of 35.7 degrees C. The theoretical response variables predicted by the developed RSM model was supported the experimental results. The optimized degradation of 2-ABS and COD removal were further confirmed by UV-HPLC analysis.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Miljöbioteknik -- Vattenbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Biotechnology -- Water Treatment (hsv//eng)
Keyword
- Bacterial consortium
- Aerobic degradation
- COD removal
- 2-aminobenzenesulfonic acid
- Response surface methodology
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- ref (subject category)
- art (subject category)
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