ORIGINAL RESEARCH
Sweet Lime-Mediated Decolorization of Textile Industry Effluents
 
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Department of Chemistry, Govt. College Women University, Sialkot, Pakistan
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Govt. Islamia Degree College Sambrial, Sialkot, Pakistan
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Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
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Department of Biochemistry, Government College University, Faisalabad, Pakistan
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Institute of Chemistry, Shah Abdul Latif University, Khairpur, Sindh, Pakistan
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Department of Chemistry, Women University of Azad Jammu and Kashmir, Bagh, Pakistan
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Department of Chemistry, Islamia University Bahawalpur, Pakistan
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Department of Chemistry, Govt. College Women University, Faisalabad, Pakistan
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Department of Chemistry, The University of Lahore, Lahore, Pakistan
Online publish date: 2018-08-13
Publish date: 2018-11-20
Submission date: 2017-10-11
Final revision date: 2017-11-29
Acceptance date: 2017-12-08
 
Pol. J. Environ. Stud. 2019;28(1):283–289
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ABSTRACT:
This study looks at using partially purified peroxidase extracted from peels of sweet lime (Citrus limetta) for decolorizing textile industry effluent. The ideal pH and thermal conditions of the enzyme were 7 and 35ºC. The Km and Vmax for guaiacol were 0.66 mM and 6666 μmol/mL/min, respectively. We found that sweet lime peroxidase was very effective in decolorizing textile industry effluent. Almost complete decolorization (>99 %) of effluent was attained at a pH of 5.0, temperature of 55ºC, H2O2 concentration of 2 mM, and enzyme dose of 40 U/mL within 60 minutes of incubation. The effluent was also analysed in terms of physicochemical parameters before and after treatment with sweet lime peroxidase. The reduction in toxicity after the enzymatic treatment was evidenced by chemical oxygen demand (COD) and total suspended solids (TSS) values.
CORRESPONDING AUTHOR:
Arif Nazir   
Department of Chemistry, Department of Chemistry, University of Lahore, Lahore, 1-Km Raiwind Road, Lahore, 54000 Lahore, Pakistan
eISSN:2083-5906
ISSN:1230-1485