ORIGINAL RESEARCH
Sweet Lime-Mediated Decolorization of Textile
Industry Effluents
| 1 | Department of Chemistry, Govt. College Women University, Sialkot, Pakistan |
| 2 | Govt. Islamia Degree College Sambrial, Sialkot, Pakistan |
| 3 | Department of Chemistry, University of Agriculture, Faisalabad, Pakistan |
| 4 | Department of Biochemistry, Government College University, Faisalabad, Pakistan |
| 5 | Institute of Chemistry, Shah Abdul Latif University, Khairpur, Sindh, Pakistan |
| 6 | Department of Chemistry, Women University of Azad Jammu and Kashmir, Bagh, Pakistan |
| 7 | Department of Chemistry, Islamia University Bahawalpur, Pakistan |
| 8 | Department of Chemistry, Govt. College Women University, Faisalabad, Pakistan |
| 9 | Department of Chemistry, The University of Lahore, Lahore, Pakistan |
CORRESPONDING AUTHOR
Arif Nazir
Department of Chemistry, Department of Chemistry, University of Lahore, Lahore, 1-Km Raiwind Road, Lahore, 54000 Lahore, Pakistan
Department of Chemistry, Department of Chemistry, University of Lahore, Lahore, 1-Km Raiwind Road, Lahore, 54000 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
KEYWORDS
TOPICS
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.
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