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Decolorization of Remazol Black-B azo dye in soil by fungi
Author(s)
Azeem Khalid Department of Environmental Sciences, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, PAKISTAN
Shahid Mahmood Department of Environmental Sciences, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, PAKISTAN
Sadia Batool Institute of Soil & Environmental Sciences, University of Agriculture, Faisalabad, PAKISTAN
Muhammad Arshad Institute of Soil & Environmental Sciences, University of Agriculture, Faisalabad, PAKISTAN
Riffat Bibi Institute of Soil & Environmental Sciences, University of Agriculture, Faisalabad, PAKISTAN
Muhammad Tariq Siddique Department of Soil Science & Soil & Water Conservation, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, PAKISTAN
Zilli Huma Nazli Department of Chemistry, Government College for Women, Faisalabad, PAKISTAN
Abstract
Textile industry is known to release huge amount of dyes in the water and soil environments during the dyeing process. The present study was planned with the aim to remove azo dye toxicants from the soil using fungal strains. The fungi were isolated by using Remazol Black-B azo dye as the sole source of C and N. Ten isolates were initially selected for testing their decolorization potential in the liquid medium. Three most effective strains were used to study the decolorization of Remazol Black-B in soil. The strain S4 was found to be very effective in removing the dye Remazol Black-B from liquid medium as well as in soil suspension. More than 95% decolorization by the strain S4 was observed in soil under optimal incubation conditions. Overall, the dye decolorization was maximum at 100 mg dye kg-1 soil at pH 7-8 under static conditions. Glucose, moisture and aeration also affected the decolorization efficacy of the fungal strain in soil. This study implies that fungi could be used for bioremediation of dyecontaminated sites.
Publication Details
Page(s) 1-6
DOI DOI not available
Published Journal: Soil and Environment, Volume: 30, Issue: 1, Year: 2011
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