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REMEDIATION OF TEXTILE AND MINING INFLUENCED EFFLUENTS USING NOVEL HETEROGENEOUS PAN CATALYST AND MODIFIED PAN MESH
Upreti, Pushpa Datta, Ph.D. Thesis, De Montifort University, Leicester, UK. 373 pp, 2018
The effectiveness of a modified polyacrylonitrile (PAN) catalyst and hydrogen peroxide system in the treatment of textile effluent and a modified ion exchange PAN mesh in the remediation of non-coal mine drainage was investigated. Continuous flow treatment in a prototype showed 99.2%, 73%, 64.4% and 50% removal efficiencies for decolorization, loss of aromaticity, chemical oxygen demand, and mineralization at optimum conditions, and breakthrough after 50 days. The system was successfully regenerated in situ three times and the lifetime of the catalyst extended to 103 days in total, decolorizing 25.3 g of reactive orange16 dye from 546.7 L solution. A pilot-scale field trial removed 5.59 kg, 8.53 g and 18.18 g of Zn-total, Cd-total and Pb-total from 131.46 m3 of mine effluent as well as suspended solids, Fe, Cu, As, Ni, Al, B, Mn and nitrate. https://www.dora.dmu.ac.uk/handle/2086/16390
The effectiveness of a modified polyacrylonitrile (PAN) catalyst and hydrogen peroxide system in the treatment of textile effluent and a modified ion exchange PAN mesh in the remediation of non-coal mine drainage was investigated. Continuous flow treatment in a prototype showed 99.2%, 73%, 64.4% and 50% removal efficiencies for decolorization, loss of aromaticity, chemical oxygen demand, and mineralization at optimum conditions, and breakthrough after 50 days. The system was successfully regenerated in situ three times and the lifetime of the catalyst extended to 103 days in total, decolorizing 25.3 g of reactive orange16 dye from 546.7 L solution. A pilot-scale field trial removed 5.59 kg, 8.53 g and 18.18 g of Zn-total, Cd-total and Pb-total from 131.46 m3 of mine effluent as well as suspended solids, Fe, Cu, As, Ni, Al, B, Mn and nitrate. https://www.dora.dmu.ac.uk/handle/2086/16390
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