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http://dx.doi.org/10.7844/kirr.2022.31.4.56

Application of Environmental Friendly Bio-adsorbent based on a Plant Root for Copper Recovery Compared to the Synthetic Resin  

Bawkar, Shilpa K. (Metal Extraction and Recycling Division, CSIR-National Metallurgical Laboratory)
Jha, Manis K. (Metal Extraction and Recycling Division, CSIR-National Metallurgical Laboratory)
Choubey, Pankaj K. (Metal Extraction and Recycling Division, CSIR-National Metallurgical Laboratory)
Parween, Rukshana (Metal Extraction and Recycling Division, CSIR-National Metallurgical Laboratory)
Panda, Rekha (Metal Extraction and Recycling Division, CSIR-National Metallurgical Laboratory)
Singh, Pramod K. (Netaji Subhas University)
Lee, Jae-chun (Resources Recycling Research Center, Korea Institute of Geoscience and Mineral Resources (KIGAM))
Publication Information
Resources Recycling / v.31, no.4, 2022 , pp. 56-65 More about this Journal
Abstract
Copper is one of the non-ferrous metals used in the electrical/electronic manufacturing industries due to its superior properties particularly the high conductivity and less resistivity. The effluent generated from the surface finishing process of these industries contains higher copper content which gets discharged in to water bodies directly or indirectly. This causes severe environmental pollution and also results in loss of an important valuable metal. To overcome this issue, continuous R & D activities are going on across the globe in adsorption area with the purpose of finding an efficient, low cost and ecofriendly adsorbent. In view of the above, present investigation was made to compare the performance of a plant root (Datura root powder) as a bio-adsorbent to that of the synthetic one (Tulsion T-42) for copper adsorption from such effluent. Experiments were carried out in batch studies to optimize parameters such as adsorbent dose, contact time, pH, feed concentration, etc. Results of the batch experiments indicate that 0.2 g of Datura root powder and 0.1 g of Tulsion T-42 showed 95% copper adsorption from an initial feed/solution of 100 ppm Cu at pH 4 in contact time of 15 and 30 min, respectively. Adsorption data for both the adsorbents were fitted well to the Freundlich isotherm. Experimental results were also validated with the kinetic model, which showed that the adsorption of copper followed pseudo-second order rate expression for the both adsorbents. Overall result demonstrates that the bio-adsorbent tested has a potential applicability for metal recovery from the waste solutions/effluents of metal finishing units. In view of the requirements of commercial viability and minimal environmental damage there from, Datura root powder being an effective material for metal uptake, may prove to be a feasible adsorbent for copper recovery after the necessary scale-up studies.
Keywords
Adsorption; Datura root powder; Tulsion T-42; Effluent treatment; Copper; Environment; Bioadsorbent;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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