Sustainable environmental technology to reclaim copper from industrial effluent

Geosystem Engineering Pub Date : 2024-01-01 DOI:10.1080/12269328.2023.2297898

Shilpa Kalamani Bawkar, Rukshana Parween, Kyoungkeun Yoo, Pramod Kumar Singh, R. Jyothi, Manis Kumar Jha

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Abstract

ABSTRACT Electronic manufacturing industries use copper in highest proportion in metals due to its unique properties. But there is a gap in demand and supply of this metal to the industry due to its huge requirement and lack of its proper recycling of copper containing equipments. Also, effluent generated from these industries carries substantial amount of this metal, which get discharged, and loss of metals to the environment. Present paper discusses about valuable copper metal recovery from industrial effluent in powder form using novel process flow-sheet. At start, bio-adsorptiontechnique was used to recover copper from industrial effluent due to its advantages like low cost, feasible method showing faster kinetics. Datura root powder was found to be potential bio-adsorbent for copper recovery from effluent having 997 mg/g adsorption capacity. It follows second-order rate reaction and Freundlich adsorption isotherm with 0.9711 regression coefficient. Further, copper-enriched solution obtained from this technique was subjected to cementation process using scrap iron rods to get copper powder. This can be used to produce value added products using its ingots. This is one of the approaches towards waste to wealth creation having tremendous potential to get commercialized.

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从工业废水中回收铜的可持续环保技术

摘要由于铜的独特性能，电子制造业使用铜的比例在金属中最高。但是，由于对铜的需求量巨大，且缺乏对含铜设备的适当回收，因此该行业对这种金属的供需存在缺口。此外，这些工业产生的废水中含有大量的铜金属，这些废水被排放到环境中，造成金属流失。本文讨论了利用新型工艺流程从工业废水中回收有价值的粉末状铜金属。由于生物吸附技术具有成本低、方法可行、动力学速度快等优点，因此一开始就被用来从工业废水中回收铜。研究发现，曼陀罗根粉是一种潜在的生物吸附剂，可从废水中回收铜，其吸附容量为 997 毫克/克。它遵循二阶速率反应和 Freundlich 吸附等温线，回归系数为 0.9711。此外，利用该技术获得的富铜溶液还可通过使用废旧铁棒进行固化处理来获得铜粉。铜粉可用于生产增值产品。这是变废为宝的方法之一，具有巨大的商业化潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Geosystem Engineering

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