Heat treatment-enhanced bioleaching of new electroplating sludge containing high concentration of CuS and its mechanisms

Wang, Jia; Zhang, Shihao; Qian, Can; Cui, Yanchao; Shi, Gongchu; Cheng, Jun; Li, Xiang; Xin, Baoping

doi:10.1016/j.seppur.2022.122761

Cited by 11 publications

(1 citation statement)

References 42 publications

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“…Chromium exhibited a high migration rate under nitrogen conditions, while nickel showed a high migration rate under hydrogen conditions. Wang et al [51] investigated the use of thermal pretreatment on ES to enhance its bioleaching performance. The study demonstrated that thermal treatment significantly improved the bioleaching efficiency of sulfide ES.…”

Section: Heat Treatmentmentioning

confidence: 99%

Approaches for the Treatment and Resource Utilization of Electroplating Sludge

Guo,

Wang,

Liu

et al. 2024

Materials

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The disposal of electroplating sludge (ES) is a major challenge for the sustainable development of the electroplating industry. ESs have a significant environmental impact, occupying valuable land resources and incurring high treatment costs, which increases operational expenses for companies. Additionally, the high concentration of hazardous substances in ES poses a serious threat to both the environment and human health. Despite extensive scholarly research on the harmless treatment and resource utilization of ES, current technology and processes are still unable to fully harness its potential. This results in inefficient resource utilization and potential environmental hazards. This article analyzes the physicochemical properties of ES, discusses its ecological hazards, summarizes research progress in its treatment, and elaborates on methods such as solidification/stabilization, heat treatment, wet metallurgy, pyrometallurgy, biotechnology, and material utilization. It provides a comparative summary of different treatment processes while also discussing the challenges and future development directions for technologies aimed at effectively utilizing ES resources. The objective of this text is to provide useful information on how to address the issue of ES treatment and promote sustainable development in the electroplating industry.

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Section: Heat Treatmentmentioning

confidence: 99%