The presence of high levels of heavy metals in wastewaters is known to pose a serious threat to the environment. Because of their numerous industrial, domestic, agricultural, medical, and technical applications, they are widely distributed in the environment, raising worries about their possible effects on human health and the environment. In this work, a cylindrical-expanded aluminum sheet placed in an agitated vessel was used to recover copper ions from synthetic wastewater. The influence of initial Cu²⁺ ion concentration, rotating speed, solution pH, aluminum mesh number, temperature, and the presence of different types of surfactants on the kinetics of the Cu⁺² ions cementation was investigated. The current study found that the rate of copper cementation rises with increasing rotational speed, starting copper ion concentration, temperature, and the mesh number of the expanded aluminum cylindrical sheet, but the pH has no influence within range examined. Surfactants reduce the rate of cementation by a percentage ranging from 9.38 to 75.19 for cetyltrimethylammonium bromide (CTMAB) and 19.27 to 78.53 for sodium dodecyl sulfate (SDS) depending on mesh number and rpm. The mass transfer data of the present study have been correlated for by a dimensionless equation from which the rate of cementation can be estimated at various conditions within the range of the applicability of the equation.

Graphical Abstract

中文翻译：

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在装有膨胀铝圆柱板的搅拌容器中通过胶结从废液中提取铜

众所周知，废水中含有大量重金属会对环境构成严重威胁。由于其众多的工业、家庭、农业、医疗和技术应用，它们广泛分布在环境中，引发了人们对其可能对人类健康和环境产生影响的担忧。在这项工作中，使用放置在搅拌容器中的圆柱形膨胀铝板从合成废水中回收铜离子。初始Cu ²⁺离子浓度、转速、溶液pH、铝网目数、温度以及不同类型表面活性剂的存在对Cu ^{+2动力学的影响}离子胶结进行了研究。目前的研究发现，随着旋转速度、起始铜离子浓度、温度和膨胀铝圆柱板的目数的增加，铜的胶结率增加，但在所检查的范围内，pH值没有影响。根据目数和转速，表面活性剂将十六烷基三甲基溴化铵 (CTMAB) 的胶结率降低 9.38 至 75.19，十二烷基硫酸钠 (SDS) 降低胶结率 19.27 至 78.53。本研究的传质数据已通过一个无量纲方程关联起来，从该方程可以估计在方程适用范围内的各种条件下的胶结速率。

图形概要