文章基本信息

标题：Optimization of Copper Removal by Photovoltaic Electrocoagulation from Aqueous Solution Using Response Surface Methodology Towards Sustainable Development
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作者：Hoa Nguyen ; Lien Nguyen ; Phuong Dinh Thi Lan 等
期刊名称：Inżynieria Ekologiczna
印刷版ISSN：2081-139X
电子版ISSN：2392-0629
出版年度：2019
卷号：20
期号：7
页码：103-111
DOI：10.12911/22998993/109881
出版社：Polish Society of Ecological Engineering (PTIE)
摘要：This research aims to illustrate the optimal functions of removing copper ions in aqueous solution by the electrocoagulation process in which portable solar power generators are used as renewable energy.A solar photovoltaic cell (PV), producing approximately 48A current intensity for 4–7 h per day, which was sufficient to charge the lithium batteries completely during the day.This system was connected directly to the electrocoagulation tank.The Box-Behnken design (BBD) was applied to evaluate three effects of process factors: current density, the dose of electrolyte (NaCl), and application time.The results showed that an optimal efficiency of 99.01 % Cu removal plus an energy savings of 1.039 kWh/m3 was carried out at a current density of 4 A/m2, the dosage of NaCl (electrolyte) of 1.87 g/L, and electrolysis time of 10 min.The chemical components of the sludge produced under these optimized conditions were determined by EDX.It is illustrated that the copper ions were the main elements of sludge, and nonhazardous compounds were contained.The PV-lithium battery system is considered to be an efficient alternative energy source toward sustainable development.
关键词：photovoltaics ; electrocoagulation ; copper ; Box-Behnken design ; energy consumption ; Lithium battery ; sustainable development