电絮凝法去除电镀废水中重金属的初步实验室评价

IF 3.8 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2025-04-12 DOI:10.1007/s11270-025-07979-z

Zehra Gök, Hüseyin Can Gülyaşar

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引用次数: 0

摘要

本研究的主要目的是利用电絮凝（EC）技术去除金属电镀废水中的重金属离子铝（Al3+）、铬（Cr3+）、锌（Zn+2）、铅（Pb2+）和砷（As3+）。反应器中采用了Fe-Fe和Fe-Cu电极对结构。考察了电极材料、电解时间和废水pH对去除率的影响。结果表明，Fe-Cu电极对对重金属的去除率较高。在电流密度（CD）为12.6 mA/cm2、pH为6.2、EC时间为30 min的条件下，电解处理能有效去除90%以上的重金属离子（Cr3+、Zn+2、Pb2+和As3+），比能耗和比溶解电极量分别约为20 kWh/m3和0.87 kg/m3。动力学研究表明，这类重金属离子的去除符合准一阶模型。

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Preliminary Laboratory Assessment of the Removal of Heavy Metals from Metal Plating Wastewater by Electrocoagulation

The main aim of this study was the removal of heavy metal ions, namely aluminium (Al³⁺), chromium (Cr³⁺), zinc (Zn⁺²), lead (Pb²⁺) and arsenic (As³⁺) from metal plating wastewater using electrocoagulation (EC) technique. The Fe–Fe and Fe-Cu electrode pair configuration was used in the reactor. The influence of electrode material, EC time and wastewater pH on removal performance was investigated. The results showed that the heavy metal removal efficiency was higher when using the Fe-Cu electrode pair. Over 90% of heavy metal ions (Cr³⁺, Zn⁺², Pb²⁺ and As³⁺) were removed efficiently by conducting the EC treatment at current density (CD) of 12.6 mA/cm², pH of 6.2 and EC time of 30 min. These operating conditions led to specific energy consumption and specific amount of dissolved electrodes of around 20 kWh/m³ and 0.87 kg/m³, respectively. The kinetic study showed that the removal of such heavy metal ions follows pseudo first-order model.

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.