| 喷射床电沉积法处理含锌废水性能及动力学研究 |
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| 引用本文： | 张铭川,陈熙,王雯婧,徐新阳.喷射床电沉积法处理含锌废水性能及动力学研究[J].环境工程,2023,41(2):37-42. |
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| 作者姓名： | 张铭川 陈熙 王雯婧 徐新阳 |
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| 作者单位： | 1. 东北大学 资源与土木工程学院, 沈阳 110819; |
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| 基金项目： | 国家自然科学基金项目(51408104) |
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| 摘 要： | 采用自主设计的喷射床电沉积装置处理模拟采矿含锌废水。通过改变喷射床电沉积处理过程的pH值、电流强度、含锌废水浓度以及鼓入氮气等实验参数，研究不同处理条件下喷射床电沉积反应器对含锌废水的处理效果。结果表明：废水Zn2+浓度为1000 mg/L时，采用粒径为1.8 mm铜微粒电极，反应过程pH值为4.5,恒电流强度为15 A,向废水中鼓入600 L/h氮气的条件下处理效果最好，电沉积反应180 min后，Zn2+去除率达到49.44%,平均电流效率为41.63%。并以实验结论为基础，通过动力学模拟分析，建立了单金属离子电沉积过程的动力学模型，验证了实验结果的可靠性和准确性。
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| 关 键 词： | 喷射床 电沉积 含锌废水 微粒电极 动力学模拟 |
| 收稿时间： | 2022-02-11 |
RESEARCH ON TREATMENT PERFORMANCE AND DYNAMICS OF ZINC CONTAINING WASTEWATER BY SPRAY BED ELECTRO-DEPOSITION |
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| Institution: | 1. School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China;2. School of Environment, Tsinghua University, Beijing 100084, China |
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| Abstract: | Experiments were carried out by using self-designed spray bed electro-deposition devices to treat zinc-containing wastewater under different conditions including pH value, current intensity, zinc ions concentration and bubbling nitrogen. The effect of the spray bed electro-deposition system on treatment of zinc-containing wastewater was investigated and the parameters were optimized. The results showed that the optimized condition was as follows:the particle size of electrode of 1.8 mm, zinc ions concentration of 1000 mg/L, wastewater pH value of 4.5, current value of 15 A and bubbling nitrogen of 600 L/h, then the removal rate of zinc ions was up to 49.44% and the current efficiency was 41.63%. On this basis, the dynamic model of single metal ion electro-deposition was established by dynamic simulation analysis, which proved the reliability of the measured data and the accuracy of the experimental results. |
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