Optimization of 2-D Electrode Configuration for Electrokinetic Remediation

A. Alshawabkeh, R. J. Gale, E. Ozsu-Acar, R. Bricka
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引用次数: 86

Abstract

A practical evaluation of one- and two-dimensional applications of electric fields for in situ extraction of contaminants is provided. The evaluation is based on contaminant transport by electroosmosis and ion migration. Parameters evaluated include electrode requirements, effectiveness of electric field distribution, remediation time, and energy expenditure. Formulation is provided for calculating cost components of the process, including electrode, energy, chemicals, posttreatment, fixed, and variable costs. Equations are also provided for evaluating optimum electrode spacings based on energy and time requirements. The derivations show that spacing between same-polarity electrodes is as significant in cost calculations and in process effectiveness as that between anodes and cathodes. Decreasing the same-polarity electrode spacing to half the anode-cathode spacing will result in a 100% increase in electrode requirements, but will decrease the area of the ineffective electric field by one half. Selection ...
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电动力学修复的二维电极结构优化
提供了电场用于原位提取污染物的一维和二维应用的实际评估。评价是基于电渗透和离子迁移的污染物迁移。评估的参数包括电极要求、电场分布的有效性、修复时间和能量消耗。提供了用于计算该过程成本组成部分的公式,包括电极,能源,化学品,后处理,固定和可变成本。还提供了基于能量和时间要求来评估最佳电极间距的方程。推导结果表明,同极性电极之间的间距在成本计算和工艺效率方面与阳极和阴极之间的间距同样重要。将同极性电极间距减小到正极-阳极间距的一半将导致电极需求增加100%,但将使无效电场面积减少一半。选择…
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