Dielectrophoresis: Applications to Polluted Soil Remediation

9362043霍德科这个项目的目标是评估通过应用不同频率和幅度的非均匀脉冲直流和交流电场来净化土壤和含水层的可行性，并特别注意土壤和含水层环境中遇到的复杂的物理和化学情况。将进行实验室规模的实验，以确定最大去除速率的适当电气制度；这项工作将包括使用真实的土壤样本。设计的实验将寻求以有利的方式实现电动诱导的电渗透通量和pH梯度。这是一项基于NSF 93-18，小型企业创新研究(SBIR)计划征集而提交的提案的第一阶段奖励。预计结果将确定该方法在何种条件下可用作处理被危险有机废物污染的地下地层的一次或二次技术。这种地下处理的吸引力和商业潜力主要是基于这样一个事实，即该技术是一种针对不同物理相，特别是不混相的有机污染物的原位技术。

9362043 Hodko The objective of this project is to evaluate the feasibility of soil and aquifer decontamination by application of nonhomogeneous pulsed DC and AC electric fields of different frequencies and amplitudes paying particular attention to the complex physical and chemical situation encountered in soil and aquifer environments. Laboratory scale experiments will be conducted to determine appropriate electrical regimes for maximum removal rates; the work will include the use of real soil samples. The experiment of design will seek to bring about electrokinetically- induced electroosmotic flux and pH gradients in advantageous ways. This is a Phase I award based on a proposal submitted in response to NSF 93-18, Small Business Innovation Research (SBIR) Program Solicitation. Results are expected to identify conditions under which the method could be used either as a primary or secondary technology for the treatment of underground formations contaminated with hazardous organic wastes. The attractiveness and commercial potential of this subsurface treatment is based primarily on the fact that this technology is an in situ technology targeting organic contaminants in various physical phases, especially the immiscible phase.