SGER: Lab-Scale Evaluation of Electro Chemical Remediation of a Contaminated Clayey Soil Using Alternating Current Electrical Signal

0402772 Khire提议的使用交流电的替代补救技术可大大降低补救成本，缩短位于渗流区或饱和区的受污染土壤或沉积物的补救处理期。在拟议的研究中，两个独立的大规模实验室规模的测试粘土污染：（1）菲（PAH）;（2）铅将受到振幅和频率调制的交流信号。所施加的AC信号将被调制为与土壤的净电容“调谐”。这将在由带负电荷的粘土颗粒和吸附在粘土颗粒上的带正电荷的阳离子组成的假设的纳米电容器的充电和放电期间引起氧化还原反应。

0402772 Khire The proposed alternative remediation technology using alternating current (AC) may significantly reduce the remediation cost and shorten the treatment period for remediation of contaminated soils or sediments located in vadoze or saturated zones. In the proposed research, two separate large-scale bench-scale tests on a clayey soil contaminated with: (1) phenanthrere (a PAH); and (2) lead will be subjected to amplitude and frequency modulated AC signal. The applied AC signal will be modulated to "tune up" with the net capacitance of the soil. This will cause oxidation-reduction reactions during the charging and discharging of the hypothesized nano-capacitors made up of negatively charged clay particles and positively charged cations adsorbed on the clay particles.