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

SGER：使用交流电信号对受污染粘土进行电化学修复的实验室规模评估

• 批准号: 0402772
• 负责人: Milind Khire
• 金额: --
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0402772&HistoricalAwards=false
• 关键词: SGER; Lab; Scale; Evaluation; Electro

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.

[402772] Khire提出的替代修复技术——交流电（AC）可以显著降低修复成本，缩短位于雾霾区或饱和区的污染土壤或沉积物的修复周期。在拟议的研究中，两个单独的大型实验规模的粘土土壤污染：(1)菲南菲（一种多环芳烃）；(2)导线将受到幅度和频率调制的交流信号。施加的交流信号将被调制以“调谐”与土壤的净电容。这将在假设的纳米电容器充放电过程中引起氧化还原反应，该电容器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。