Horikoshi Satoshi, Muratani Masaru, Miyabe Kouta, Ohmura Keisuke, Hirowatari Tomoaki, Serpone Nick, Abe Masahiko
Department of Material & Life Science, Sophia University.
J Oleo Sci. 2011;60(7):375-83. doi: 10.5650/jos.60.375.
The influence of moisture content (15% w/w) on the remediation (vaporization) of trichloroethylene (TCE) present in natural sands, chosen as a TCE-polluted model system for soils, was investigated with regard to applied microwave power levels, the depth of the sand sample, and the dielectric factors. The heating process occurring in the sand samples arises through the microwave conduction loss heating and dielectric loss heating mechanisms. The characteristic relevance of the electric and magnetic microwave radiation fields to the heating mechanisms was also examined. Heating by the magnetic microwave radiation field was considerable when magnetite was added to the dry and wet sand samples as the microwave absorber. Optimal microwave conditions are reported for a single-mode microwave applicator. Near-quantitative elimination of the TCE contaminant was achieved for sandy soils within a very short time.
以天然砂作为土壤中三氯乙烯（TCE）污染的模型系统，研究了含水量（15% w/w）对其中TCE修复（蒸发）的影响，考察了施加的微波功率水平、砂样深度和介电因子。砂样中的加热过程通过微波传导损耗加热和介电损耗加热机制产生。还研究了微波电场和磁场辐射场与加热机制的特征相关性。当向干燥和潮湿的砂样中添加磁铁矿作为微波吸收剂时，微波磁场辐射场的加热效果显著。报告了单模微波施加器的最佳微波条件。在很短的时间内，砂质土壤中的TCE污染物几乎被完全去除。
