Abstract The influence of low-frequency (50 Hz) resistive and high-frequency (13.56 MHz, radio-frequency) dielectric heating in comparison to conventional heating on the microbial degradation of pollutants in soil was studied. The investigation of the biodegradation of model substances (benzoic acid, acetic acid, glucose, sodium acetate) added to a standard soil showed no significant influence of the electrical heating methods when compared with samples heated to the same temperature in a water bath. Therefore, a hindrance of the microbial degradation could be excluded as it was done for soil respiration in a previous study. This finding is especially relevant for the application of these electrical heating methods for thermally enhanced soil bioremediation as an option for making in situ or ex situ clean-up processes more efficient.

中文翻译：

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低频和高频加热对土壤中生物降解微生物的影响：微生物降解

摘要 研究了低频（50 Hz）电阻和高频（13.56 MHz，射频）介电加热与常规加热相比对土壤中污染物微生物降解的影响。添加到标准土壤中的模型物质（苯甲酸、乙酸、葡萄糖、乙酸钠）的生物降解研究表明，与在水浴中加热到相同温度的样品相比，电加热方法没有显着影响。因此，可以排除微生物降解的障碍，因为它是在先前的研究中对土壤呼吸所做的。这一发现特别适用于将这些电加热方法应用于热增强土壤生物修复，作为使原位或异位清理过程更有效的一种选择。