点击次数：

论文类型：期刊论文

发表时间：2008-09-01

发表刊物：SOIL & SEDIMENT CONTAMINATION

收录刊物：SCIE、EI、Scopus

卷号：17

期号：5

页面范围：486-496

ISSN号：1532-0383

关键字：microwave; treatment; petroleum hydrocarbon; soil; recovered oil

摘要：Microwave-induced thermal treatment of the soil contaminated with petroleum hydrocarbon is explored with a model contaminant of diesel oil. The contaminated soil is treated in the microwave field of 2.45 GHz with addition of granular activated carbon (GAC), which is used as microwave absorber for achieving an appropriate temperature to decontaminate the soil. During the treatment, the oil removed from the soil matrix is recovered by a condensation system of ice-salt bath. Some process parameters, such as GAC dose, microwave power, treating time, moisture and sample mass, are investigated. It is shown that the contaminated soil can be treated by this microwave-induced thermal process such that more than 99% contaminant removal can be achieved within 10 min. The analysis performed on the recovered oil indicates that it does not change obviously in chemical composition and physical properties, compared with the original oil.