A process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacts a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds.
一种从土壤、沉积物、泥浆、污泥中提取卤代有机化合物,特别是多
氯联苯的工艺,以及用
烷烃和
水可混溶的
酒精混合物组成的萃取介质接触受污染的土壤样品,使化合物脱卤的工艺。有机化合物溶解在萃取介质中,而萃取介质则通过土壤中向上流动的
水从土壤中分离出来。萃取介质漂浮到
水面上,然后被分离出来。随后,将含有卤化有机污染物的萃取介质置于电离辐射下,使化合物发生放射性脱卤反应。