用钙镁过氧化物处理含多氯联苯的电气绝缘油污染土壤。
Polychlorinated biphenyls-containing electrical insulating oil contaminated soil treatment with calcium and magnesium peroxides.
机构信息
Department of Chemical Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia.
出版信息
Chemosphere. 2011 Feb;82(8):1196-201. doi: 10.1016/j.chemosphere.2010.11.053. Epub 2010 Dec 13.
Calcium and magnesium peroxides were applied for the treatment of soil contaminated by polychlorinated biphenyls-containing electrical insulating oil (Aroclor 1016). The removal of PCB-containing electrical insulating oil was achieved with the addition of either calcium peroxide or magnesium peroxide alone and dependent on dosages of the chemical. A 21-d treatment of 60% watered soil with the moderate addition (chemical/oil weight ratio of 0.005/1) of either calcium peroxide or magnesium peroxide resulted in nearly complete (96 ± 2%) oil removal, unsubstantial increase in soil pH and almost no changes in oxygen consumption and dehydrogenase activity, making it suitable for the soil decontamination.
过钙和过镁被应用于处理含多氯联苯的电力设备油（Aroclor 1016）污染的土壤。单独添加过钙或过镁，可去除含多氯联苯的电力设备油，且去除效果取决于化学物质的剂量。在 21 天的处理时间内，向 60%的湿润土壤中适度添加（化学物质/油的重量比为 0.005/1）过钙或过镁，可实现近 100%（96±2%）的除油效果，土壤 pH 值的增加微乎其微，耗氧量和脱氢酶活性几乎没有变化，非常适合土壤去污。
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