title: Polychlorinated biphenyls removal from contaminated soils using a transportable indirect thermal dryer unit: implications for emissions.
abstract: An assessment in China of the application of a transportable indirect thermal dryer unit for the remediation of soils contaminated with polychlorinated biphenyls (PCBs) demonstrated that it is well suited to remove PCBs from soils. A remarkable reduction of total PCBs in soils from 163-770 μg g(-1) to 0.08-0.15 μg g(-1) was achieved. This represented removal efficiencies of greater than 99.9% and an approximate 100% removal of the toxic equivalent of the PCBs. Furthermore, the emissions to the atmosphere from the unit were in compliance with current PCBs regulations. In conclusion, remediation of PCBs-contaminated soils based on a transportable indirect thermal dryer unit appears to be a highly efficient and environmentally sound treatment technology that has huge implications for cleaning thousands of regionally dispersed sites of PCBs contamination in China.
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: ndxue2013@gmail.com.
authors.forename: Nandong
authors.initials: N
authors.lastname: Xue
authors.affiliation: Foreign Economic Cooperation Office, Ministry of Environmental Protection, Beijing 100035, China.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Ding
authors.affiliation: Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, Oslo 0315, Norway.
authors.forename: Rolf David
authors.initials: RD
authors.lastname: Vogt
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
authors.forename: Lingli
authors.initials: L
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
authors.forename: Fasheng
authors.initials: F
authors.lastname: Li
authors.affiliation: Foreign Economic Cooperation Office, Ministry of Environmental Protection, Beijing 100035, China.
authors.forename: Guanglong
authors.initials: G
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
authors.forename: Shilei
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Taizhou Academy of Environmental Science Design Research, Taizhou 318000, China.
authors.forename: Dandan
authors.initials: D
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
authors.forename: Yunzhong
authors.initials: Y
authors.lastname: Yan
mesh_terms: D000388:Air / Q000032:analysis; D002681:China; D052918:Environmental Restoration and Remediation / Q000295:instrumentation*; D011078:Polychlorinated Biphenyls / Q000032:analysis / Q000302:isolation & purification*; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis / Q000302:isolation & purification*
chemical_list: D012987:Soil; D012989:Soil Pollutants; D011078:Polychlorinated Biphenyls
keywords: Emission; Polychlorinated biphenyls (PCBs); Removal efficiency; Soil remediation; Thermal desorption