title: Characterization of wastes from construction and demolition sector.
abstract: In Republic of Korea, construction and demolition (C&D) waste accounts for 49.9% of the total waste. In the present work, the mineralogical composition, the concentrations of 11 heavy metals, 19 PAH, and 7 polychlorinated biphenyl (PCB) congeners present in the 6 broad category (9 subcategories) of C&D hazardous waste were discussed along with their leaching characteristics. In concrete/mixed cement waste, the concentrations of As, Cr(6+), Hg, and Zn were in the range of 1.76-7.86, ND-1.63, 0.026-0.047, and 110.90-280.17 mg/kg, respectively. The asphalt waste sample A1 possessed relatively high concentrations of phenanthrene, fluoranthene, pyrene, benz(a)anthracene, benzo(a)pyrene, and indeno(1,2,3-cd)pyrene comparing to the other samples and it contains 0.08-0.1% of coal tar. Hazardous nature of the C&D wastes greatly depends on the source of the collection. Zn concentration was above 1000 mg/kg for road asphalt waste samples A4 and A5. Total PCB concentration were high in the soil waste sample S1 (130 μg/kg) as it was the excavated soil obtained from the premises of an oil station. Leaching of As, Ba, CN(-), and F(-) were observed in most of the C&D waste samples.
authors.affiliation: Environmental Technology Division, Central Leather Research Institute (Council of Scientific and Industrial Research), Adyar, Chennai, 600020, Tamil Nadu, India.
authors.forename: Swarnalatha
authors.initials: S
authors.lastname: Somasundaram
authors.forename: Tae-Wan
authors.initials: TW
authors.lastname: Jeon
authors.forename: Young-Yeul
authors.initials: YY
authors.lastname: Kang
authors.forename: Woo-Il
authors.initials: WI
authors.lastname: Kim
authors.forename: Seong-Kyeong
authors.initials: SK
authors.lastname: Jeong
authors.forename: Yong-Jun
authors.initials: YJ
authors.lastname: Kim
authors.forename: Jin-Mo
authors.initials: JM
authors.lastname: Yeon
authors.forename: Sun Kyoung
authors.initials: SK
authors.lastname: Shin
mesh_terms: D060389:Construction Industry / Q000706:statistics & numerical data*; D004784:Environmental Monitoring; D006256:Hazardous Waste / Q000032:analysis*; D007220:Industrial Waste / Q000032:analysis* / Q000706:statistics & numerical data; D019216:Metals, Heavy / Q000032:analysis; D011078:Polychlorinated Biphenyls / Q000032:analysis; D056910:Republic of Korea
chemical_list: D006256:Hazardous Waste; D007220:Industrial Waste; D019216:Metals, Heavy; D011078:Polychlorinated Biphenyls