Somasundaram Swarnalatha, Jeon Tae-Wan, Kang Young-Yeul, Kim Woo-Il, Jeong Seong-Kyeong, Kim Yong-Jun, Yeon Jin-Mo, Shin Sun Kyoung
Environmental Technology Division, Central Leather Research Institute (Council of Scientific and Industrial Research), Adyar, Chennai, 600020, Tamil Nadu, India.
Environ Monit Assess. 2015 Jan;187(1):4200. doi: 10.1007/s10661-014-4200-0. Epub 2014 Dec 13.
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.
在韩国，建筑与拆除（C&D）废物占总废物的49.9%。在本研究中，讨论了C&D危险废物6大类（9个亚类）中存在的矿物成分、11种重金属、19种多环芳烃和7种多氯联苯（PCB）同系物的浓度及其浸出特性。在混凝土/混合水泥废物中，砷、铬（6+）、汞和锌的浓度分别在1.76 - 7.86、未检出 - 1.63、0.026 - 0.047和110.90 - 280.17毫克/千克范围内。与其他样品相比，沥青废物样品A1中菲、荧蒽、芘、苯并（a）蒽、苯并（a）芘和茚并（1,2,3 - cd）芘的浓度相对较高，且含有0.08 - 0.1%的煤焦油。C&D废物的危险性质很大程度上取决于收集来源。道路沥青废物样品A4和A5中的锌浓度高于1000毫克/千克。土壤废物样品S1中的多氯联苯总浓度较高（130微克/千克），因为它是从一个加油站场地挖出的土壤。在大多数C&D废物样品中都观察到了砷、钡、氰根（-）和氟离子（-）的浸出。
