Resource Recirculation Research Division, Environmental Resources Research Department, National Institute of Environmental Research, Hwangyeong-ro 42, Seo-gu, Incheon 404-708, Republic of Korea.
J Hazard Mater. 2013 Sep 15;260:157-66. doi: 10.1016/j.jhazmat.2013.05.022. Epub 2013 May 20.
Ministry of Environment, Republic of Korea (South Korea) is in progress of converting its current hazardous waste classification system to harmonize it with the international standard and to set-up the regulatory standards for toxic substances present in the hazardous waste. In the present work, the concentrations along with the trend of 13 heavy metals, F(-), CN(-) and 19 PAH present in the hazardous waste generated among various thermal processes (11 processes) in South Korea were analyzed along with their leaching characteristics. In all thermal processes, the median concentrations of Cu (3.58-209,000 mg/kg), Ni (BDL-1560 mg/kg), Pb (7.22-5132.25mg/kg) and Zn (83.02-31419 mg/kg) were comparatively higher than the other heavy metals. Iron & Steel thermal process showed the highest median value of the heavy metals Cd (14.76 mg/kg), Cr (166.15 mg/kg) and Hg (2.38 mg/kg). Low molecular weight PAH (BDL-37.59 mg/kg) was predominant in sludge & filter cake samples present in most of the thermal processes. Comparatively flue gas dust present in most of the thermal processing units resulted in the higher leaching of the heavy metals.
韩国环境部正在将其现行的危险废物分类系统进行转换，以使其与国际标准相协调，并为危险废物中存在的有毒物质制定监管标准。在本工作中，分析了韩国各种热工艺（11 种工艺）中产生的危险废物中 13 种重金属、F（-）、CN（-）和 19 种多环芳烃的浓度及其浸出特性。在所有热工艺中，Cu（3.58-209000mg/kg）、Ni（BDL-1560mg/kg）、Pb（7.22-5132.25mg/kg）和 Zn（83.02-31419mg/kg）的中值浓度均高于其他重金属。钢铁热工艺表现出最高的重金属 Cd（14.76mg/kg）、Cr（166.15mg/kg）和 Hg（2.38mg/kg）中值浓度。在大多数热工艺中存在的污泥和滤饼样品中，低分子量多环芳烃（BDL-37.59mg/kg）占主导地位。在大多数热处理装置中存在的烟道粉尘导致重金属的浸出率较高。
