Comparative studies of waste incineration bottom ashes from various grate and firing systems,conducted with respect to mineralogical and geochemical methods of examination |
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| Institution: | 1. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;2. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;3. College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040, China;4. Tangshan Iron and Steel Group Company Limited, Energy and Environmental Protection Department, Tangshan 063000, China;1. Key Laboratory of Three Gorges Reservoir Region''s Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China;2. The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China;3. State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Peking University, Beijing, 100871, China;1. Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigakukatsura, Nishikyo-ku, Kyoto 615-8540, Japan;2. Department of Global Ecology, Graduate School of Global Environmental Studies, Kyoto University, Kyotodaigakukatsura, Nishikyo-ku, Kyoto 615-8540, Japan;1. Universidad Nacional de Colombia, Facultad de Minas, Escuela de Procesos y Energía, TAYEA Group, Carrera 80 No. 65-223, Medellín, Colombia;2. Smurfit Kappa, Calle 15 # 18-109, 18, Yumbo, Valle del Cauca, Colombia |
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| Abstract: | Mineralogical and geochemical techniques can be used successfully to characterize and evaluate bottom ashes produced in waste incineration. At the present time, it is not quite clear to what extent the mineral phase compositions and the content of main elements and heavy metal concentrations of bottom ashes are influenced by the conditions of combustion. Once the location of heavy metals in or with specific minerals is known, it may be considered, in the light of technical possibilities, whether a change in temperature or in the residence time of waste in the combustion chamber could be sufficient to remove these components from their mineral phases. |
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