title: Continuous CO(2) capture and MSWI fly ash stabilization, utilizing novel dynamic equipment.
abstract: Novel dynamic equipment with gas in and out continuously was developed to study the capture capacity of CO(2). Municipal solid waste incineration (MSWI) fly ash has a high capture rate of CO(2) in CO(2)-rich gas. Fly ash can sequester pure CO(2) rapidly, and its capacity is 16.3 g CO(2)/100 g fly ash with no water added and 21.4 g CO(2)/100 g fly ash with 20% water added. For simulated incineration gas containing 12% CO(2), the capture rate decreased and the capacity was 13.2 g CO(2)/100 g fly ash with no water added and 18.5 g CO(2)/100 g fly ash with 20% water added. After accelerated carbonation, the C and O contents increased, indicating CO(2) capture in the fly ash; CO(2) combines with Ca(OH)(2) to form CaCO(3), which increased the CaCO(3) content from 12.5 to 54.3%. The leaching of Pb markedly decreased from 24.48 to 0.111 mg/L.
authors: Department of Environmental Science and Engineering, Tsinghua University, Beijing, PR China. jianguoj@mail.tsinghua.edu.cn
authors: Jian-guo
authors: JG
authors: Jiang
authors: Xue-juan
authors: XJ
authors: Du
authors: Mao-zhe
authors: MZ
authors: Chen
authors: Chang
authors: C
authors: Zhang
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry*; D060729:Coal Ash / Q000737:chemistry*; D017745:Incineration / Q000295:instrumentation*; D012037:Refuse Disposal
chemical_list: D060729:Coal Ash; D002245:Carbon Dioxide