DOI: 10.1016/j.jcou.2017.01.002
Scopus记录号: 2-s2.0-85009080457
论文题名: New method for carbon dioxide mineralization based on phosphogypsum and aluminium-rich industrial wastes resulting in valuable carbonated by-products
作者: Romero-Hermida I. ; Santos A. ; Pérez-López R. ; García-Tenorio R. ; Esquivias L. ; Morales-Flórez V.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 18 语种: 英语
英文关键词: Aluminium industry
; Carbon sequestration
; Industrial waste
; Katoite
; Phosphogypsum
Scopus关键词: Aluminum
; Calcium carbonate
; Carbon dioxide
; Carbonation
; Gypsum
; Industrial emissions
; Mineralogy
; Radioactive wastes
; Trace elements
; Aluminium anodising
; Aluminium hydroxide
; Aluminium industry
; Carbon dioxide mineralization
; Carbon mineralization
; Carbon sequestration
; Katoite
; Phosphogypsum
; Industrial wastes
英文摘要: Graphical abstract: A new carbon mineralization method was designed based on a sequestration agent synthesised exclusively from industrial wastes. Phosphogypsum waste from the fertiliser industry was dissolved into caustic aqueous waste from the aluminium anodising industry. The resulting precipitate consisted of katoite (Ca3Al2(OH)12, a Si-free hydrogrossular solid solution end-member of the Al-containing hydrogarnet) and thenardite (Na2SO4); the latter easily removed by rinsing with water. The carbonation performance of this katoite-rich sequestration agent was evaluated using two different methods, by bubbling in aqueous media and by weathering. Both procedures yielded high carbonation efficiencies (80% and 100%, respectively), and resulted in a solid precipitate composed primarily of calcite (CaCO3) and aluminium hydroxide (Al(OH)3). Priority attention was given to the transfer of trace elements and radionuclides of the uranium series typically present in the phosphogypsum. Results confirmed that the traces were transferred to resulting final solid carbonate at concentrations similar to those present in the raw phosphogypsum. In conclusion, these carbonated minerals would trap substantial amounts of CO2 and produce final materials with similar civil engineering uses to those proposed for current phosphogypsum wastes. This work offers new methods for jointly managing specific industrial wastes oriented to more sustainable industrial processes and controlling CO2 emissions. © 2017 Elsevier Ltd. 资助项目: Ministerio de Ciencia e Innovación
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52795
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Romero-Hermida I.,Santos A.,Pérez-López R.,et al. New method for carbon dioxide mineralization based on phosphogypsum and aluminium-rich industrial wastes resulting in valuable carbonated by-products[J]. Journal of CO2 Utilization,2017-01-01,18