Accelerated carbonation of different size fractions of bottom ash from RDF incineration

Baciocchi, Renato; Costa, Giulia; Lategano, E; Marini, Claudio; Polettini, Alessandra; Pomi, Raffaella; Postorino, P.; Rocca, S

doi:10.1016/j.wasman.2009.11.027

Cited by 102 publications

(55 citation statements)

References 20 publications

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“…Specifically, accelerated carbonation has been applied to the following solid waste streams: residues from coal-fired power stations [14][15][16][17][18][19], oil shale combustion by-products [14,20,21], as well as lignite and wood combustion fly ash [19,22]; other types of combustion residues including deinking ash, paper mill ash [17,19,23], cement kiln/ bypass dust [19,24] and ashes from incineration of municipal solid waste, special waste and biomass [19,[25][26][27][28]; cement-based materials [29,30] and different types of steel slag [17,[31][32][33][34][35][36]; other industrial residues including byproducts from bauxite processing [19].…”

Section: Introductionmentioning

confidence: 99%

Carbonation of Stainless Steel Slag as a Process for CO2 Storage and Slag Valorization

Baciocchi

Costa

Bartolomeo

et al. 2010

Waste Biomass Valor

103

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This paper examines the main results of an accelerated carbonation treatment applied to different types and size fractions of stainless steel slag. The objectives of this work were essentially to assess the CO 2 uptake achievable by each type of slag under mild operating conditions and to investigate the effects of carbonation on the mineralogy and leaching behaviour of the residues. The following types of materials were tested: different size fractions of commingled slag, milled electric arc furnace (EAF) slag and argon oxygen decarburization (AOD) slag. Each material was thoroughly characterized in terms of elemental composition, mineralogy and leaching behaviour. Accelerated carbonation batch experiments were performed exposing humidified (with liquid to solid ratios \0.6 l/kg) slag to 100% CO 2 for operating times between 0.5 and 24 h, at controlled temperature and pressure. Maximum CO 2 uptakes of 130, 180 and 300 g CO 2 /kg slag were achieved (at 50°C and 3 bar) for the finest fraction of the mixture, the milled EAF slag and the AOD slag, respectively. The mineralogy of each type of residue showed to be affected by the treatment, exhibiting an increase in calcite concentration and a decrease in the content of specific silicate and oxide phases. The leaching behaviour of all types of carbonated slag was also modified, exhibiting a reduction by 1-2 units of the natural pH of the materials, accompanied by a decrease of Ca release and an increase of Si leaching, as a result of modified leaching-controlling phases. In conclusion, at the tested operating conditions, AOD slag was the most reactive material with CO 2 . Milling, however, proved effective in increasing the carbonation yield of the EAF slag compared to that measured for the different size fractions of the commingled slag mixture.

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Section: Introductionmentioning

confidence: 99%

Carbonation of Stainless Steel Slag as a Process for CO2 Storage and Slag Valorization

Baciocchi

Costa

Bartolomeo

et al. 2010

Waste Biomass Valor

103

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“…The increased release of Cr and other elements after ageing was observed by other authors (e.g. Baciocchi et al, 2010 andChimenos et al, 2003). Leachate from the concrete specimens with BA did not comply with release limits set by the Danish statutory order N. 1662 (2010), because of the measured release of Cr and Se.…”

Section: Mswi Ba Disposal and Reusementioning

confidence: 54%

Life cycle assessment of resource recovery from municipal solid waste incineration bottom ash

Allegrini

Vadenbo

Boldrin

et al. 2015

Journal of Environmental Management

109

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“…Baciocchi et al [113] reported the study of accelerated carbonation of varying size fractions of bottom ash from refuse-derived fuel (RDF) incinerator. Accelerated aqueous carbonation batch experiments were performed to assess the influence of temperature (30 to 50°C), CO 2 pressure (1 to 10 bar) and liquid-to-solid ratio (0 to 0.6 L kg -1 ) on reaction kinetics.…”

Section: Municipal Incinerator Ashmentioning

confidence: 99%

Mineralization of Carbon Dioxide: A Literature Review

et al. 2015

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Research on carbon capture and storage has been focused on CO 2 storage in geologic formations, with many potential risks. An alternative to conventional geologic storage is carbon mineralization, where CO 2 is reacted with metal cations to form carbonate minerals. Mineralization methods can be broadly divided into two categories: in situ and ex situ. In situ mineralization, or mineral trapping, is a component of underground geologic sequestration, in which a portion of the injected CO 2 reacts with alkaline rock present in the target formation to form solid carbonate species. In ex situ mineralization, the carbonation reaction occurs above ground, within a separate reactor or industrial process. This literature review is meant to provide an update on the current status of research on CO 2 mineralization.

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Accelerated carbonation of different size fractions of bottom ash from RDF incineration

Cited by 102 publications

References 20 publications

Carbonation of Stainless Steel Slag as a Process for CO2 Storage and Slag Valorization

Carbonation of Stainless Steel Slag as a Process for CO2 Storage and Slag Valorization

Life cycle assessment of resource recovery from municipal solid waste incineration bottom ash

Mineralization of Carbon Dioxide: A Literature Review

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