The effects of accelerated carbonation on CO2 uptake and metal release from incineration APC residues

Baciocchi, Renato; Costa, Giulia; Bartolomeo, Elisabetta Di; Polettini, Alessandra; Pomi, Raffaella

doi:10.1016/j.wasman.2009.07.012

Cited by 90 publications

(48 citation statements)

References 35 publications

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“…The basic goal of accelerated carbonation is to mimic the natural weathering processes in which CO 2 reacts with metal oxide bearing materials to form stable and insoluble carbonates, with calcium-or magnesium-oxide being the most favourable metal oxide in reacting with CO 2 . Besides that, carbonation is an exothermal reaction, so energy consumption and costs may be reduced by its inherent properties (Lackner, 2003;Eloneva et al, 2008a;Baciocchi et al, 2009a). In all cases, carbonation must provide base ions, such as monovalent sodium and potassium, or divalent calcium and magnesium ions to neutralize the carbonic acid (Costa et al, 2007;Gerdemann et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

352

193

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CO 2 capture, utilization, and storage (CCUS) is a promising technology wherein CO 2 is captured and stored in solid form for further utilization instead of being released into the atmosphere in high concentrations. Under this framework, a new process called accelerated carbonation has been widely researched and developed. In this process, alkaline materials are reacted with high-purity CO 2 in the presence of moisture to accelerate the reaction to a timescale of a few minutes or hours. The feedstock for accelerated carbonation includes natural silicate-minerals (e.g., wollastonite, serpentine, and olivine) and industrial residues (e.g., steelmaking slag, municipal solid waste incinerator (MSWI) ash, and air pollution control (APC) residues). This research article focuses on carbonation technologies that use industrial alkaline wastes, such as steelmaking slags and metalworking wastewater. The carbonation of alkaline solid waste has been shown to be an effective way to capture CO 2 and to eliminate the contents of Ca(OH) 2 in solid residues, thus improving the durability of concrete blended with the carbonated residues. However, the operating conditions must be further studied for both the economic viability of the technology and the optimal conditions for CO 2 reaction.

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Section: Introductionmentioning

confidence: 99%

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

352

193

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“…Carbonation of APC residues prior to treatment may not be a consistent occurrence but has significant implications for the properties of the residues (Baciocchi et al 2009;Cappai et al 2012;Li et al 2007;Wang et al 2010). Unless care is taken to control the process, carbonation will provide another mechanism by which residue characteristics and therefore behaviour will concentrations (at l/s=10) covered ranges similar to those which can be observed when comparing results reported throughout previous literature (Cl: 96,300-~500,000 mg/kg; SO 4 : 7000-20,490 mg/kg) (Baciocchi et al 2009;Cappai et al 2012;Geysen et al 2004b;Lampris et al 2009;Li et al 2007;Quina et al 2008b). The mineralogical variability of the residues also had implications for their respective ANC and pH buffering behaviour.…”

Section: Characterisation Of As-received Residuesmentioning

confidence: 99%

“…Variability in the concentration of minor and trace elements, chloride and sulphate salts, and the quantity of residual scrubber present can also be seen throughout the literature concerned with APC residue composition and treatment methods e.g. (Baciocchi et al 2009;Cappai et al 2012;De Boom and Degrez 2012;Dyer et al 2006;Geysen et al 2004b;Li et al 2007;Quina et al 2008b;Wang et al 2010). Residue properties vary not only between facilities but also over time when collected from a single facility (Environment Agency 2002;Quina et al 2008b).…”

Section: Introductionmentioning

confidence: 97%

Waste incinerator residue treatment: variability implications

Shirley

Hawthorne²,

Black³

2015

Proceedings of the Institution of Civil Engineers - Waste and R

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Air pollution control residues are a hazardous waste, collected when controlling the flue gas emissions created within modern energy from waste (EfW) incinerators. They are inherently variable with regards to mineralogy and morphology. However, this variability is frequently neglected throughout the scientific literature concerned with their management. This work characterises residues collected from five different UK facilities and highlights the implications of their compositional variability for the performance of products resulting from a stabilisation/solidification treatment. It is demonstrated that the variability is of significance for the mineralogy and several key engineering properties of the products, and links between the properties of the residues and the behaviour of the products are shown. Residue variability should be considered when researching technical management options. Treatments are likely to require modification in order to satisfy performance envelopes for individual batches of residue.

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“…(The equivalence pH point of calcium carbonate is around 8.3 and calcium bicarbonate around pH 5.5). (Baciocchi et al 2008) The carbonation process has been extensively studied in the characterization studies of cement-stabilized waste materials (Stegemann 2002). Moreover, several studies on the uptake of carbon dioxide to alkaline materials (e.g.…”

Section: Figure 4 Examples Of Ph Measured In Leachate Of Bottom Ash mentioning

confidence: 99%

Acid neutralization capacity of waste - specification of requirement stated in landfill regulations

Wahlström¹,

Laine-Ylijoki²,

Kaartinen³

et al. 2009

TemaNord

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The effects of accelerated carbonation on CO2 uptake and metal release from incineration APC residues

Cited by 90 publications

References 35 publications

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Waste incinerator residue treatment: variability implications

Acid neutralization capacity of waste - specification of requirement stated in landfill regulations

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