Accelerated carbonation for treatment of MSWI bottom ash

Arickx, S.; Gerven, Tom Van; Vandecasteele, Carlo

doi:10.1016/j.jhazmat.2006.01.059

Cited by 130 publications

(95 citation statements)

References 17 publications

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“…Paper mill waste (calcium mud) Green sludge dreg Lime mud Lime slaker grits Bird and Talberth, 2008;Pérez-López et al, 2008et al, 2008bKodama et al, 2008;Baciocchi et al, 2009b;Doucet, 2010;Chang et al, 2011a, b), municipal solid waste incinerator (MSWI) ashes (Arickx et al, 2006;FernandezBertos et al, 2004b;Costa et al, 2007;Li et al, 2007;, air pollution control (APC) residues (Baciocchi et al, 2009c;Montes-Hernandez et al, 2009;Nyambura et al, 2011), cement kiln dust (Huntzinger et al, 2009a, b), red mud (RM) (Khaitan et al, 2009;Yadav et al, 2010), paper mill waste (Pérez-López et al, 2008) and even concrete (Haselbach, 2009), etc., as CO 2 adsorbents. Fig.…”

Section: Alkaline Wastes As Adsorbentsmentioning

confidence: 99%

“…In addition, there are both chemical and physical changes in the structure and surface characteristics of steelmaking slag properties after carbonation (Chang et al, 2011a). Fernández-Bertos et al (2004a) found that the carbonated product is a solid of lower porosity, lower tortuosity, and lower pore area (Li et al, 2007; Lime (CaO); Portlandite (Ca(OH) 2 ); Ca(OH)Cl; Gehlenite (Ca 2 Al 2 SiO 7 ) (Li et al, 2007) 90% of fly ash produced in UK was sent to landfill (Li et al, 2007) Reuse as construction aggregates (Rendek et al, 2006) More than 50% is used as a secondary building material, road bases, and civil engineering structures in Europe (Rendek et al, 2006) Replace the sand or gravel fraction in concrete bricks or Reuse as secondary raw construction material (Arickx et al, 2006).…”

Section: Utilization Of Carbonated Residuesmentioning

confidence: 99%

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

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

359

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: Alkaline Wastes As Adsorbentsmentioning

confidence: 99%

Section: Utilization Of Carbonated Residuesmentioning

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.

359

193

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“…However, the emission of bioavailable HMs during the incineration process is of concern (Belevi and Moench, 2000;Song et al, 2004;Hopes et al, 2003;Renoux et al, 2001). The HMs can be stabilized in the incinerator residues (or slag) (Arickx et al, 2006;Xu et al, 2008), and trapping of the HMs into the slag could reduce emission of the metals and make the incineration process environmentally friendly. The bioavailability of the HMs, which will affect the ability to dispose of the incinerator slag, can be determined from the partitioning of the HMs in the slag (Chou et al, 2009;Fraser and Lum, 1983).…”

Section: Introductionmentioning

confidence: 99%

Fixation and partitioning of heavy metals in slag after incineration of sewage sludge

Chen

Yan

2012

Waste Management

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“…As these materials are often associated with CO 2 point source emissions and tend to be chemically more unstable than geologically derived minerals [9], they require a lower degree of pre-treatment and less energy-intensive operating conditions to enhance carbonation yields [9,10]. Furthermore, after stabilization by accelerated carbonation, the leaching behavior of alkaline waste materials such as municipal solid waste incinerator (MSWI) bottom ash [11,12], steel slag [4,9,13,14], air pollution control (APC) residues [15,16] and ashes from coal and oil shale power plants [17][18][19] is improved. This allows the usage of stabilized waste materials in civil engineering applications or for safer final disposal to landfill.…”

mentioning

confidence: 99%

MINERAL TRAPPING OF CO₂VIA OIL SHALE ASH AQUEOUS CARBONATION: CONTROLLING MECHANISM OF PROCESS RATE AND DEVELOPMENT OF CONTINUOUS-FLOW REACTOR SYSTEM

Uibu¹,

Kuusik²

2009

Oil Shale

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Ash containing considerable amounts of free lime as the most active component requires stabilization to assure safe landfilling. Using CO 2 from flue gases as a neutralizing agent, also the emission of CO 2 is diminished. The most extensive effect could be achieved by treating ash-water suspensions with CO 2 -containing gas. As even minute amounts of extraneous substances present in water influence the extent and rate of lime solubility in water, the behavior of lime as the key component of ash in various conditionswas studied and the mechanism of process deceleration was proposed. As the next step, a laboratory-scale continuous-flow reactor system for aqueous carbonation of oil shale ash and main considerations for industrial pilotscale plant design were developed. IntroductionEmission of greenhouse gases and safe deposition/utilization of solid wastes are among the most serious problems caused by extensive usage of lowgrade solid fuels in the world heat and power production. CO 2 emissions could be decreased by reducing the usage of fossil energy sources, improving energy efficiency and/or by more intensive implementation of carbon capture and storage (CCS) technologies. CO 2 sequestration by mineral carbonation, considering both natural minerals [1,2] and alkali wastes [3][4][5] as CO 2 sorbents, is a prospective option.Carbonation of minerals is similar to natural rock weathering and involves permanent storage of CO 2 under the thermodynamically stable form of calcium and magnesium carbonates [6]. Mg-and Ca-rich silicates such as olivine, serpentine, talc and wollastonite are available worldwide and have * Corresponding author: e-mail maiuibu@staff.ttu.ee Mineral Trapping of CO2 via Oil Shale Ash Aqueous Carbonation 41the potential of sequestrating the total amount of CO 2 emitted from the combustion of all the available fossil fuel reservoirs [7]. Unfortunately, because of very slow reaction rates the carbonation of natural minerals requires chemical additives and/or elevated pressures and temperatures [8].One way of bypassing some draw-backs of accelerated carbonation of primary alkaline earth minerals is using alkaline waste residues from thermal processes or from construction and demolition activities as a feedstock. As these materials are often associated with CO 2 point source emissions and tend to be chemically more unstable than geologically derived minerals [9], they require a lower degree of pre-treatment and less energy-intensive operating conditions to enhance carbonation yields [9,10]. Furthermore, after stabilization by accelerated carbonation, the leaching behavior of alkaline waste materials such as municipal solid waste incinerator (MSWI) bottom ash [11,12], steel slag [4,9,13,14], air pollution control (APC) residues [15,16] and ashes from coal and oil shale power plants [17][18][19] is improved. This allows the usage of stabilized waste materials in civil engineering applications or for safer final disposal to landfill.The energy sector of the Republic of Estonia is predominantly (up to 67...

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Accelerated carbonation for treatment of MSWI bottom ash

Cited by 130 publications

References 17 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

Fixation and partitioning of heavy metals in slag after incineration of sewage sludge

MINERAL TRAPPING OF CO₂VIA OIL SHALE ASH AQUEOUS CARBONATION: CONTROLLING MECHANISM OF PROCESS RATE AND DEVELOPMENT OF CONTINUOUS-FLOW REACTOR SYSTEM

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Accelerated carbonation for treatment of MSWI bottom ash

Cited by 130 publications

References 17 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

Fixation and partitioning of heavy metals in slag after incineration of sewage sludge

MINERAL TRAPPING OF CO2VIA OIL SHALE ASH AQUEOUS CARBONATION: CONTROLLING MECHANISM OF PROCESS RATE AND DEVELOPMENT OF CONTINUOUS-FLOW REACTOR SYSTEM

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MINERAL TRAPPING OF CO₂VIA OIL SHALE ASH AQUEOUS CARBONATION: CONTROLLING MECHANISM OF PROCESS RATE AND DEVELOPMENT OF CONTINUOUS-FLOW REACTOR SYSTEM