Comparative study of ageing, heat treatment and accelerated carbonation for stabilization of municipal solid waste incineration bottom ash in view of reducing regulated heavy metal/metalloid leaching

Santos, Rafael M.; Mertens, Gilles; Salman, Muhammad; Çizer, Özlem; Gerven, Tom Van

doi:10.1016/j.jenvman.2013.06.033

Cited by 121 publications

(53 citation statements)

References 46 publications

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“…Although there is more than enough natural ore on Earth to sequester the CO 2 emissions from all fossil fuels, cost-effective methods for accelerating carbonation are still needed (Lackner, 2003). Since alkaline solid wastes are relatively cheaper feedstock than natural ores, the CO 2 fixation capacity of those solid wastes through carbonation has been extensively evaluated (Bonenfant et al, 2008;Teir, 2008;Pan et al, 2013b;Santos et al, 2013a). As shown in Fig.…”

Section: Integrated Alkaline Wastes Treatment With Co 2 Fixation and mentioning

confidence: 99%

Challenges and Perspectives on Carbon Fixation and Utilization Technologies: An Overview

Ping

Pan

Pei

et al. 2016

Aerosol Air Qual. Res.

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This paper provides an overview of state-of-the-art carbon fixation and utilization technologies. Several carbon capture processes, such as chemical absorption and chemical looping, are reviewed and illustrated. In addition, various types of chemicals and fuels that can be produced using concentrated CO 2 (or other forms) through physical, chemical, or enhanced biological methods are presented. Among those carbon conversion methods, two promising approaches, i.e., microalgae ponds and accelerated carbonation using alkaline solid wastes, are reviewed in detail. Microalgae are fast-growing and ubiquitous photosynthetic organisms, which are rich in protein and can be converted to biodiesel fuel. They have been recognized as an alternative feedstock not only because they use CO 2 from the atmosphere but also due to their high lipid content per biomass compared to other plants. In this study, for the microalgae technologies, the principles and applications of open pond systems are discussed in terms of both technological and economic considerations. The important operation parameters affecting productivity of microalgae, including light intensity, temperature, mixing, CO 2 delivery, accumulation of dissolved oxygen, and salinity are summarized. On the other hand, accelerated carbonation technologies are an attractive and feasible approach to integrating alkaline solid waste treatment with CO 2 fixation and utilization. In this study, the performance of various carbonation processes is critically reviewed from the perspectives of process design, energy consumption, and environmental benefits. The carbonated solid product can also be used as supplementary cementitious materials in a blended cement or concrete block. Accordingly, the performance of cement pastes with carbonated product, in terms of workability and strength development, are evaluated from the cement chemistry point of view. Cement manufacturing is an energy and material intensive process, with high annual production. It is noted that, through the accelerated carbonation process, significant indirect environmental benefits can be realized.

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Section: Integrated Alkaline Wastes Treatment With Co 2 Fixation and mentioning

confidence: 99%

Challenges and Perspectives on Carbon Fixation and Utilization Technologies: An Overview

Ping

Pan

Pei

et al. 2016

Aerosol Air Qual. Res.

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“…Carbonation could also act positively in the immobilization of heavy metals, such as Cd, Pb, and Cr, leaching from the alkaline solid waste by sorption in the newly formed products. The leaching of Pb, Zn, Cr, Cu, and Mo is markedly reduced upon carbonation for both APC and BA (Fernandez Bertos et al, 2004a;Arickx et al, 2006;Cappai et al, 2012;Santos et al, 2013b). Cd and Pb have a strong affinity with calcium carbonate and also form complexes with Fe and Al (hydr-)oxides (Rendek et al, 2006).…”

Section: Integrated Ex-situ Carbonation For Alkaline Wastesmentioning

confidence: 99%

An Innovative Approach to Integrated Carbon Mineralization and Waste Utilization: A Review

Pan

Chiang

Chang

et al. 2015

Aerosol Air Qual. Res.

101

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Carbon dioxide (CO 2 ) emission reduction in industry should be a portfolio option; for example, the carbon capture and utilization by mineralization (CCUM) process is a feasible and proven technology where both CO 2 capture and alkaline waste treatment occur simultaneously through an integrated approach. In this study, the challengeable barriers and significant breakthroughs of CCUM via ex-situ carbonation were reviewed from both theoretical and practical perspectives. Recent progress on the performance of various carbonation processes for different types of alkaline solid wastes was also evaluated based on CO 2 capture capacity and carbonation efficiency. Moreover, several process intensification concepts such as reactor integration and co-utilization with wastewater or brine solution were reviewed and summarized. In addition, the utilization of carbonated products from CCUM as green materials including cement, aggregate and precipitate calcium carbonate were investigated. Furthermore, the current status of worldwide CCUM demonstration projects within the ironand steelmaking industries was illustrated. The energy consumption and cost analyses of CCUM were also evaluated.

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“…[13][14][15][16][17][18][19][20][21][22][23], that lead occurs both as a major element in some phases (minerals) and in the form of solid solution in phases in which calcium is abundant. Lead thus associates itself with calcium as well as iron.…”

Section: Forms Of Occurrence For Leadmentioning

confidence: 99%

Stabilization of lead in incineration fly Ash by ageing and carbonatation in contact with moisture and air

Sjöblom¹,

Zietek²,

Gaude³

et al. 2016

Int. J. SDP

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Residues from incineration of waste vary considerably in quality not only depending on the composition of the waste and the incineration system, but also on the extent and duration of contact with moisture and carbon dioxide in the atmosphere. Lead has a rather varying abundance and an even more varying availability in ash as determined by leach tests. Fresh fly ash from Jönköping Energi AB has a relatively low content of lead in comparison with other similar ashes but a somewhat high leach rate in relation to the total amount. Thus, in determining the pertinent destinations for this ash, it is appropriate to assess the availability after prolonged contact with moisture and air. It was found that the leaching decreased by up to around three orders of magnitude after such conditioning, which will what take place in a landfill over time. The effect was confirmed by pilot tests. The paper also describes the ash chemistry and possible mechanisms for the stabilization. It is concluded that the stabilization can facilitate landfilling.

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Comparative study of ageing, heat treatment and accelerated carbonation for stabilization of municipal solid waste incineration bottom ash in view of reducing regulated heavy metal/metalloid leaching

Cited by 121 publications

References 46 publications

Challenges and Perspectives on Carbon Fixation and Utilization Technologies: An Overview

Challenges and Perspectives on Carbon Fixation and Utilization Technologies: An Overview

An Innovative Approach to Integrated Carbon Mineralization and Waste Utilization: A Review

Stabilization of lead in incineration fly Ash by ageing and carbonatation in contact with moisture and air

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