Investigation of accelerated carbonation for the stabilisation of MSW incinerator ashes and the sequestration of CO<sub>2</sub>

Bertos, M Fernandez; Li, X; Simons, S.; Hills, Colin D.; Carey, Paula

doi:10.1039/b401872a

Cited by 161 publications

(113 citation statements)

References 15 publications

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“…Li et al (2007) studied the influence of L/S ratio on accelerated carbonation of municipal solid waste incineration fly ashes and found that the optimum L/S ratio was 0.3 by weight of ash at ambient temperature. Fernández-Bertos et al (2004a) made similar observations, finding that the optimum L/S ratio was 0.2-0.3 for APC residues and 0.3-0.4 for BA residues. Moreover, Chang et al (2011a, b) suggested that the optimum L/S ratio for carbonation of steelmaking slag is 10:1-20:1 (mL/g).…”

Section: Performance Evaluationsupporting

confidence: 68%

“…Uibu et al (2011) found that Ca 2 SiO 4 and Ca 3 Mg(SiO 4 ) 2 were the main CO 2 binding components in electric arc furnace (EAF) slag according to quantitative XRD analysis, and the main product was calcite. A similar conclusion was made by Fernández-Bertos et al (2004a), which indicated that C-S-H becomes rapidly activated by CO 2 where carbonation is accomplished by hydration at first and is followed, after some delay, by secondary carbonation as shown in Eq. (17).…”

Section: Process Chemistrysupporting

confidence: 55%

“…The crystal volume of calcium carbonate is approximately 11.7 percent more than that of calcium hydroxide (Ishida and Maekawa, 2000). In general, the pore structures of solid wastes are thought to become finer with carbonation, thus leading to a solid of lower porosity, lower tortuosity, and lower pore area with calcite infilling the pore space after carbonation (Ishida and Maekawa, 2000;Fernández-Bertos et al, 2004a).…”

Section: Formulation Of Carbonate Precipitationmentioning

confidence: 99%

“…Table 6 summarizes the description of alkaline solid wastes for accelerated carbonation and utilization. The most common methods for disposal of MSW, for example, are: landfill (82%), recycling or composting (11%) and thermal treatment (7%) (Fernández-Bertos et al, 2004a). On the other hand, the treatment approach for BOF residue is dumping and partial reuse as an aggregate for civil engineering due to its good technical properties (Geiseler, 1996;De Windt et al, 2011).…”

Section: Performance Evaluationmentioning

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: Performance Evaluationsupporting

confidence: 68%

Section: Process Chemistrysupporting

confidence: 55%

Section: Formulation Of Carbonate Precipitationmentioning

confidence: 99%

Section: Performance Evaluationmentioning

confidence: 99%

See 2 more Smart Citations

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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“…[12][13][14] Complete carbonization can decrease the leaching of metals by 80 %. [14][15][16] Previous research [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] has shown that metal stabilization processes are more efficient if the treatment of the waste dust is conducted over an extended period of time and at high CO 2 concentrations.…”

Section: Introductionmentioning

confidence: 99%

Neutralization of waste filter dust with CO2

Kračun¹,

Anžel²,

Zemljič³

2015

Mater. Tehnol.

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In this paper we report on the possibility of neutralizing filter dust from Talum Livarna d.o.o. The filter dust that remains after cleaning flue gas with the classification number of waste 10 10 09* is alkaline and contains heavy metals, non-metals, organic pollutants, and, therefore, has the properties of hazardous waste. The possibility of neutralizing this dust with CO2 was studied. The results showed that the treatment successfully lowered the pH value between the limits 6 and 9, which is within the legal constraints of pollution for strong acidic or alkaline waste. The contents of the hazardous substances were lowered, i.e., As, Cu, Ba, Zn, Cd, Cr, Ni, Pb, Sn, Mn and V, with percolation values that are below the level of the prescribed threshold-limit values for substances that allows their disposal in non-hazardous waste landfills. Only the percolation values of Sb, Cd, Mo and Se exceed the prescribed threshold limit values of substances that allow their disposal in inert waste landfills. The XRD analysis after the neutralization of the filter dust using CO2 showed no presence of CaO. The neutralized filter dust can be land filled as a stabilized and unreactive waste in landfills for nonhazardous wastes. Their properties also offer the possibility for incorporating them into some other material or product, such as the production of new composite materials, their use in construction products and perhaps cements or usage in backfills. Keywords: hazardous waste, filter dust, neutralization, stabilization, chemical properties Raziskali smo mo`nost nevtralizacije filtrskega prahu iz podjetja Talum Livarna, d. o. o. Filtrski prah po~i{~enju dimnih plinov s klasifikacijsko {tevilko odpadka 10 10 09* je alkalen, vsebuje te`ke kovine, nekovine, organska onesna`evala, zato ima lastnosti nevarnega odpadka. Filtrski prah smo nevtralizirali s CO2, da je nastal prete`no amorfen produkt. Po obdelavi smo uspe{no zni`ali pH-vrednost v meje med 6 in 9, kar je v dovoljenem obmo~ju za odpadke, onesna`ene z mo~no kislino ali bazo. Prav tako je bila zmanj{ana vsebnost nevarnih snovi, in sicer As, Cu, Ba, Zn, Cd, Cr, Ni, Pb, Sn, Mn in V, tako da so izlu`evalne vrednosti pod mejo predpisanih parametrov izlu`ka in je tako dovoljeno odlaganje na odlagali{~ih za nenevarne odpadke. Samo izlu`evalne vrednosti Sb, Cd, Mo in Se {e prekora~ujejo predpisane mejne vrednosti, ki so dovoljene za odlaganje na odlagali{~ih za inertne odpadke. XRD-analiza po nevtralizaciji filtrskega prahu s CO2 ni pokazala prisotnosti CaO. Nevtraliziran filtrski prah se lahko odlo`i kot stabiliziran in nereaktiven odpadek na odlagali{~ih nenevarnih odpadkov. Glede na lastnosti obstaja mo`nost predelave in uporabe v koristne namene, npr. za proizvodnjo novih kompozitnih materialov, gradbenih izdelkov, morda cementa ali za zasipavanje.

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Formation of Layered Double Hydroxides in Self‐Purification of Polynary Metal Electroplating Wastewaters for Effective Removal of Anionic Dye

Zhou¹,

Qian²,

Liu³

et al. 2012

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Investigation of accelerated carbonation for the stabilisation of MSW incinerator ashes and the sequestration of CO₂

Cited by 161 publications

References 15 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

Neutralization of waste filter dust with CO2

Formation of Layered Double Hydroxides in Self‐Purification of Polynary Metal Electroplating Wastewaters for Effective Removal of Anionic Dye

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Investigation of accelerated carbonation for the stabilisation of MSW incinerator ashes and the sequestration of CO2

Cited by 161 publications

References 15 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

Neutralization of waste filter dust with CO2

Formation of Layered Double Hydroxides in Self‐Purification of Polynary Metal Electroplating Wastewaters for Effective Removal of Anionic Dye

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Product

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Investigation of accelerated carbonation for the stabilisation of MSW incinerator ashes and the sequestration of CO₂