Physicochemical Characterization of Pelletized Lime Kiln Dust as Potential Liming Material for Acidic Soils

Drapanauskaitė, Donata; Buneviciene, Kristina; Repšienė, Regina; Mažeika, Romas; Navea, Juan G.; Baltrušaitis, Jonas

doi:10.1007/s12649-020-01107-0

Cited by 10 publications

(4 citation statements)

References 58 publications

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“…1, the XRD patterns show structural and compositional similarities between the two samples. Both LKD and BA show a fraction of mullite (3Al 2 O 3 •2SiO 2 ), typically formed during the combustion of aluminosilicate components in fuels (Navea et al 2010;Borgatta et al 2016;Kim et al 2020;Drapanauskaite et al 2021). In addition, diffraction patterns due to the presence of calcium feldspars, quartz (SiO 2 ), and traces of hematite (Fe 2 O 3 ) and magnetite (Fe 3 O 4 ) can be observed.…”

Section: Characterisation Of Combustion Samplesmentioning

confidence: 99%

“…2) (Galhotra et al 2009;Fu et al 2012;Chen and Grassian 2013). These interactions between surface OH groups and the acidic media weaken surface structures and contribute to the mobilisation of iron into the aqueous phase (Zinder et al 1986;Sulzberger et al 1989;Remucal and Sedlak 2011;Ostaszewski et al 2018;Drapanauskaite et al 2021). As pH increases, these proton-driven processes become less prevalent.…”

Section: Iron Dissolutionmentioning

confidence: 99%

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Iron dissolution and speciation from combustion particles under environmentally relevant conditions

Szady,

Picarillo,

Davis

et al. 2023

Environ. Chem.

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Environmental context Iron-containing combustion particles are likely to contribute to environmental iron deposition, while atmospheric acidic processing of such particles can promote their dissolution. Here we report the surface-mediated dissolution of iron from ashes generated by biomass burning power plants and kilns. Examination of the dissolution process at several environmentally relevant pHs, suggests that pH has little impact on the fraction of bioavailable Fe(II) that dissolves into the aqueous phase, although Fe(III) is heavily pH dependent. Rationale Anthropogenic combustion particles, such as ash produced in power plants or kilns, are byproducts with limited use that accumulate in large deposits and become materials of environmental concern. While stored, these particles can be carried by winds into the atmosphere or into soil or near water bodies. Recent studies suggest that a fraction of metals present in the environment come from combustion particles. Methodology In this study, we carry out a comparative study of iron dissolution and speciation from two different combustion particles: bottom ash from a biomass-fired power plant (BA) and lime kiln dust (LKD). Samples were fully characterised and their iron leaching was investigated in aqueous suspensions under environmentally relevant acidic conditions. Iron analysis and speciation was carried out calorimetrically. Results For the combustion particles examined, the fraction of bioavailable Fe2+ is lower than Fe3+. The solubility of Fe3+ is highly dependent on pH, dropping significantly at pHs higher than 3. On the other hand, the solubility of Fe2+ from both BA and LKD was found to be relatively constant over the range of pH investigated. Discussion Iron availability from combustion particles with similar mineralogy is driven by the particle’s surface properties. While iron from LKD dissolves faster than that from BA, the initial rate of dissolution of iron remains statistically constant at pHs relevant for the atmospheric aerosol deliquescent layer, decreasing at pHs above 3. This work provides insight into the ability of combustion particles to provide iron micronutrients under different environmentally relevant acidic conditions.

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Section: Characterisation Of Combustion Samplesmentioning

confidence: 99%

Section: Iron Dissolutionmentioning

confidence: 99%

Iron dissolution and speciation from combustion particles under environmentally relevant conditions

Szady,

Picarillo,

Davis

et al. 2023

Environ. Chem.

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“…Light-absorbing organic acids are ubiquitous chromophores in natural systems and play a significant role in the daytime chemistry of the environment. [1][2][3][4][5][6][7] These organic acids are important fractions of dissolved organic matter (DOM), one of the most abundant and strongest light-absorbing compounds in environmental aqueous systems. [8][9][10][11][12][13][14] The fraction of DOM that absorbs ultraviolet (UV) and visible light is referred as chromophoric dissolved organic matter (CDOM), commonly found in the sea surface microlayer and, more recently, within sea spray aerosols.…”

Section: Introductionmentioning

confidence: 99%

pH Dependence of the speciation and optical properties of 4-benzoylbenzoic acid

Karimova,

Alija,

Mora García

et al. 2023

Phys. Chem. Chem. Phys.

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“…Chemical composition, especially Ca and Mg content, particle size, and moisture influence the neutralization behaviour. Several industrial side streams, such as ashes and lime residues, can also be considered potential liming agents since they contain large amounts of calcium and magnesium (Muse and Mitchell, 1995;Zhang et al, 2002;Pöykiö and Nurmesniemi, 2008;Skousen et al, 2013;Drapanauskaite et al, 2021;Drapanauskait ė et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Applying Industrial Side Streams in the Neutralization of Acid Generating Sulfide-Rich Sediments – the Impact on Ph and Leaching of Harmful Elements

Kronberg,

Tarvainen,

Auri

et al. 2023

Preprint

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Physicochemical Characterization of Pelletized Lime Kiln Dust as Potential Liming Material for Acidic Soils

Cited by 10 publications

References 58 publications

Iron dissolution and speciation from combustion particles under environmentally relevant conditions

Iron dissolution and speciation from combustion particles under environmentally relevant conditions

pH Dependence of the speciation and optical properties of 4-benzoylbenzoic acid

Applying Industrial Side Streams in the Neutralization of Acid Generating Sulfide-Rich Sediments – the Impact on Ph and Leaching of Harmful Elements

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