Impact of Natural Weathering on Stabilization of Heavy Metals (Cu, Zn, and Pb) in MSWI Bottom Ash
Source abstract
Abstract
Bottom ash (BA) is the main residue left by municipal solid waste incineration (MSWI). As the circular economy is strengthened, the use of BA in civil engineering is increasing, but its successful use is hampered by heavy metal leaching. In this study, we investigated the influence of natural weathering (6 months) on the stabilization of heavy metals (Cu, Zn, and Pb) with different particle sizes in MSWI BA. Natural weathering is the most popular and cost-effective treatment method for BA. During this process, calcium carbonate (CaCO3) is produced, which causes a reduction in heavy metal leaching. We used the following methods in the analysis: The fractionation of BA, XRF, and XRD; an extraction test (LST EN 12457-2:2003); and AAS. The results showed that the concentrations of all elements in BA decreased during natural weathering. An analysis of the mineralogical composition showed a very high (>20%) content of calcium carbonate (CaCO3). The calcium carbonate content increased by 3.2% during weathering because the Ca(OH)2 in fractions <5.6 mm and <40.0 mm was hydrolyzed to CaCO3. Our analysis showed that the metal concentrations (Cu and Pb) in untreated MSWI bottom ash eluate exceeded the limit values, and thus it cannot be used in civil engineering. After three months of stabilization, the heavy metal concentrations were less than the limit values.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Recycling and utilization of industrial and municipal waste in materials production · Coal and Its By-products · Concrete and Cement Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Environment Protection and Water Engineering, Vilnius Gediminas Technical University, LT-10223 Vilnius, Lithuania
References (41)
Show source-provided references
1. Optimizing large-scale ageing of municipal solid waste incinerator bottom ash prior to the advanced metal recovery: Phase I: Monitoring of temperature, moisture content, and CO2 level10.1016/j.wasman.2018.12.019 ↗
2. Assessment of the total content and leaching behavior of blends of incinerator bottom ash and natural aggregates in view of their utilization as road base construction material10.1016/j.wasman.2019.08.012 ↗
3. Classification of municipal solid waste components for thermal conversion in waste to energy research10.1016/j.fuel.2014.12.015 ↗
4. Modeling the formation of the quench product in municipal solid waste incineration (MSWI) bottom ash10.1016/j.wasman.2016.03.019 ↗
5. Characteristics and application potential of municipal solid waste incineration (MSWI) bottom ashes from two waste-to-energy plants10.1016/j.conbuildmat.2015.02.033 ↗
6. LCA of management strategies for RDF incineration and gasification bottom ash based on experimental leaching data10.1016/j.wasman.2015.05.032 ↗
7. Innovative treatment trains of bottom ash (BA) from municipal solid waste incineration (MSWI) in Germany10.1016/j.wasman.2016.09.004 ↗
8. Mineralogical characterization of municipal solid waste incineration bottom ash with an emphasis on heavy metal-bearing phases10.1016/j.jhazmat.2011.01.070 ↗
9. Leaching behaviour of incineration bottom ash in a reuse scenario: 12years-field data vs. lab test results10.1016/j.wasman.2017.08.013 ↗
10. Valorization of MSWI bottom ash through ceramic glazing process: A new technology10.1016/j.jclepro.2011.10.029 ↗
11. Effects of two different accelerated carbonation processes on MSWI bottom ash10.1016/j.psep.2017.08.028 ↗
12. Quantification of the resource recovery potential of municipal solid waste incinera-tion bottom ashes10.1016/j.wasman.2014.05.003 ↗
13. LCA of heavy metals leaching from landfilled sewage sludge ash10.3846/jeelm.2021.15594 ↗
14. Sivula, L. (2012). Characterisation and Treatment of Waste Incineration Bottom Ash and Leachate, Jyväskylä University Printing House.10.1016/j.wasman.2012.01.002 ↗
15. (2000). Commission Decision of 3 May 2000 Replacing Decision 94/3/EC Establishing a List of Wastes Pursuant to Article 1(a) of Council Directive 75/442/EEC on waste and Council Decision 94/904/EC Establishing a List of Hazardous Waste Pursuant to Article 1(4) of Council Directive 91/689/EEC on Hazardous Waste, 15. 005 (Standard No. 2000/532/EC).
16. 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 leaching10.1016/j.jenvman.2013.06.033 ↗
17. Accelerated carbonation of different size fractions of MSW IBA and the effect on leaching10.1016/j.wasman.2015.04.003 ↗
18. Leaching optimization of municipal solid waste incineration ash for resource recovery: A case study of Cu, Zn, Pb and Cd10.1016/j.wasman.2015.10.003 ↗
19. Use of washed municipal solid waste incinerator bottom ash in pervious concrete10.1016/j.cemconcomp.2013.01.001 ↗
20. Metal leaching from MSWI bottom ash as affected by salt or dissolved organic matter10.1016/j.wasman.2008.03.017 ↗
21. Use of stabilized bottom ash for bound layers of road pavements10.1016/j.jenvman.2013.02.037 ↗
22. Use of vitrified MSWI bottom ashes for concrete production10.1016/j.wasman.2008.07.014 ↗
23. 2006, Accelerated carbonation for treatment of MSWI bottom ash10.1016/j.jhazmat.2006.01.059 ↗
24. Aggregate material formulated with MSWI bottom ash and APC fly ash for use as secondary building material10.1016/j.wasman.2012.09.015 ↗
25. Biogas upgrading using MSWI bottom ash: An integrated municipal solid waste management10.1016/j.renene.2015.02.006 ↗
26. Influence of operational conditions, waste input and ageing on contaminant leaching from waste incinerator bottom ash: A full-scale study10.1016/j.chemosphere.2009.06.040 ↗
27. Understanding the chemical and mineralogical properties of the inorganic portion of MSWI bottom ash10.1016/j.wasman.2010.03.010 ↗
28. A large-scale field trial experiment to derive effective release of heavy metals from incineration bottom ashes during construction in land reclamation10.1016/j.scitotenv.2018.05.026 ↗
29. Mineralogical study of secondary mineral phases from weathered MSWI bottom ash: Implication for the modeling and trapping of heavy metals10.1016/j.apgeochem.2004.05.006 ↗
30. 2004, The leaching behavior of incinerator bottom ash as affected by accelerated ageing10.1016/j.jhazmat.2004.06.009 ↗
31. Characterisation and partition of valuable metals from WEEE in weathered municipal solid waste incineration bottom ash, with a view to recovering10.1016/j.jclepro.2019.01.313 ↗
32. Limitations and quality upgrading techniques for utilization of MSW incineration bottom ash in engineering applications—A review10.1016/j.conbuildmat.2018.09.174 ↗
33. Weathered bottom ash from municipal solid waste incineration: Alkaline activation for sustainable binders10.1016/j.conbuildmat.2022.126983 ↗
34. (2001). Tests for Geometrical Properties of Aggregates-Part 2: Determination of Particle Size Distribution-Test Sieves, Nominal Size of Apertures (Standard No. LST EN 933-2:2001).
35. (2012). Tests for Geometrical Properties of Aggregates-Part 1: Determination of Particle Size Distribution-Sieving Method (Standard No. LST EN 933-1:2012).
36. Methods for Determination of Moisture-Oven Drying10.1021/ac60056a003 ↗
37. (2003). Characterization of Waste-Leaching-Compliance Test for Leaching of Granular Waste Materials and Sludges-Part 2: One Stage Batch Test at a Liquid to Solid Ratio of 10 L/kg for Materials with Particle Size below 4 mm (without or with Size Reduction) (Standard No. LST EN 12457-2:2003).
38. (2004). Water Quality-Determination of Trace Elements Using Atomic Absorption Spectrometry with Graphite; Furnace (Standard No. LST EN ISO 15586:2004).
39. Carbonation processes in municipal solid waste incinerator bottom ash and their effect on the leaching of copper and molybdenum10.1016/S0883-2927(02)00015-X ↗
40. Carbon dioxide sequestration in municipal solid waste incinerator (MSWI) bottom ash10.1016/j.jhazmat.2005.07.033 ↗
41. (2016). Dėl Atliekų Deginimo Įrenginiuose ir Bendro Atliekų Deginimo Įrenginiuose Susidariusių Pelenų ir Šlako Tvarkymo Reikalavimų Patvirtinimo (Standard No. Lapkričio 25 d, Įsakymas Nr, D1-805). (In Lithuanian).