Peer-reviewed articles 17,970 +


Title: IMMOBILISATION OF HEAVY METALS IN FLY ASH-DIATOMITE MODIFIED MAGNESIA CEMENT COMPOSITE
IMMOBILISATION OF HEAVY METALS IN FLY ASH-DIATOMITE MODIFIED MAGNESIA CEMENT COMPOSITE

PlumX Article Metrics by Elsevier
Adam Pivak; Milena Pavlikova; Martina Zaleska; Jana Nabelkova; Zbysek Pavlik
10.5593/sgem2024/6.1/s26.38
10.5593/sgem2024/6.1
1314-2704
978-619-7603-74-3
English
24
6.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Green Buildings Technologies and Materials
Every day, human activities generate large amounts of solid waste. To ensure the quality of the environment, waste must be further treated to prevent it from accumulation in landfills. In the case of materials that cannot be recycled or reused, such as municipal solid waste, burning in waste incineration plants to generate heat or electricity appears to be the appropriate solution of such waste disposal. However, combustion processes generate residues, such as bottom or fly ash, which must be stored. Fly ash generally contains heavy metals and other contaminants. If it is disposed in landfills, the contained substances may pollute the environment with dust, leach into the soil, and contaminate the groundwater. Therefore, it is important to find an alternative way to dispose fly ash, such as incorporation into building materials, which must provide sufficient and save immobilisation of heavy metals. The objective of the presented research was to utilize fly ash from waste incineration plant and diatomaceous earth in magnesia-based composites in the form of microfillers. The investigation focused on the determination of the material properties of the hardened composites with emphasis on the ability to immobilise heavy metals. Incorporation of fly ash and diatomaceous earth resulted in increased porosity and water absorption. The mechanical strength was also affected and reduced by the incorporation of both microfillers. On the other hand, the immobilisation test showed that the heavy metals contained in the fly ash were safely immobilised in the material and thus they are not able to be further released into the environment. In this way, hazardous waste can be safely treated and reused, and the amount of waste in landfills can be reduced.
[1] Sondh S., Upadhyay D.S., Patel S., Patel R.N. A strategic review on Municipal Solid Waste (living solid waste) management system focusing on policies, selection criteria and techniques for waste-to-value, Journal of Cleaner Production, vol. 356, 131908, 2022.
[2] UNEP, Global Waste Management Outlook 2024: Beyond an age of waste – Turning rubbish into a resource, Nairobi, 2024.
[3] Czekala W., Janczak D., Pochwatka P., Nowak M., Dach J., Gases Emissions during Composting Process of Agri-Food Industry Waste, Applied Sciences, vol. 12, 9245, 2022.
[4] Arvanitoyannis I.S., 15 - Waste Management in Food Packaging Industries, Food Science and Technology, Waste Management for the Food Industries, pp 941-1045, 2008.
[5] Ungureanu E.L., Mustatea G., Toxicity of Heavy Metals, Environmental Impact and Remediation of Heavy Metals. IntechOpen. 2022.
[6] Giergiczny Z., Krol A., Immobilization of heavy metals (Pb, Cu, Cr, Zn, Cd, Mn) in the mineral additions containing concrete composites, Journal of Hazardous Materials, vol. 160, pp 247-255, 2008.
[7] Zaleska M., Pavlikova M., Pivak A., Nabelkova J., Pavlik Z., Heavy Metals Immobilization In Coal Combustion Fly Ash-Portland Cement Composites, 23rd SGEM International Multidisciplinary Scientific GeoConference, Bulgaria, pp 561-567, 2023.
[8] Waaling S.A., Provis J.L., Magnesia-Based Cements: A Journey of 150 Years, and Cements for the Future?, Chemical Reviews, vol. 7, pp 4170–4204, 2016.
[9] Haque M.A., Chen B., Research progresses on magnesium phosphate cement: A review, Construction and Building Materials, vol. 211, pp 885-898, 2019.
[10] EN 1015-10 Methods of test for mortar for masonry - Part 10: Determination of dry bulk density of hardened mortar, European Committee for Standardization (CEN), Brussels, 1999.
[11] EN 1015-11 Methods of test for mortar for masonry - Part 11: Determination of flexural and compressive strength of hardened mortar, European Committee for Standardization (CEN), Brussels, 2019.
[12] EN 13657, Characterization of waste - Digestion for subsequent determination of aqua regia soluble portion of elements, European Committee for Standardization (CEN), Brussels, 2002.
[13] Yang Y., Liu Y., Yan Z., Chen,Z., High-Temperature Resistance of Modified Potassium Magnesium Phosphate Cement, Materials, vol. 15, 8967, 2022.
[14] Zheng D., Ji T., Wang C., Sun C., Lin X., Hossain K.M.A., Effect of the combination of fly ash and silica fume on water resistance of Magnesium–Potassium Phosphate Cement, Construction and Building Materials, vol. 106, pp 415-421, 2016.
[15] Regulation No. 273/2021 Sb., Vyhlaska o podrobnostech nakladani s odpady (in Czech), Annex 5, available online at: https://www.zakonyprolidi.cz/cs/2021-273 (accessed Appril 12, 2024).
Authors greatly acknowledge the financial support received from the Czech Science Foundation under project No. 23-04744S – Research of heavy metals immobilization in alternative low-carbon composites. The conference fees and travel expenses were covered from the project of the Grant Agency of the Czech Technical University in Prague No. SGS23/149/OHK1/3T/11, which is also greatly acknowledged.
conference
https://doi.org/10.5593/sgem2024/6.1/s26.38
Download PDF
Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
263-270
1 - 7 July, 2024
website
9806
municipal waste disposal, fly ash, heavy metals, leaching, diatomite, magnesium composite

25th SGEM International Conference on Earth & Planetary Sciences


International GeoConference SGEM2025
27 June - 6 July, 2025 / Albena, Bulgaria

Read More		   

SGEM Vienna GREEN "Green Science for Green Life"


Extended Scientific Sessions SGEM Vienna GREEN
3 -6 December, 2025 / Vienna, Austria

Read More
   

A scientific platform for Art-Inspired Scientists!


The Magical World Where Science meets Art
Vienna, Austria

Read More