Cited by 60Heavy metals in environmentRecycling and utilization of industrial and municipal waste in materials productionCoal and Its By-products

Use of fly ash for remediation of metals polluted sediment–green remediation

Tomasevic, Dragana D., Dalmacija, Milena B., Prica, Miljana Dj., Dalmacija, Bozo D., Kerkez, Djurdja V., Bečelić-Tomin, Milena R., Roncevic, Srdjan D.·2013·Chemosphere

Abstract

The aim of this study was to determine the possibility of using fly ash and combination of kaolinite and fly ash for the solidification/stabilization (S/S) of Ni and Zn contaminated sediment from the Krivaja river basin (Serbia), which represents an extraordinary risk to the environment and belongs to the last quality class in the Serbian sediment classification. Fly ash was used as a stabilising agent because it occurs as a secondary industrial product, so in this way two types of waste are immobilized. Microwave assisted BCR sequential extraction procedure was employed to assess potential of Ni and Zn mobility and risk to the aquatic environment. In order to determine the long-term behavior of the S/S mixture, the semi-dynamic ANS 16.1 leaching test was performed. The existing leaching method was modified and acetic acid and humic acid were also used as leachants instead of deionised water, in order to simulate possible "worst case" leaching conditions for S/S waste being disposed of in a landfill environment (acid rain, floods, etc.). S/S effectiveness was evaluated by measuring the cumulative fractions of metals leached, effective diffusion coefficients - De and leachability indices - LX. X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive X-ray analyzer (EDS) along with leaching tests were implemented to elucidate the mechanisms responsible for immobilization of the Ni and Zn. The controlling leaching mechanism was found to be diffusion, in all treated samples. Overall, the test results indicated that S/S treatment was effective for immobilization of these two types of waste, and can be considered acceptable for "controlled utilization".

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Crossref · 10.1016/j.chemosphere.2013.03.063

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  • Applying coal fly ash in combination with kaolinite caused decreased Ni and Zn leachability in a contaminated sediment through solidification and stabilization.

    “For instance, applying coal fly ash in combination with kaolinite caused decreased Ni and Zn leachability in a contaminated sediment through solidification and stabilization (Tomasevic et al., 2013).”
  • Applying coal fly ash together with other amendments such as sewage sludge and clay minerals has shown better PTE immobilization performance.

    “Applying coal fly ash together with other amendments such as sewage sludge and clay minerals has also shown better PTE immobilization performance (Shaheen and Tsadilas, 2010;Tomasevic et al., 2013).”

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Authors
Tomasevic, D. D., Dalmacija, M. B., Prica, M. D., Dalmacija, B. D., Kerkez, D. V., Bečelić-Tomin, M. R., & Roncevic, S. D.
Affiliations
University of Novi Sad (RS)
Corresponding author
Tomasevic, Dragana D.
Venue
Chemosphere
Publisher
Elsevier BV
Published
2013-09
Volume
92
Issue
11
Pages
1490-1497
ISSN
0045-6535 (ISSN-L)
OpenAlex
W1971446830
Cited by
60
References
27
Citations by year
2025: 3 · 2024: 4 · 2023: 3 · 2022: 4 · 2021: 5 · 2020: 12 · 2019: 6 · 2018: 5 · 2017: 3 · 2016: 6 · 2015: 4 · 2014: 4 · 2013: 1
FWCI
3.92
Type
journal article
Language
en
Open access
closed
Locations
  • Chemosphere (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • European Commission (HUSRB 1002/214/188)
  • Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja (III43005, TR37004)
Topics
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Physical Sciences › Engineering › Building and Construction › Recycling and utilization of industrial and municipal waste in materials production
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Coal and Its By-products
Keywords
fly ash, solidification/stabilization, nickel, zinc, sediment metal contamination, sediment remediation, kaolinite, leaching behavior, diffusion-controlled leaching, leachability index, BCR sequential extraction, metal mobility, landfilling
MeSH terms
Environmental Pollutants, Kaolin, Molecular Weight, Nickel, Zinc, Risk Assessment, Geologic Sediments, Green Chemistry Technology, Coal Ash

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