Assessment of magnesium potassium phosphate cement matrix for heavy metals immobilization

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F24%3A00372990" target="_blank" >RIV/68407700:21110/24:00372990 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0197852" target="_blank" >https://doi.org/10.1063/5.0197852</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0197852" target="_blank" >10.1063/5.0197852</a>

Result language
angličtina
Original language name
Assessment of magnesium potassium phosphate cement matrix for heavy metals immobilization
Original language description
Industrial wastes are often contaminated with heavy metals and thus constitute a danger to the environment. One of the safe ways to treat such contaminated wastes is to immobilize heavy metals by using various binders. Suitable binders may include magnesium potassium phosphate cement (MKPC), which is also referred to as a low-carbon material. This study evaluates the ability of the MKPC matrix to simultaneously immobilize three heavy metals, namely Ba, Pb and Zn ions. The heavy metals were applied to the mixing water in the form of soluble salts at a concentration of 2.5% of the heavy metal by weight of the binder. The basic structural and mechanical properties of the hardened specimens were determined and an evaluation of the parameters for the transport of liquid water was carried out. It was found that the presence of metals had a negative effect on the mechanical properties. However, the MKPC exhibited an excellent low water absorption coefficient, and the addition of heavy metals further reduced this parameter by up to 60%, promoting overall immobilization. This makes MKPC a very interesting material for immobilizing heavy metals in artificially contaminated materials, which could then be used in a variety of construction applications.
Czech name
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Czech description
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Project
<a href="/en/project/GA23-04744S" target="_blank" >GA23-04744S: Research of heavy metals immobilization in alternative low-carbon composites</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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