Characterization of magnesium potassium phosphate mortars blended with fly ash and diatomite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00384932" target="_blank" >RIV/68407700:21110/25:00384932 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0290154" target="_blank" >https://doi.org/10.1063/5.0290154</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0290154" target="_blank" >10.1063/5.0290154</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of magnesium potassium phosphate mortars blended with fly ash and diatomite

Popis výsledku v původním jazyce

As the amount of municipal solid waste incinerated increases, so does the output from the combustion process. This includes also ash from flue gas scrubbing, which may pose a risk to the environment and human health if improperly managed due to the heavy metals (HMs) and chlorine (Cl) which it often contains. To utilize the increasing amount of municipal solid waste incineration fly ash (MSWIFA) and simultaneously reduce its environmental impact by immobilizing the present pollutants, a new matrix based on magnesium potassium phosphate cement (MKPC) and diatomite was investigated in this paper. MSWIFA and diatomite were first characterized and then added to MKPC in the amounts of 10 wt.% and 20 wt.%. The basic structural and mechanical parameters of the hardened mortars were determined. Atomic absorption spectroscopy (AAS) was used to analyze the leachates from the hardened mortars to assess the immobilization of As, Pb and Zn. For all the HMs studied, the results showed excellent immobilization capability of the developed mortars, although a decrease in their mechanical properties was observed. Nevertheless, the MKPC-diatomite based mortars formulated with MSWIFA exhibit promising properties for use in the construction industry.

Název v anglickém jazyce

Characterization of magnesium potassium phosphate mortars blended with fly ash and diatomite

Popis výsledku anglicky

As the amount of municipal solid waste incinerated increases, so does the output from the combustion process. This includes also ash from flue gas scrubbing, which may pose a risk to the environment and human health if improperly managed due to the heavy metals (HMs) and chlorine (Cl) which it often contains. To utilize the increasing amount of municipal solid waste incineration fly ash (MSWIFA) and simultaneously reduce its environmental impact by immobilizing the present pollutants, a new matrix based on magnesium potassium phosphate cement (MKPC) and diatomite was investigated in this paper. MSWIFA and diatomite were first characterized and then added to MKPC in the amounts of 10 wt.% and 20 wt.%. The basic structural and mechanical parameters of the hardened mortars were determined. Atomic absorption spectroscopy (AAS) was used to analyze the leachates from the hardened mortars to assess the immobilization of As, Pb and Zn. For all the HMs studied, the results showed excellent immobilization capability of the developed mortars, although a decrease in their mechanical properties was observed. Nevertheless, the MKPC-diatomite based mortars formulated with MSWIFA exhibit promising properties for use in the construction industry.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA23-04744S" target="_blank" >GA23-04744S: Výzkum imobilizace těžkých kovů v alternativních nízkouhlíkových kompozitech</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

THERMOPHYSICS 2024: 29th International Meeting of Thermophysics 2024

ISBN

—

ISSN

0094-243X

e-ISSN

1551-7616

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

AIP Publishing, APL, the American Institute of Physics

Místo vydání

Melville, NY

Místo konání akce

Dalešice

Datum konání akce

9. 10. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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