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Environmental impacts and immobilization mechanisms of cadmium, lead and zinc in geotechnical composites made from contaminated soil and paper-ash [Elektronski vir]Đurić, Marija ...Paper-ash is used for remediation of heavily contaminated soils with metals, but remediation efficiency after longer periods has not been reported. To gain insights into the mechanisms of ... immobilization of cadmium (Cd), lead (Pb), and znic (Zn), a study was performed in the laboratory experiment in uncontaminated, artificially contaminated, and remediated soils, and these soils treated with sulfate, to mimic conditions in contaminated soil from zinc smelter site. Remediation was performed by mixing contaminated soil with paper-ash to immobilize Cd, Pb, and Zn in the geotechnical composite. Partitioning of Cd, Pb, and Zn was studied over one year in seven-time intervals applying the sequential extraction procedure and complementary X-ray diffraction analyses. This methodological approach enabled us to follow the redistribution of Cd, Pb, and Zn over time, thus, to studying immobilization mechanisms and assessing the remediation efficiency and stability of newly formed mineral phases. Cd, Pb, and Zn were effectively immobilized by precipitation of insoluble hydroxides after the addition of paper-ash and by the carbonization process in insoluble carbonate minerals. After remediation, Cd, Pb, and Zn concentrations in the water-soluble fraction were well below the limiting values for inertness: Cd by 100 times, Pb by 125 times, and Zn by 10 times. Sulfate treatment did not influence the remediation efficiency. Experimental data confirmed the high remediation efficiency and stability of insoluble Cd, Pb, and Zn mineral phases in geotechnical composites.Vir: Applied sciences [Elektronski vir]. - ISSN 2076-3417 (Vol. 11, iss. 24, 2021, str. 1-15)Vrsta gradiva - e-članek ; neleposlovje za odrasleLeto - 2021Jezik - angleškiCOBISS.SI-ID - 89409283
Avtor
Đurić, Marija |
Oprčkal, Primož |
Zalar Serjun, Vesna |
Mauko Pranjić, Alenka |
Ščančar, Janez |
Milačič, Radmila |
Mladenovič, Ana
Teme
kadmij |
svinec |
cink |
papirniški pepel |
mehanizmi imobilizacije |
kontaminirana zemljina |
cadmium |
lead |
zinc |
contaminated soil |
paper ash |
immobilization mechanisms
Avtor | Đurić, Marija ... |
Naslov | Environmental impacts and immobilization mechanisms of cadmium, lead and zinc in geotechnical composites made from contaminated soil and paper-ash [Elektronski vir] |
Datum objave | 2021-12-13 |
COBISS.SI-ID | 89409283 |
Verzija objave v repozitoriju | Založnikova različica |
Licenca objave v repozitoriju | Creative Commons Priznanje avtorstva 4.0 Mednarodna |
Embargo | Takojšnja javna objava |
Projekti, iz katerih je bila financirana objava
Naziv | Akronim | Številka projekta | Financer |
---|---|---|---|
Kroženje snovi v okolju, snovna bilanca in modeliranje okoljskih procesov ter ocena tveganja | P1-0143-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Gradbeni objekti in materiali | P2-0273-2019 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Mladi raziskovalci - ARRS | 52082 |
Datoteke, ki spadajo k objavi
Povezava |
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https://www.mdpi.com/2076-3417/11/24/11822/htm |
https://dirros.openscience.si/IzpisGradiva.php?id=15868 |
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Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Đurić, Marija | 52082 |
Oprčkal, Primož | 36451 |
Zalar Serjun, Vesna | 32263 |
Mauko Pranjić, Alenka | 25599 |
Ščančar, Janez | 18359 |
Milačič, Radmila | 08314 |
Mladenovič, Ana | 05930 |
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