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Evaluation of low-cost sorbents as potential materials for in situ remediation of water contaminated with heavy metals (CROSBI ID 245306)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Vukojević Medvidović, Nediljka ; Daković, Aleksandra ; Ugrina, Marin ; Trgo, Marina ; Nuić, Ivona ; Marković, Marija Evaluation of low-cost sorbents as potential materials for in situ remediation of water contaminated with heavy metals // Technologica acta (Tuzla), 10 (2017), 2; 9-13

Podaci o odgovornosti

Vukojević Medvidović, Nediljka ; Daković, Aleksandra ; Ugrina, Marin ; Trgo, Marina ; Nuić, Ivona ; Marković, Marija

engleski

Evaluation of low-cost sorbents as potential materials for in situ remediation of water contaminated with heavy metals

The aim of this paper was to examine the possibilities of using various low-cost sorbents as material for permeable reactive barrier for efficient removing of lead, cadmium, copper and zinc from contaminated water. Natural zeolite (NZ), iron-modified zeolite (IMZ), apatite, concentrated apatite, kaolin and raw bentonite were examined. The batch test evaluation was used to investigate capturing of heavy metals from contaminated water onto sorbents, as well as retention strength of saturated sorbent. The change of pH values during saturation and leaching of heavy metals was performed in a slightly acidic to neutral area, confirming buffering abilities and environmental acceptability of all investigated sorbents as a material in PRB for protection of groundwater as the most valuable natural resources. The highest saturation ability towards all examined heavy metals was detected with raw bentonite and IMZ. Leaching of heavy metals at pH=2.94-2.98 was confirmed in all saturated sorbents, while at pH=6.07- 6.46 it was not detected, except of Pb and Cd in raw bentonite. From the obtaned results, the recommendation for selection of sorbent for treatment of water contaminated with lead, cadmium, cooper and zinc is given.

low-cost sorbent, leachability, permeable reactive barrier, heavy metals (zinc, copper, cadmium, lead)

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Podaci o izdanju

10 (2)

2017.

9-13

objavljeno

1840-0426

2232-7568

Povezanost rada

Kemijsko inženjerstvo

Poveznice