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Pregled bibliografske jedinice broj: 617517

Sediment characterization and its implications for arsenic mobilization in deep aquifers of eastern Croatia


Ujević Bošnjak, Magdalena; Casiot, Corinne; Duić, Željko; Fazinić, Stjepko; Halamić, Josip; Sipos, Laszlo; Santo, Vera; Dadić, Željko
Sediment characterization and its implications for arsenic mobilization in deep aquifers of eastern Croatia // Journal of geochemical exploration, 126/127 (2013), 55-66 doi:10.1016/j.gexplo.2012.12.017 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 617517 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Sediment characterization and its implications for arsenic mobilization in deep aquifers of eastern Croatia

Autori
Ujević Bošnjak, Magdalena ; Casiot, Corinne ; Duić, Željko ; Fazinić, Stjepko ; Halamić, Josip ; Sipos, Laszlo ; Santo, Vera ; Dadić, Željko

Izvornik
Journal of geochemical exploration (0375-6742) 126/127 (2013); 55-66

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
arsenic; groundwater; iron (hydr)oxides; reductive dissolution; eastern Croatia

Sažetak
Sediments from two boreholes drilled in the Drava and Sava depressions were analyzed to determine the origin of the elevated arsenic (As) concentrations in groundwaters in eastern Croatia. The composition of the sediments was investigated by total chemical analysis and sequential extraction. In addition, groundwater samples were taken from eight producing wells, and hydrochemical and trace element and As speciation analyses were performed. The concentrations of As in the sediment were high (up to 471 and 65.1 mg/kg, in the < 0.065 mm fraction in the boreholes in the Drava and Sava depression respectively) supporting the hypothesis proposed in a previous hydrochemical study that the Middle and Upper Pleistocene sediments are the main source of As in eastern Croatian groundwaters. Mineralogical and chemical analyses showed that sediments from the Drava and the Sava boreholes differed, supporting different origins of the sediments in the boreholes concerned: the provenance of PVc-3 sediments being the Alps, and of G1 sediments, the Bosnian mountains. In both boreholes, the large amount of As was bound to amorphous Fe and Mn (hydr)oxides (on average 32% and 60% in boreholes PVc-3 and G1 respectively). Sediment and groundwater analyses indicate that reductive dissolution of iron (hydr)oxides and concomitant release of sorbed or co-precipitated As into the groundwater is ready to occur. Since the groundwaters in eastern Croatia are generally anoxic and reducing conditions, in which S2 − and Fe2 + are stable, prevail the concentration of As released by reductive dissolution of iron (hydr)oxides may be controlled by the secondary formed sulfides which could act as a sink rather than as a source of As in the groundwater. Depending on local geomorphological and hydrogeochemical conditions, in the zones with a longer groundwater retention time, pH dependant As desorption from iron (hydr)oxides can occur and other trace elements such as Mo may become mobile.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Kemija, Rudarstvo, nafta i geološko inženjerstvo



POVEZANOST RADA


Projekti:
098-1191005-2876 - Procesi interakcije ionskih snopova i nanostrukture (Jakšić, Milko, MZOS ) ( POIROT)
125-1253008-2571 - Pročišćavanje i stabilizacija vode u velikim vodoopskrbnim sustavima (Sipos, Laszlo, MZOS ) ( POIROT)
181-1811096-1181 - Osnovna geokemijska karta Republike Hrvatske (Halamić, Josip, MZOS ) ( POIROT)
195-0000000-3281 - Dinamika, zaštita i eksploatacijske zalihe podzemnih voda Hrvatske (Bačani, Andrea, MZOS ) ( POIROT)

Ustanove:
Hrvatski zavod za javno zdravstvo,
Institut "Ruđer Bošković", Zagreb,
Nastavni zavod za javno zdravstvo "Dr. Andrija Štampar",
Fakultet kemijskog inženjerstva i tehnologije, Zagreb,
Hrvatski geološki institut,
Rudarsko-geološko-naftni fakultet, Zagreb

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com dx.doi.org

Citiraj ovu publikaciju:

Ujević Bošnjak, Magdalena; Casiot, Corinne; Duić, Željko; Fazinić, Stjepko; Halamić, Josip; Sipos, Laszlo; Santo, Vera; Dadić, Željko
Sediment characterization and its implications for arsenic mobilization in deep aquifers of eastern Croatia // Journal of geochemical exploration, 126/127 (2013), 55-66 doi:10.1016/j.gexplo.2012.12.017 (međunarodna recenzija, članak, znanstveni)
Ujević Bošnjak, M., Casiot, C., Duić, Ž., Fazinić, S., Halamić, J., Sipos, L., Santo, V. & Dadić, Ž. (2013) Sediment characterization and its implications for arsenic mobilization in deep aquifers of eastern Croatia. Journal of geochemical exploration, 126/127, 55-66 doi:10.1016/j.gexplo.2012.12.017.
@article{article, year = {2013}, pages = {55-66}, DOI = {10.1016/j.gexplo.2012.12.017}, keywords = {arsenic, groundwater, iron (hydr)oxides, reductive dissolution, eastern Croatia}, journal = {Journal of geochemical exploration}, doi = {10.1016/j.gexplo.2012.12.017}, volume = {126/127}, issn = {0375-6742}, title = {Sediment characterization and its implications for arsenic mobilization in deep aquifers of eastern Croatia}, keyword = {arsenic, groundwater, iron (hydr)oxides, reductive dissolution, eastern Croatia} }
@article{article, year = {2013}, pages = {55-66}, DOI = {10.1016/j.gexplo.2012.12.017}, keywords = {arsenic, groundwater, iron (hydr)oxides, reductive dissolution, eastern Croatia}, journal = {Journal of geochemical exploration}, doi = {10.1016/j.gexplo.2012.12.017}, volume = {126/127}, issn = {0375-6742}, title = {Sediment characterization and its implications for arsenic mobilization in deep aquifers of eastern Croatia}, keyword = {arsenic, groundwater, iron (hydr)oxides, reductive dissolution, eastern Croatia} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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