Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 690674

Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica


Ružičić, Stanko; Nakić, Zoran; Posavec, Kristijan; Mileusnić, Marta; Parlov, Jelena; Kovač, Zoran; Bačani, Andrea; Durn, Goran
Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica // Conference Proceedings / Klove et al. (ur.).
Prag, Češka Republika, 2014. (poster, međunarodna recenzija, sažetak, znanstveni)


CROSBI ID: 690674 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica

Autori
Ružičić, Stanko ; Nakić, Zoran ; Posavec, Kristijan ; Mileusnić, Marta ; Parlov, Jelena ; Kovač, Zoran ; Bačani, Andrea ; Durn, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Conference Proceedings / Klove et al. - , 2014

Skup
Integrated Management of Groundwater Resources and Dependent Ecosystems

Mjesto i datum
Prag, Češka Republika, 05.03.2014. - 07.03.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
water flow; transport of potentially toxic elements; unsaturated zone; Kosnica; numerical modeling

Sažetak
The subject of this study is the unsaturated zone in the area of the regional water wellfield Kosnica. The objective of this work was to build prognostic water flow model and potentially toxic element (lead, cadmium, zinc) transport model in the unsaturated zone. Research was conducted in the catchment area of the wellfield Kosnica, which is dominated by Fluvisol soil type. In order to better understand water flow and transport of potentially toxic elements in the unsaturated zone, detailed field and laboratory analyses and experiments were made. For numerical simulation HYDRUS-1D program was used. Program solves water flow using Richard's equation. Transport of potentially toxic elements is described with advection and dispersion equation. Based on laboratory analyses of soil properties, the parameters of water flow and solute transport were defined. Bulk density rises with depth while water holding capacity is the largest in the A horizon due to particle size distribution. Minimum values of hydraulic conductivity were determined in A and 4Cl/Cr horizons. Experimental results of sorption processes were used for determination of Freundlich sorption constants and exponents for individual elements. The minimum values of Freundlich's sorption constants and greatest exponents were determined in the first horizons for all three potentially toxic elements. Small differences in sorption were found between the individual elements. Based on chloride tracer experiments on soil columns in the laboratory, dispersivity was determined using Hydrus 1D inverse model. The dispersivity in AC horizon is 1 cm, and in C horizon is 1.7 cm. The correlation coefficient of the measured and simulated values of tracer concentration is 0.43 for AC horizon and 0.74 for C horizon. For the calibration of the water flow model, measured values of water content in the soil, using TDR probes for the period from 1/9/2011 to 31/10/2012, were used. Comparison of simulation results and measured water content was done. Simulated water content was less variable than the measured values. Low correlation (~0.40) coefficient between measured and simulated water content in the soil could be due to use of meteorological data from distant weather station. Hence, by using chloride tracer experiments on soil columns in the laboratory, calibration of the solute transport model was made. Using water flow and transport parameters, transport prognostic model of potentially toxic elements was created at the investigation site. Comparison of potentially toxic elements concentrations obtained by transport prognostic model at the bottom of the soil profile with their maximum allowed concentrations (MAC) limits ordinance indicate a high risk of groundwater contamination at the investigative site. However, it might be concluded that sorption processes have a major impact on the transport of potentially toxic elements in the unsaturated zone.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Rudarstvo, nafta i geološko inženjerstvo



POVEZANOST RADA


Projekti:
195-0000000-3281 - Dinamika, zaštita i eksploatacijske zalihe podzemnih voda Hrvatske (Bačani, Andrea, MZOS ) ( CroRIS)
195-1953068-2704 - Dinarski krš: geološka evolucija, mineralne sirovine, paleotla i tla (Durn, Goran, MZOS ) ( CroRIS)

Ustanove:
Rudarsko-geološko-naftni fakultet, Zagreb

Citiraj ovu publikaciju:

Ružičić, Stanko; Nakić, Zoran; Posavec, Kristijan; Mileusnić, Marta; Parlov, Jelena; Kovač, Zoran; Bačani, Andrea; Durn, Goran
Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica // Conference Proceedings / Klove et al. (ur.).
Prag, Češka Republika, 2014. (poster, međunarodna recenzija, sažetak, znanstveni)
Ružičić, S., Nakić, Z., Posavec, K., Mileusnić, M., Parlov, J., Kovač, Z., Bačani, A. & Durn, G. (2014) Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica. U: Klove et al. (ur.)Conference Proceedings.
@article{article, author = {Ru\v{z}i\v{c}i\'{c}, Stanko and Naki\'{c}, Zoran and Posavec, Kristijan and Mileusni\'{c}, Marta and Parlov, Jelena and Kova\v{c}, Zoran and Ba\v{c}ani, Andrea and Durn, Goran}, year = {2014}, keywords = {water flow, transport of potentially toxic elements, unsaturated zone, Kosnica, numerical modeling}, title = {Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica}, keyword = {water flow, transport of potentially toxic elements, unsaturated zone, Kosnica, numerical modeling}, publisherplace = {Prag, \v{C}e\v{s}ka Republika} }
@article{article, author = {Ru\v{z}i\v{c}i\'{c}, Stanko and Naki\'{c}, Zoran and Posavec, Kristijan and Mileusni\'{c}, Marta and Parlov, Jelena and Kova\v{c}, Zoran and Ba\v{c}ani, Andrea and Durn, Goran}, year = {2014}, keywords = {water flow, transport of potentially toxic elements, unsaturated zone, Kosnica, numerical modeling}, title = {Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica}, keyword = {water flow, transport of potentially toxic elements, unsaturated zone, Kosnica, numerical modeling}, publisherplace = {Prag, \v{C}e\v{s}ka Republika} }




Contrast
Increase Font
Decrease Font
Dyslexic Font