Utjecaj bure na kvalitetu tla u okružju laguna tvornice glinice Obrovac

master's thesis

• Title (english): Impact of Bora wind on soil quality in the lagoon environment of the factory alumina Obrovac
• Author: Ivan Dogan
• Mentor: Ivica Kisić (mentor)
• Committee member: Ivica Kisić (predsjednik povjerenstva)
• Committee member: Željka Zgorelec (član povjerenstva)
• Committee member: Aleksandra Bensa (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (General Agronomy); Zagreb
• Defense date and country: 2022-06-03, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Na obrovačkom području u lagunama bivše tvornice Jadral preko 40 godina nalazi se otpadni
crveni mulj. Snažna bura koja puše s Velebita rasprostire preostali crveni mulj iz laguna oko
same tvornice te zagađuje okolna tla i rijeku Zrmanju. Na tlima koja se nalaze neposrednu uz
lagune nastupilo je taloženje opasnog materijala. Kemijskom analizom utvrđen je stupanj
onečišćenja i negativne posljedice nesaniranih laguna pritom uzevši u obzir pružanje smjera
puhanja vjetra. Izračunati su sljedeći parametri: pH vrijednost; elektrovodljivost te
koncentracija teških metala (As, Cr, Cu, Ni, Mn, Pb) te koeficijenti korelacije na 38 uzoraka
uzetih s 24 lokacije. Izračunom koeficijenata korelacije utvrđena je povezanost između sjeverne
i južne strane za teške metale As, Mn, Cr i Pb te korelacija između pH i EC vrijednosti. Dobiveni
rezultati sjeverne strane slabijeg onečišćenja označavali su referente uzorke. U zaključku ovisno
o stupnju onečišćenja predložene su mjere izgradnje prirodne ili mehaničke barijere kako bi se
zaustavilo daljnje širenje onečišćenja putem vjetra te metoda fitoremedijacije kako bi se
smanjila vrijednosti teških metala u tlu.

Abstract (english)

On the area of city Obrovac the lagoon of the former Jadral factory stands waste material for
over 40 years after the factory closure. The wind bora blowing from Velebit spreads the
remaining red mud from the lagoons to surrounding soils of factory and the Zrmanja River. On
soils next to the lagoons, residue of hazardous red mug has still lagged and research aims to
determine the negative consequences of red mud using chemical soil analysis taken directly
around factory, while keeping on wind direction. The following parameters were determined:
pH; electroconductivity and concentration heavy metals (As, Cr, Cu, Ni, Mn, Pb) on 38 samples
taken from 24 locations. The calculation revealed the correlation between the north and south
sides for heavy metals As, Mn, Cr and Pb and the correlation between pH and EC values. The
obtained results of the northern side with less pollution indicated the sample referents. In
conclusion, depending on the degree of contamination, proposes measures to build a natural or
mechanical barrier to stop the further spread of wind pollution and phytoremediation methods
to reduce the values of heavy metals in the soil.

• Keywords: bura; crveni mulj; laguna; onečišćenje
• Keywords (english): bora; red mud; lagoon; contamination
• Language: croatian
• URN:NBN: urn:nbn:hr:204:283787
• Study programme: Title: Agroecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka agroekologije (magistar/ magistra inženjer/inženjerka agroekologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-06-27 09:21:20