Geokemijska karakterizacija tala pod utjecajem industrijskih odlagališta otpada

master's thesis

• Title (english): Geochemical characterization of soils influenced by industrial waste
• Author: Karla Pribanić
• Mentor: Kristina Pikelj (mentor)
• Mentor: Maja Ivanić (komentor)
• Committee member: Kristina Pikelj (predsjednik povjerenstva)
• Committee member: Željka Fiket (član povjerenstva)
• Committee member: Nenad Buzjak (član povjerenstva)
• Committee member: Jasna Lajtner (član povjerenstva)
• Committee member: Hana Fajković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2024-09-23, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract

Odlagalište otpadne lužine i crvenog mulja na području nekadašnje tvornice Jadral u Obrovcu i odlagalište čeličnog otpada tvornice čelika u Sisku su odlagališta industrijskih otpada s visokim udjelom metala. U ovom radu, geokemijski je karakterizirano 10 uzoraka tla sakupljenih u okolici navedenih odlagališta. Na svakom uzorku provedena je granulometrijska, mineraloška i multielementna analiza te površinsko fizikalno-kemijski karakterizacija tla određivanjem specifične površine i kapaciteta kationske izmjene. Granulometrijska analiza provedena je metodom laserske difrakcije. Mineralni sastav sedimenta istražen je metodom rendgenske difrakcije u prahu na rendgenskom difraktometru s CuKα zračenjem i grafitnim monokromatorom. Kapacitet kationske izmjene određen je amonij selektivnom elektrodom. Specifične površine uzoraka određene su na instrumentu FlowSorb II 2300. Multielementna analiza provedena je na trostrukom kvadrupolnom spektrometru masa uz induktivno spregnutu plazmu. U svim uzorcima analizirane su koncentracije 11 elemenata (As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Sb, V, Zn). Unatoč visokim koncentracijama metala koje su pokazali rezultati u uzorcima tla na oba lokaliteta, zbog manje površinske reaktivnosti čestica u istraživanim tlima na području Željezare Sisak, kao i vezanosti metala u tlima na području Jadrala u Fe/Mn okside koji se u normalnim okolišnim uvjetima ne izlužuju u okoliš, može se zaključiti da, ukoliko ne dođe do značajnije promjene okolišnih uvjeta, čestice tla iz oba područja istraživanja vjerojatno neće otpustiti značajnije koncentracije metala u okoliš.

Abstract (english)

Waste base and red mud disposal site near the former Jadral factory in Obrovac and steel waste disposal site of steel plant in Sisak are disposal sites of industrial waste with a high metal content. In this paper, 10 soil samples collected near the mentioned disposal sites were geochemically characterized. On each sample was performed granulometrical, mineralogical and multielement analysis, as well as surface physico-chemical characterization of the soil by determining the specific surface area and cation exchange capacity. Granulometric analysis was performed using the laser diffraction method. Mineral composition of the sediment was investigated using X-ray powder diffraction on an X-ray diffractometer with CuKα radiation and a graphite monochromator. Cation exchange capacity was determined by an ammonium selective electrode. Specific surfaces of the samples were determined on a FlowSorb II 2300 instrument. Multielement analysis was performed on a triple quadrupole mass spectrometer with inductively coupled plasma. Concentrations of 11 elements (As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Sb, V, Zn) were analyzed in all samples. Despite the high concentrations of metals that were shown in the soil samples at both locations, due to the lower surface reactivity of the particles in the investigated soils in the Sisak steel plant area, as well as the binding of metals in the soils in the Jadral area to Fe/Mn oxides that do not leach out into the environment under normal environmental conditions, it can be concluded that, unless significant changes in environmental conditions occur, soil particles from both research areas will probably not allow significant concentrations of metals in the environment.

• Keywords: industrijski otpad; tlo; metali; Jadral; Sisak
• Keywords (english): industrial waste; soil; metals; Jadral; Sisak
• Language: croatian
• URN:NBN: urn:nbn:hr:217:400417
• Study programme: Title: Environmental Sciences-University graduate programme; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra struke znanosti o okolišu (sveučilišni/a magistar/magistra struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-02-05 07:25:44