Bioremedijacija ugljenom onečišćenog tla pomoću bakterijskih kultura (Istarski ugljenokopi Raša)

master's thesis

• Title (english): Decontamination of soil polluted with coal using bacterial biomass (Istrian Raša coal mines)
• Author: Magdalena Janeš
• Mentor: Gordana Medunić (mentor)
• Mentor: Asha Lata Singh (mentor)
• Committee member: Gordana Medunić (predsjednik povjerenstva)
• Committee member: Jasenka Sremac (član povjerenstva)
• Committee member: Željka Vidaković-Cifrek (član povjerenstva)
• Committee member: Neven Bočić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2018-11-22, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Tlo prikupljeno s područja Labinštine onečišćeno je Raškim ugljenom i pepelom kao rezultat višedesetljetnih rudarskih i metalurških aktivnosti te rada TE Plomin. Dosadašnji objavljeni radovi ukazuju na povišene vrijednosti sumpora te niza potencijalno toksičnih elemenata u tragovima. Stoga je korištena bioremedijacijska metoda jer se smanjenjem potencijalne toksičnosti tla i umanjenjem negativnog utjecaja na osjetljiv krški i marinski obalni ekosustav, poboljšava kvaliteta okoliša. U ovom je radu ispitano smanjenje sumpora. Eksperiment se temelji na korištenju bakterijske kulture Ralstonia sp. koja svojim metabolizmom uklanja sumpor iz ispitivanog materijala. Rezultati su pokazali relativno veliko smanjenje u dva uzorka tla sa smanjenjem sumpora od 69,75 % u uzorku Plomin te 47,83 % u uzorku Štalije dok je uzorak ugljena pokazao relativno malo smanjenje sumpora od 5,64 %.

Abstract (english)

Soil collected from the Labin city area is contaminated with Raša coal and ash because of several decades of mining, metallurgical activities and coal combustion in a Plomin thermal power plant. Recent publications have shown elevated values of sulfur and several potentially toxic trace elements in that soil. Therefore, to improve the quality of the environment, bioremediation method was used to reduce potential soil toxicity and negative impact on the sensitive karst and marine coastal ecosystem. In this thesis removal of sulfur (in %) was examined. The experiment is based on use of bacterial cultures of Ralstonia sp. which, owing to its metabolism, remove sulfur from the investigated material. Results are showing relatively high removal in two soil samples with sulfur removal of 69,75 % in the sample Plomin, and removal of 47,83 % in the sample Štalije while coal sample showed relatively low sulfur removal of 5,64 %.

• Keywords: desulfurizacija; Ralstonia sp.; Raški ugljen; SHOS ugljen; tlo
• Keywords (english): desulfurization; Ralstonia sp.; Raša coal; soil; superhigh-organic-sulfur (SHOS) coal
• Language: croatian
• URN:NBN: urn:nbn:hr:217:827227
• Study programme: Title: Enviromental Sciences; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra struke znanosti o okolišu (magistar/magistra struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Repository: Repository of the Faculty of Science
• Created on: 2019-04-02 07:47:27