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undergraduate thesis
Ispitivanje utjecaja karakteristika bioreaktora na proces kompostiranja biootpada
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. urn:nbn:hr:149:852542
Mrazović, Adriana
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Mrazović, A. (2024). Ispitivanje utjecaja karakteristika bioreaktora na proces kompostiranja biootpada (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:852542

Mrazović, Adriana. "Ispitivanje utjecaja karakteristika bioreaktora na proces kompostiranja biootpada." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:149:852542

Mrazović, Adriana. "Ispitivanje utjecaja karakteristika bioreaktora na proces kompostiranja biootpada." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:149:852542

Mrazović, A. (2024). 'Ispitivanje utjecaja karakteristika bioreaktora na proces kompostiranja biootpada', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 23 March 2025, https://urn.nsk.hr/urn:nbn:hr:149:852542

Mrazović A. Ispitivanje utjecaja karakteristika bioreaktora na proces kompostiranja biootpada [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2024 [cited 2025 March 23] Available at: https://urn.nsk.hr/urn:nbn:hr:149:852542

A. Mrazović, "Ispitivanje utjecaja karakteristika bioreaktora na proces kompostiranja biootpada", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:149:852542

Metadata
TitleIspitivanje utjecaja karakteristika bioreaktora na proces kompostiranja biootpada
Title (english)Investigation of the influence of bioreactor properties on the composting process of biowaste
AuthorAdriana Mrazović
MentorDajana Kučić Grgić (mentor)
Committee memberDajana Kučić Grgić (predsjednik povjerenstva)
Committee memberLidija Furač (član povjerenstva)
Committee memberMartina Miloloža (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2024-07-01, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U ovome radu, provedena su dva pokusa (P1 i P2) kompostiranja u dva reaktora (R1 i R2) različitih karakteristika, radnih volumena, Vr = 10 L. Cilj ovih pokusa bio je odrediti utječu li karakteristike reaktora na proces kompostiranja kao i sastav biootpada. Pokus P1 provodio se 16 dana, a sastav biootpada nije bio definiran, dok u pokusu P2 sastav biootpada je bio definiran i provodio se 14 dana. U određenim vremenskim periodima, ovisno o temperaturi, izuzimao se uzorak supstrata i određivani su... More fizikalno-kemijski pokazatelji (pH-vrijednost uzorka, koncentracija otopljenog kisika, električna provodnost, sadržaj vlage, hlapive i suhe tvari u uzorku) i mikrobiološki pokazatelji (ukupan broj živih bakterija i gljiva). Po završetku pokusa, u priređenim eluatima supstrata te uzorcima procjedne vode provedena je i analiza ukupnog organskog ugljika, TOC (eng. Total organic carbon) te test ekotoksičnosti pomoću morske bakterije Vibrio fischeri. Maksimalna postignuta temperatura u P1 bila je 33,4 ℃ u R1 i 36,1 ℃ u R2, dok je u P2 postignuta maksimalna temperatura od 43,3 ℃ u R1 i 44,7 ℃ u R2. pH-vrijednost supstrata u P1 porasla je s 5,13 na 7,79 u R1 i na 7,84 u R2, a tijekom drugog pokusa sa 6,11 na 8,58 u R1 i na 8,45 u R2. Rezultati testa ekotoksičnosti pokazali su da su eluati supstrata i procjedne vode u oba pokusa toksični. U pokusu P1 postignuta je konverzija od 24,99 % u R1 i 23,76 % u R2, a u P2 37,19 % u R1 i 56,92 % u R2. Less
Abstract (english)
In this paper, two experiments (P1 and P2) of composting were carried out in two reactors (R1 and R2) with different characteristics and working volume of Vr = 10 L. The aim of these experiments was to determine whether the reactor characteristics affect the composting process as well as the composition of biowaste. Experiment P1 was conducted for 16 days, and the composition of biowaste was not defined, while in experiment P2, the composition of biowaste was defined and experiment was... More conducted for 14 days. In certain periods, depending on the temperature, a sample of the substrate was taken and physicochemical indicators (pH-value of the sample, concentration of dissolved oxygen, electrical conductivity, moisture content, volatile and dry substances in the sample) and microbiological indicators (total number of living bacteria and fungi) were determined. At the end of the experiment, an analysis of total organic carbon, TOC and ecotoxicity test using the marine bacterium Vibrio fischeri were performed on substrate samples and leachate samples. The maximum temperature achieved in P1 was 33,4 ℃ in R1 and 36,1 ℃ in R2, while in P2 the maximum temperature achieved was 43,3 ℃ in R1 and 44,7 ℃ in R2. During experiment P1, the pH value of the substrate increased from 5,13 to 7,79 in R1 and 7,84 in R2, and during experiment P2 from 6,11 to 8,58 in R1 and 8,45 in R2. The results of the ecotoxicity test showed that the substrate eluates and leachate were toxic in both experiments. A conversion of 24,99 % in R1 and 23,76 % in R2 of the experiment P1 and 37,19 % in R1 and 56,92 % in R2 of the experiment P2 was achieved. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:852542
ProjectNumber: KK.01.2.1.02.0314
Title: Razvoj inovativnih sustava upotrebe geotermalnih izvora energije i energije iz biološkog otpada
Title: Development of innovative systems for the use of geothermal energy sources and energy from biological waste
Acronym: RazInoGeoBio
Leader: Ana Pilipović
Jurisdiction: eu
Funder: Europska komisija
Funding stream: European Regional Development Fund
Study programmeTitle: Environmental Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka ekoinženjerstva (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka ekoinženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-07-03 12:00:52
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