Metode predobrade lignocelulozne biomase za povećanje prinosa bioplina

undergraduate thesis

• Title (english): Insight into pretreatment methods of lignocellulosic biomass to Increase biogas yield: current state, challenges, and opportunities
• Author: Lana Klaić
• Mentor: Sunčica Beluhan (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Biochemical Engineering); (Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology); Zagreb
• Defense date and country: 2022-09-19, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

Brzi rast stanovništva, povećanje potražnje za energijom i globalno zatopljenje doveli su do poboljšanih istraživanja kojima je cilj povećati dostupnost alternativnih izvora energije uz manji trošak. Lignocelulozni izvori, dostupni u izobilju u okolišu, mogli bi se uspješno pretvoriti u bioplin i imaju veliki potencijal kao zamjena za fosilna goriva. Lignocelulozna biomasa je otporna na biorazgradnju zbog svoje heterogene strukture, što je jedno od značajnih ograničenja njezine upotrebe kao sirovine za proizvodnju bioplina. Iako se koriste različite metode predtretmana, poznato je da određeni međuprodukti, primjerice furfurali koji nastaju tijekom tretmana kiselinama, mogu imati negativan učinak na mikroorganizme uključene u nastajanje bioplina. U ovom su radu, osim isticanja učinkovitosti i ograničenja različitih metoda prethodne obrade s inženjerskog, kemijskog i biokemijskog gledišta, raspravljene strategije povećanja prinosa bioplina optimiranjem predtretmana kako bi se smanjili inhibicijski učinci na mikroorganizme.

Abstract (english)

Rapid population growth, increase in energy demand and global warming led to the improvement of further research to enhance the availability of alternative sources of energy at a faster rate and lower cost. Organic sources are available in abundance in the environment and can be successfully converted to biofuel which holds great potential as a substitute to fossil fuels. Lignocellulosic biomass is recalcitrant due to its heterogeneous structure, which is a significant limitation of its use as a feedstock for biogas production. Intermediaries formed during different pretreatment methods commonly show an unfavourable effect on microorganisms involved in biogas formation. This work will highlight the efficiency and limitations of the different pretreatment methods from an engineering, chemical, and biochemical point of view, as well as discuss the strategies to increase biogas yield by way of amending pretreatments to lower inhibitory effects on microorganisms and by optimizing process conditions.

• Keywords: lignocelulozna biomasa; metode predobrade; ograničenja predtretmana; bioplin
• Keywords (english): lignocellulosic biomass; pretreatment methods; limitations; biogas
• Language: croatian
• URN:NBN: urn:nbn:hr:159:089718
• Study programme: Title: Biotechnology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka biotehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka biotehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-04-15 09:24:14