Proizvodnja bioplina iz invazivne kulture Arundo donax L. ovisno o roku žetve

master's thesis

• Title (english): Effect of harvest time on biogas production from invasive crop Arundo donax L.
• Author: Renata Šustar
• Mentor: Vanja Jurišić (mentor)
• Committee member: Vanja Jurišić (predsjednik povjerenstva)
• Committee member: Nikola Bilandžija (član povjerenstva)
• Committee member: Ana Matin (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Sustainable Technologies and Renewable Energy Sources); Zagreb
• Defense date and country: 2021-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Proizvodnja bioplina jedna je od ključnih tehnologija za pretvorbu različitih vrsta supstrata u obnovljivu energiju. U proizvodnji bioplina često se koriste poljoprivredne kulture od kojih je najzastupljenija kukuruzna silaža. Iako je njezino korištenje tehnološki i energetski isplativ proces, pokazala je i određene nedostatke kao što su visoka početna ulaganja, konkurencija prehrambenoj industriji te negativan utjecaj na okoliš. Arundo donax L. je višegodišnja invazivna vrsta u Hrvatskoj i u svijetu, a posljednjih se godina razmatra njezin potencijal za proizvodnju bioplina. Osnovne prednosti su visok prinos biomase po hektaru, niska početna ulaganja te sigurnost za okoliš budući da ne zahtijeva dodatnu prihranu i obradu tla. Cilj ovog rada bio je utvrditi karakteristike biomase Arundo donax L. i količine dobivenog bioplina s obzirom na različito vrijeme žetve. Uzorci su prikupljeni u studenom 2020. i ožujku 2021. nakon čega je proveden proces anaerobne digestije. Utvrđeno je kako vrijeme žetve utječe na komponente biomase i na konačan prinos bioplina te kako je Arundo donax L. pokazao uspješne performanse. Iako su potrebna daljnja istraživanja i poboljšanja tehnologija predtretmana, A. donax L. povoljna je sirovina za proizvodnju bioplina, posebice zbog navedenih prednosti u odnosu na kukuruznu silažu.

Abstract (english)

Biogas production is one of the key technologies by which different types of substrates can be transform into renewable energy products. Agricultural crops are often used in biogas production, and the most common is corn silage. Although its usage is the most efficient and technologically effective process, corn shows several negative aspects such as high environmental impact, competition with food industry and high initial investments. Arundo donax L. is an invasive perennial plant in Croatia and all over the world, and in recent years its potential for biogas production has been considered. High biomass production per ha, low investments and environmental safety as it does not require additional fertilization and tillage are the main advantages of this crop. The primary goal of this research is to determine the biomass characteristics of Arundo donax L. and the effect of harvest time on biomethane and biogas production. Samples were collected in November 2020. and March 2021. and tested in lab reactor for anaerobic digestion. It was found that harvest time affected the composition of biomass and ultimate biogas production. A. donax L. showed good performances, although more research and improvements in pretreatment technologies are needed. A. donax L. is a suitable crop for biogas production, especially because of all the advantages in comparison with corn silage.

• Keywords: bioplin; Arundo donax L.; vrijeme žetve
• Keywords (english): biogas production; Arundo donax L.; harvest time
• Language: croatian
• URN:NBN: urn:nbn:hr:204:646950
• Study programme: Title: Organic Agriculture with Agrotourism; Study programme type: university; Study level: graduate; Academic / professional title: magistar / magistra inženjer/inženjerka ekološke poljoprivrede i agroturizma (magistar / magistra inženjer/inženjerka ekološke poljoprivrede i agroturizma)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to authenticated users
• Created on: 2022-01-26 07:15:52