Mija Sežun (Author), Ilja Gasan Osojnik Črnivec (Author), Romana Marinšek-Logar (Author)

Abstract

V Sloveniji postaja problematika komunalnih odpadkov vedno bolj aktualna, saj je ravnanje z odpadki eno najslabše rešenih nalog v okviru varstva okolja. Odlaganje na deponije je trenutno najbolj običajna praksa ravnanja s komunalnimi odpadki. Posledica neprimernega ravnanja z odpadki je tudi prekomerno sproščanje metana iz odlagališč, zato bo potrebno poiskati primernejše rešitve. V tej raziskavi smo ugotavljali, kakšna je potencialna produkcija metana iz organskih komunalnih odpadkov glede na njihovo različno granulacijo (delci različnih velikosti:>100 mm, 40-100 mm, 10-40 mm in <10 mm). Vzorcem smo predhodno določili delež organske snovi (OS), suho snov (SS), skupni organski ogljik (TOC), dušik po Kjeldahlu (TKN, NH=4in C/N razmerje. Pred inkubacijo in po njej smo določili kemijsko potrebo po kisiku (KPK). Iz podatkov, pridobljenih v testu biokemijskega metanskega potenciala (BMP), smo izračunali naslednje parametre: kumulativno produkcijo metana, metanski potencial in izplen metana. Izkazalo se je, da velikost delcev pomebno vpliva na metanski potencial organskih komunalnih odpadkov in da bo le-te pred presnovo v bioplin potrebno zdrobiti.

Keywords

organski komunalni odpadki;varstvo okolja;bioplin;biokemijski metanski potencial;Slovenija;

Data

Language: Slovenian
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL BF - Biotechnical Faculty
Publisher: Biotehniška fakulteta
UDC: 502
COBISS: 2540168 Link will open in a new window
ISSN: 1581-9175
Parent publication: Acta agriculturae Slovenica
Views: 1226
Downloads: 252
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Other data

Secondary language: English
Secondary title: ǂThe ǂinfluence of municipal organic waste particle size on biogas production
Secondary abstract: In Slovenia we are facing with municipal waste problems, because their treatment is one of the worst solved goals in environmental protection. Landfilling is the most frequently used practise at the moment, which causes releasing of methane gas into the atmosphere. That's why better solutions are needed. In the present study we determined the potential methane production from organic municipal wastes of different particle size (particle size: >100 mm, 40-100 mm, 10-40 mm and <10 mm). We determined volatile solids (VS), total solids (TS), total organic carbon (TOC), kjeldahl nitrogen (TKN), NH+4 and C/N ratio of the samples. Before and after incubation we determined chemical oxygen demend (COD). Following the biomethane potential test (BMP) we calculated parameters like: methane potential, methane yield and max. velocity of methane production. The results show that the particle size has the strongest influence on metan potential of organic waste and the grinding pretreatment is needed before biogas production process.
Secondary keywords: municipal organic waste;environmental protection;biogas;methane;biochemical methane potential;Slovenia;
URN: URN:NBN:SI
Type (COBISS): Not categorized
Pages: str. 47-53
Volume: ǂLetn. ǂ94
Issue: ǂšt. ǂ1
Chronology: 2009
Keywords (UDC): mathematics;natural sciences;naravoslovne vede;matematika;the environment and its protection;varstvo okolja;
ID: 1445628