Postupak ko-/digestije: primeri, postavke i eksperimentalno izvođenje / Co-/Digestion Procedure: Examples, Settings and Experimental Performance

Energija, ekonomija, ekologija, 3, XXVI (2024) (стр 1-10)
 

АУТОР(И) / AUTHOR(S): Nikola Rakić, Vanja Šušteršič, Natalija Aleksić, Nebojša Jurišević, Dušan Gordić

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DOI: 10.46793/EEE24-3.01R

САЖЕТАК / ABSTRACT:

Savremene tehnologije za tretiranje organskog otpada ubrajaju postupak ko-/digestije kao jedan od osnovnih. Ovaj rad daje pregled izvedenih ispitivanja na međunarodnom nivou, teorijske osnove i ključne parametre procesa ko-/digestije zaključno sa postavljenim i obavljenim eksperimentom. Ko-/digestija je predstavljena kao proces kojim se gotovo jednoznačno tretira kanalizacioni mulj ili životinjski stajnjak kao primarna podloga, i dodatni biorazgradivi materijal koji služi kao ko-supstrat. Zabeležen je širok opseg prinosa biogasa, od 118 ml CH4/g VS do 1040 ml CH4/g VS, za različite odnose inokulum/supstrat i supstrat/ko-supstrat. Navedeni su elementi standardnog protokola i osnovne faze anaerobne digestije. Teorijske postavke su obuhvatile parametre, inhibitorne supstance i predtretmane. Eksperimentalna procedura je sprovedena bazičnom opremom i standardnim metodama. Primarni kanalizacioni mulj i otpad od hrane su ispitivani u 4 različita odnosa (1/0; 3/1; 1/1; 1/3). Primećen je porast proizvodnje sa povećanjem udela ostataka hrane, dok je najstabilniji rad pokazala proporcija 1/1. Kod ko-digestija potvrđeni su sinergijski efekti od 7,1%, 12,8% i 17%, respektivno. Dokazano je da dodatak biorazgradivog otpada pozitivno utiče na prinos biogasa.

КЉУЧНЕ РЕЧИ / KEYWORDS:

 ko-/digestija, kanalizacioni mulj, otpad od hrane, biogas, sinergija

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