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Chemistry in Industry : Journal of Chemists and Chemical Engineers of Croatia, Vol. 68 No. 9-10 (special issue), 2019.

Original scientific paper

https://doi.org/10.15255/KUI.2019.029

Composting of Agroindustrial Waste, Biowaste and Biodegradable Municipal Solid Waste in Adiabatic Reactor

Dajana Kučić Grgić orcid id orcid.org/0000-0001-8427-6482 ; Faculty of Chemical Engineering and Technology University of Zagreb, Marulićev trg 19 10 000 Zagreb, Croatia
Felicita Briški ; Faculty of Chemical Engineering and Technology University of Zagreb, Marulićev trg 19 10 000 Zagreb, Croatia
Vesna Ocelić Bulatović orcid id orcid.org/0000-0002-1604-090X ; University of Zagreb, Faculty of Metallurgy, Aleja narodnih heroja 3, 44 000 Sisak, Croatia
Marija Vuković Domanovac orcid id orcid.org/0000-0001-5818-7347 ; Faculty of Chemical Engineering and Technology University of Zagreb, Marulićev trg 19 10 000 Zagreb, Croatia
Tomislav Domanovac ; IPZ Uniprojekt Terra, Ulica Ivana Banjavčića 22, 10000 Zagreb, Croatia
Monika Šabić Runjavec orcid id orcid.org/0000-0002-5040-6995 ; Faculty of Chemical Engineering and Technology University of Zagreb, Marulićev trg 19 10 000 Zagreb, Croatia
Martina Miloloža orcid id orcid.org/0000-0003-3719-8359 ; Faculty of Chemical Engineering and Technology University of Zagreb, Marulićev trg 19 10 000 Zagreb, Croatia
Matija Cvetnić orcid id orcid.org/0000-0002-0168-8092 ; Faculty of Chemical Engineering and Technology University of Zagreb, Marulićev trg 19 10 000 Zagreb, Croatia

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Abstract

The aim of this work was biological treatment of agroindustrial waste (P1), biowaste (P2) and biodegradable municipal solid waste (P3) by the composting process in adiabatic reactor during 21 days. In experiments P1, P2, and P3, a maximum temperature of 52, 55, and 57 °C was reached, and the thermophilic phase lasted 8, 5, and 6 days. The cumulative evolved CO2 and NH3 was 122, 407, and 389 g kgVM0–1 and 89, 148, and 559 mg kgVM0–1, respectively. The pH value at the beginning of the process was in the neutral and at the end in the slightly alkaline domain. The substrate humidity increased by about 5 %, while the C/N ratio decreased due to a decrease in the organic C content and an increase in N content. Consequently, a conversion of 48 %, 71 %, and 56 %, respectively, was achieved in experiments P1, P2, and P3.


This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords

agroindustrial waste; biowaste; biodegradable municipal solid waste; composting process; adiabatic reactor

Hrčak ID:

225278

URI

https://hrcak.srce.hr/225278

Publication date:

7.10.2019.

Article data in other languages: croatian

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