Naslov
Biodiesel production and composting – sustainable solutions for food waste management

Autori
Šalić, Anita ; Gojun, Martin ; Sokač, Tea ; Zelić, Bruno

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts of 1st international conference FOOD & CLIMATE CHANGES / Šamec, Dunja ; Šarkanj, Bojan ; Sviličić Petrić, Ines - Koprivnica : Sveučilište Sjever, 2021, 26-26

ISBN
978-953-7986-31-5

Skup
1st international conference Food and Climate Change

Mjesto i datum
Koprivnica, Hrvatska, 15.10.2021. - 16.10.2021

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
food waste ; recycling ; composting ; biodiesel

Sažetak
Food makes the majority of municipal solid waste that ends up in landfills, where large amounts of methane are produced. Methane that is released into the atmosphere is harmful to the environment and roughly 30 times more potent as a heat- trapping gas than carbon dioxide. Food waste recycling can reduce emission of methane and other greenhouse gases and help combat climate change. Food waste can be used as raw material in production of animal feed, compost or energy (biodiesel and bioethanol). Composting technologies are an efficient way of managing organic waste as they reduce the volume and weight of the waste by about 50%. Additionally, the product obtained, compost, can be considered as a sustainable. Composting without and with bioaugmentation was investigated in one of our previous studies. Bioaugmentation improved the composting process - conversion of the substrate was achieved earlier compared to the experiment without bioaugmentation. In order to obtain an even more useful product, waste cooking oil was used as a potential substrate for biodiesel production. Following the principles of green production, an enzymatic transesterification process was carried out in a microreactor. Microreactors offer significant advantages over conventional meso- and macroscale reactors, such as a large surface area to volume ratio and intensification of mass and energy transfer combined with short residence times. By integrating biodiesel production and glycerol removal on a microscale, a step forward has been taken towards development of portable factories for biodiesel production.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Interdisciplinarne tehničke znanosti, Biotehnologija

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