Naslov
Biochar - negative emission system

Autori
Đurđević, Boris ; Jug, Irena ; Jug, Danijel ; Brozović, Bojana ; Vukadinović, Vesna ; Kanižai Šarić, Gabriella

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

Izvornik
Book of Abstracts 5th PannEx Workshop, 3-5 June 2019, Novi Sad, Serbia / Jug, Danijel ; Güttler, Ivan - Novi Sad : Fakultet agrobiotehničkih znanosti Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2019, 38-38

ISBN
978-953-7871-85-7

Skup
5th PannEx Workshop: Building PannEx Task Teams to address environmental needs in the Pannonian basin

Mjesto i datum
Novi Sad, Srbija, 03.06.2019. - 05.06.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
biochar ; CO2 ; negative emission

Sažetak
The underlying idea of mitigating climate change with biochar is based on a negative process, because in the process of pyrolysis of organic matter, more CO2 is sequestered (negative emission) compering to burning in oxygen rich environment (zero emission). There are currently many different processes of energy production from renewable sources (biomass) in the world. But, three most mentioned mitigation scenarios that include carbon dioxide removal are conventional biomass energy production system, carbon capture and storage and biochar production system. The first conventional biomass energy production system is based on the fact that plant with growth captures CO2 by the natural process of photosynthesis and that the incineration or decomposition of biomass remains emission to zero. Currently there is a lot of thinking about abandoning such technology. Because with that kind of approach we could question ourselves, what to produce food or energy. Also, removal of the complete organic matter from soil surface has devastating impact on soil fertility and health. Another way is to produce energy from biomass with carbon capture and storage. The process is based on the use of biomass for energy production and the capture and storage of CO2 in tanks (for example below Earth's surface). Such system has a negative CO2 emission, but there is a still problem with biomass sources (forests, crop residues). It is also questionable its cost-effectiveness (expensive process) and functionality (possibility of re-leaking CO2 from underground cavities or tanks). The third system is the production of a biochar as an excellent soil amendment or a combined system of production biochar and energy. Such system would produce the least energy by comparing to the above- mentioned two systems, but the only one that could, with the energy production, positively influence on soil fertility and sequestration of CO2.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA