TY - JOUR
T1 - Food waste to biochars through pyrolysis
T2 - A review
AU - Elkhalifa, Samar
AU - Al-Ansari, Tareq
AU - Mackey, Hamish R.
AU - McKay, Gordon
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/5
Y1 - 2019/5
N2 - Waste generated from anthropogenic activities contributes toward stresses on our natural systems through impacts associated with both production and disposal. Sustainable waste management necessitates that industries shift from the current linear model to a circular based economy, utilizing wastes as raw materials for the production of new products, eg. fuels and chemicals. Biomass and associated waste materials can be converted into value-added products using thermochemical processes. The pyrolysis process is a convenient thermochemical method, whereby biomass is efficiently converted into biofuels, biochars and BBQ briquettes; and further processing yields additional value added products, such as activated carbons, carbon black and printing ink. This paper reviews current development work and evaluates potential opportunities for food waste pyrolysis focusing on the conversion of food waste to biochar products. Overall, it was found that the constituents of the food waste together with the process conditions play a major role in the yield and composition of the produced chars. Moreover, more research work needs to be conducted on food waste to biochar and on mixed food blends in particular.
AB - Waste generated from anthropogenic activities contributes toward stresses on our natural systems through impacts associated with both production and disposal. Sustainable waste management necessitates that industries shift from the current linear model to a circular based economy, utilizing wastes as raw materials for the production of new products, eg. fuels and chemicals. Biomass and associated waste materials can be converted into value-added products using thermochemical processes. The pyrolysis process is a convenient thermochemical method, whereby biomass is efficiently converted into biofuels, biochars and BBQ briquettes; and further processing yields additional value added products, such as activated carbons, carbon black and printing ink. This paper reviews current development work and evaluates potential opportunities for food waste pyrolysis focusing on the conversion of food waste to biochar products. Overall, it was found that the constituents of the food waste together with the process conditions play a major role in the yield and composition of the produced chars. Moreover, more research work needs to be conducted on food waste to biochar and on mixed food blends in particular.
KW - Biochar
KW - Environmental impacts
KW - Food waste
KW - Pyrolysis processes
KW - Value added products from biomass wastes
UR - https://www.scopus.com/pages/publications/85061531753
U2 - 10.1016/j.resconrec.2019.01.024
DO - 10.1016/j.resconrec.2019.01.024
M3 - Review article
AN - SCOPUS:85061531753
SN - 0921-3449
VL - 144
SP - 310
EP - 320
JO - Resources, Conservation and Recycling
JF - Resources, Conservation and Recycling
ER -