Open AccessResearch on transforming food waste into valuable products
Author(s) -
Hao Guo,
Tong Lin,
Yinlong Guo,
Tianchu Shu,
Xu Li,
Binjie Bai,
Xiaoqin Nie
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/766/1/012061
Subject(s) - biorefinery , food waste , biofuel , biogas , anaerobic digestion , waste management , biodiesel , renewable energy , compost , fossil fuel , environmental science , environmental pollution , biochemical engineering , engineering , environmental protection , chemistry , biochemistry , electrical engineering , organic chemistry , methane , catalysis
Transforming food waste into valuable products could solve the double crises of both depletion of fossil fuels and environmental pollution. Literature and filed research were combined for identifying the transforming technologies. Material balance analysis was used for the calculation of outputs from these technologies. Composting, feeding, anaerobic digestion, bioethanol conversion, biodiesel conversion as well as the integration system-biorefinery were the common technologies applied around world. With the material balance analysis, the outputs of each technology were compost, insect-based feed, biogas, bioethanol and biodiesel respectively. The amount of productions is not at a high level, both less than 20%, however when substituting fossil energy or materials, these food waste-based products could achieve good benefits. On the other hand, with the diversified technology systems, how to choose the optimal of technology with a good balance on resource, energy and environment respects, is another problem to be solved.