An automated, modular system for organic waste utilization using heterotrophic alga Galdieria sulphuraria: Design considerations and sustainability
Research output: Journal contributions › Journal articles › Research › peer-review
Standard
In: Bioresource Technology, Vol. 348, 126800, 01.03.2022.
Research output: Journal contributions › Journal articles › Research › peer-review
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - JOUR
T1 - An automated, modular system for organic waste utilization using heterotrophic alga Galdieria sulphuraria
T2 - Design considerations and sustainability
AU - Julius Pahmeyer, Maximilian
AU - Anusha Siddiqui, Shahida
AU - Pleissner, Daniel
AU - Gołaszewski, Janusz
AU - Heinz, Volker
AU - Smetana, Sergiy
N1 - This research is funded by the German Federal Ministry of Education and Research (BMBF), in the frame of FACCE-SURPLUS/FACCE-JPI project UpWaste, grant number 031B0934A and 031B0934B and by the National (Polish) Centre for Research and Development (NCBiR) (Project FACCE SURPLUS/III/UpWaste/02/2020). Copyright © 2022 The Author(s). Published by Elsevier Ltd.. All rights reserved.
PY - 2022/3/1
Y1 - 2022/3/1
N2 - Large amounts of food are wasted and valuable contents are not utilized completely. Methods to process such wastes into biomass of defined composition automatically and in decentralized locations are lacking. Thus, this study presents a modular design for residue utilization and continuous production of the heterotrophic alga Galdieria sulphuraria. A life cycle and economic assessment are carried out on the hypothetical design to define whether the proposed system can be ecologically and economically viable. Producing one kg of dried biomass would cost 4.38 € and be associated with 3.8 kg CO2 eq emitted, 69.9 MJ of non-renewable energy use, and 0.09 m2 of land occupation. Sustainability is comparable to conventional protein sources, with further improvement foreseen through avoidance of drying. These results demonstrate how circular bioeconomy potentials of residues could be realized using heterotrophic G. sulphuraria. It highlights key issues of developing an environmentally and economically sustainable concept.
AB - Large amounts of food are wasted and valuable contents are not utilized completely. Methods to process such wastes into biomass of defined composition automatically and in decentralized locations are lacking. Thus, this study presents a modular design for residue utilization and continuous production of the heterotrophic alga Galdieria sulphuraria. A life cycle and economic assessment are carried out on the hypothetical design to define whether the proposed system can be ecologically and economically viable. Producing one kg of dried biomass would cost 4.38 € and be associated with 3.8 kg CO2 eq emitted, 69.9 MJ of non-renewable energy use, and 0.09 m2 of land occupation. Sustainability is comparable to conventional protein sources, with further improvement foreseen through avoidance of drying. These results demonstrate how circular bioeconomy potentials of residues could be realized using heterotrophic G. sulphuraria. It highlights key issues of developing an environmentally and economically sustainable concept.
KW - Food waste
KW - Galdieria sulphuraria
KW - Microalgae
KW - Modular technology
KW - Waste processing
KW - Biology
UR - http://www.scopus.com/inward/record.url?scp=85124185687&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/9a1fb31a-6ef3-3f8a-9308-15b26b713504/
U2 - 10.1016/j.biortech.2022.126800
DO - 10.1016/j.biortech.2022.126800
M3 - Journal articles
C2 - 35121101
AN - SCOPUS:85124185687
VL - 348
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
M1 - 126800
ER -