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Lim, Hankwon
Sustainable Process Analysis, Design, and Engineering (SPADE)
Research Interests
  • Process analysis, Process design, Techno-economic analysis, Separation process, Reaction engineering, Computational fluid dynamics, Membrane reactor, H2 energy, Water electrolysis, Vanadium redox flow battery, Greenhouse gas reduction

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Techno-economic analysis of livestock urine and manure as a microalgal growth medium

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Title
Techno-economic analysis of livestock urine and manure as a microalgal growth medium
Author
Lee, Jae-CheolLee, BoreumKim, Hyun-WooJeon, Byong-HunLim, Hankwon
Issue Date
2021-11
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
WASTE MANAGEMENT, v.135, pp.276 - 286
Abstract
Microalgae have the potential to utilize the nutrients in livestock urine and manure (LUM) for the production of useful biomass, which can be used as a source of bioindustry. This study aims to evaluate the economic benefits of LUM feedstock that have not been clearly discussed before. Two types of photobioreactors were designed with a capacity of 200 m(3) d(-1). Using the experimental data, the economic feasibility of the suggested processes was evaluated via techno-economic analysis. Itemized cost estimation indicated that the submerged membrane photobioreactor has a lower unit production cost (5.4 $ to 5.1 $ kg(-1)) than the conventional photobioreactor system (14.6 $ to 13.8 $ kg(-1)). In addition, LUM-based growth is another good option for reducing the unit production cost of biomass. The revenues from lowering the cost of LUM treatment significantly contribute to enhancing the economic profitability, where the break-even prices were 1.18 $ m(-3) (photobioreactor) and 0.98 $ m(-3) (submerged membrane photobioreactor). Finally, this study provides several emerging suggestions to reduce microalgal biomass production costs.
URI
https://scholarworks.unist.ac.kr/handle/201301/54877
URL
https://www.sciencedirect.com/science/article/pii/S0956053X21004943?via%3Dihub
DOI
10.1016/j.wasman.2021.09.005
ISSN
0956-053X
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