Microalgae production in human urine: Fundamentals, opportunities, and perspectives

The biological treatment of source-separated human urine to produce biofuel, nutraceutical, and high-value chemicals is getting increasing attention. Especially, photoautotrophic microalgae can use human urine as media to achieve environmentally and economically viable large-scale cultivation. This...

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Main Authors: Yewen Tao, Zhipeng Liu, Junjian Zheng, Jieqin Zhou, Di He, Jinxing Ma
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-11-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2022.1067782/full
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author Yewen Tao
Zhipeng Liu
Junjian Zheng
Jieqin Zhou
Di He
Jinxing Ma
author_facet Yewen Tao
Zhipeng Liu
Junjian Zheng
Jieqin Zhou
Di He
Jinxing Ma
author_sort Yewen Tao
collection DOAJ
description The biological treatment of source-separated human urine to produce biofuel, nutraceutical, and high-value chemicals is getting increasing attention. Especially, photoautotrophic microalgae can use human urine as media to achieve environmentally and economically viable large-scale cultivation. This review presents a comprehensive overview of the up-to-date advancements in microalgae cultivation employing urine in photobioreactors (PBRs). The standard matrices describing algal growth and nutrient removal/recovery have been summarized to provide a platform for fair comparison among different studies. Specific consideration has been given to the critical operating factors to understand how the PBRs should be maintained to achieve high efficiencies. Finally, we discuss the perspectives that emphasize the impacts of co-existing bacteria, contamination by human metabolites, and genetic engineering on the practical microalgal biomass production in urine.
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spelling doaj.art-0b321c560ba4451797efe51ade66018b2022-12-22T04:39:14ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2022-11-011310.3389/fmicb.2022.10677821067782Microalgae production in human urine: Fundamentals, opportunities, and perspectivesYewen Tao0Zhipeng Liu1Junjian Zheng2Jieqin Zhou3Di He4Jinxing Ma5Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou, ChinaSchool of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, ChinaCollege of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, ChinaKey Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou, ChinaKey Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou, ChinaKey Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou, ChinaThe biological treatment of source-separated human urine to produce biofuel, nutraceutical, and high-value chemicals is getting increasing attention. Especially, photoautotrophic microalgae can use human urine as media to achieve environmentally and economically viable large-scale cultivation. This review presents a comprehensive overview of the up-to-date advancements in microalgae cultivation employing urine in photobioreactors (PBRs). The standard matrices describing algal growth and nutrient removal/recovery have been summarized to provide a platform for fair comparison among different studies. Specific consideration has been given to the critical operating factors to understand how the PBRs should be maintained to achieve high efficiencies. Finally, we discuss the perspectives that emphasize the impacts of co-existing bacteria, contamination by human metabolites, and genetic engineering on the practical microalgal biomass production in urine.https://www.frontiersin.org/articles/10.3389/fmicb.2022.1067782/fullmicroalgaeurinephotobioreactorbiomassammoniaresource recovery
spellingShingle Yewen Tao
Zhipeng Liu
Junjian Zheng
Jieqin Zhou
Di He
Jinxing Ma
Microalgae production in human urine: Fundamentals, opportunities, and perspectives
Frontiers in Microbiology
microalgae
urine
photobioreactor
biomass
ammonia
resource recovery
title Microalgae production in human urine: Fundamentals, opportunities, and perspectives
title_full Microalgae production in human urine: Fundamentals, opportunities, and perspectives
title_fullStr Microalgae production in human urine: Fundamentals, opportunities, and perspectives
title_full_unstemmed Microalgae production in human urine: Fundamentals, opportunities, and perspectives
title_short Microalgae production in human urine: Fundamentals, opportunities, and perspectives
title_sort microalgae production in human urine fundamentals opportunities and perspectives
topic microalgae
urine
photobioreactor
biomass
ammonia
resource recovery
url https://www.frontiersin.org/articles/10.3389/fmicb.2022.1067782/full
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