Water reuse for sustainable microalgae cultivation: current knowledge and future directions
Abstract
Microalgae hold great promise as environmentally sustainable sources of food, animal feed, and fuel. However, large amounts of water are used during microalgae cultivation and this negatively impacts economic viability and environmental sustainability. Reusing cultivation water can reduce the direct impacts of water usage and also reduce nutrient requirements and algal wastewater treatment. However, studies have shown that algae growth in reused water can be compromised, unaffected, or sometimes enhanced compared to controls. This review examines recent studies on water reuse to qualitatively understand these varied effects. Growth inhibitors and stimulators in reused water and their underlying mechanisms are discussed, as well as recent pre-treatment technologies and factors affecting the quality of reused water, such as microalgae taxa, culture conditions, and harvesting methods, are considered. A scheme is proposed for water reuse and harvesting methods based on the desired algal end products. Finally, taking these findings together, here we provide recommendations for further research directions as well as new insights into designing and integrating a cultivation strategy with a harvesting platform to reuse water for more efficient microalgae cultivation.
- Authors:
-
- Duke Univ. Marine Laboratory, Beaufort, NC (United States); Chinese Academy of Sciences, Wuhan (China). Inst. of Hydrobiology. Center for Microalgal Biotechnology and Biofuels; Chinese Academy of Sciences, Wuhan (China). Inst. of Hydrobiology. Key Lab. for Algal Biology; Univ. of Alabama, Birmingham, AL (United States)
- Duke Univ. Marine Laboratory, Beaufort, NC (United States)
- Chinese Academy of Sciences, Wuhan (China). Inst. of Hydrobiology. Center for Microalgal Biotechnology and Biofuels; Chinese Academy of Sciences, Wuhan (China). Inst. of Hydrobiology. Key Lab. for Algal Biology; University of Chinese Academy of Sciences, Beijing (China)
- Duke Univ. Marine Laboratory, Beaufort, NC (United States); Chinese Academy of Sciences, Wuhan (China). Inst. of Hydrobiology. Center for Microalgal Biotechnology and Biofuels
- Chinese Academy of Sciences, Wuhan (China). Inst. of Hydrobiology. Center for Microalgal Biotechnology and Biofuels; Chinese Academy of Sciences, Wuhan (China). Inst. of Hydrobiology. Key Lab. for Algal Biology
- Duke Univ. Marine Laboratory, Beaufort, NC (United States); Duke Univ., Durham, NC (United States)
- Chinese Academy of Sciences, Wuhan (China). Inst. of Hydrobiology. Center for Microalgal Biotechnology and Biofuels; Chinese Academy of Sciences, Wuhan (China). Inst. of Hydrobiology. Key Lab. for Algal Biology; SDIC Biotech Investment Co., LTD., Beijing (China); Beijing Key Lab. of Algae Biomass, Beijing (China)
- Publication Date:
- Research Org.:
- Duke Univ., Durham, NC (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Natural Science Foundation of China (NSFC); China Postdoctoral Science Foundation; Chinese Foreign Experts Bureau; US National Science Foundation Graduate Research Fellowship
- OSTI Identifier:
- 1848483
- Alternate Identifier(s):
- OSTI ID: 1633114
- Grant/Contract Number:
- EE0007091; 31672625; 21603263; 2016M602391; 32OCPC2017; 164486820174200002
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Resources, Conservation and Recycling
- Additional Journal Information:
- Journal Volume: 161; Journal Issue: C; Journal ID: ISSN 0921-3449
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 54 ENVIRONMENTAL SCIENCES; Engineering; Environmental Sciences & Ecology; Algae; Bioenergy; Cultivation; Dissolved organic matter; Harvesting; Water reuse
Citation Formats
Lu, Zhiying, Loftus, Sarah, Sha, Jun, Wang, Wenxuan, Park, Min S., Zhang, Xuezhi, Johnson, Zackary I., and Hu, Qiang. Water reuse for sustainable microalgae cultivation: current knowledge and future directions. United States: N. p., 2020.
Web. doi:10.1016/j.resconrec.2020.104975.
Lu, Zhiying, Loftus, Sarah, Sha, Jun, Wang, Wenxuan, Park, Min S., Zhang, Xuezhi, Johnson, Zackary I., & Hu, Qiang. Water reuse for sustainable microalgae cultivation: current knowledge and future directions. United States. https://doi.org/10.1016/j.resconrec.2020.104975
Lu, Zhiying, Loftus, Sarah, Sha, Jun, Wang, Wenxuan, Park, Min S., Zhang, Xuezhi, Johnson, Zackary I., and Hu, Qiang. Thu .
"Water reuse for sustainable microalgae cultivation: current knowledge and future directions". United States. https://doi.org/10.1016/j.resconrec.2020.104975. https://www.osti.gov/servlets/purl/1848483.
@article{osti_1848483,
title = {Water reuse for sustainable microalgae cultivation: current knowledge and future directions},
author = {Lu, Zhiying and Loftus, Sarah and Sha, Jun and Wang, Wenxuan and Park, Min S. and Zhang, Xuezhi and Johnson, Zackary I. and Hu, Qiang},
abstractNote = {Microalgae hold great promise as environmentally sustainable sources of food, animal feed, and fuel. However, large amounts of water are used during microalgae cultivation and this negatively impacts economic viability and environmental sustainability. Reusing cultivation water can reduce the direct impacts of water usage and also reduce nutrient requirements and algal wastewater treatment. However, studies have shown that algae growth in reused water can be compromised, unaffected, or sometimes enhanced compared to controls. This review examines recent studies on water reuse to qualitatively understand these varied effects. Growth inhibitors and stimulators in reused water and their underlying mechanisms are discussed, as well as recent pre-treatment technologies and factors affecting the quality of reused water, such as microalgae taxa, culture conditions, and harvesting methods, are considered. A scheme is proposed for water reuse and harvesting methods based on the desired algal end products. Finally, taking these findings together, here we provide recommendations for further research directions as well as new insights into designing and integrating a cultivation strategy with a harvesting platform to reuse water for more efficient microalgae cultivation.},
doi = {10.1016/j.resconrec.2020.104975},
journal = {Resources, Conservation and Recycling},
number = C,
volume = 161,
place = {United States},
year = {Thu Jun 11 00:00:00 EDT 2020},
month = {Thu Jun 11 00:00:00 EDT 2020}
}
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