Cited by 83Algal biology and biofuel productionEnvironmental Impact and SustainabilityBioenergy crop production and management

Various potential techniques to reduce the water footprint of microalgal biomass production for biofuel—a review

Pugazhendhi, Arivalagan, Nagappan, Senthil, Bhosale, Rahul R., Tsai, Pei-Chien, Natarajan, Shakunthala, Devendran, Saravanan, Al-Haj, Lamya, Ponnusamy, Vinoth Kumar +1 more·2020·Science of The Total Environment

Abstract

Due to their rapid growth rates, high lipid productivity, and ability to synthesize value-added products, microalgae are considered as the potential biofuel feedstocks. However, among the several bottlenecks that are hindering the commercialization of microalgal biofuel synthesis, the issue of high water consumption is the least explored. This analysis, therefore, examines the factors that decide water use for the production of microalgae biofuel. Microalgae biodiesel water footprint varies from 3.5 to 3726 kg of water per kg of biodiesel. The study further investigates the cause for large variability in the estimation of the water footprint for microalgae fuel. Various strategies, including the reuse of harvested water, the use of high density cultivation that could be adopted for low water consumption in microalgal biofuel production are discussed. Specifically, the review identified a reciprocal relationship between biomass productivity and water footprint. On the basis of which the review emphasizes the significance of high density cultivation, which can be inexpensive and feasible relative to other water-saving techniques. With the setback of water scarcity due to the rapid industrialization in developing countries, the implementation of the cultivation system with a focus on minimizing the water consumption is inevitable for a successful large scale microalgal biofuel production.

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Crossref · 10.1016/j.scitotenv.2020.142218

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  • When the growth media is recycled, the water footprint of microalgae can be reduced by 90%.

    “For example, when the growth media is recycled, the water footprint of microalgae can be reduced by 90% (Pugazhendhi et al., 2020).”

    From Potential of microalgae as a sustainable feed ingredient for aquaculture (2021) · cites this paper as Pugazhendhi et al., 2020

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Authors
Pugazhendhi, A., Nagappan, S., Bhosale, R. R., Tsai, P.-C., Natarajan, S., Devendran, S., Al-Haj, L., Ponnusamy, V. K., & Kumar, G.
Affiliations
  • Ton Duc Thang University (VN)
  • Anna University, Chennai (IN)
  • Qatar University (QA)
  • Kaohsiung Medical University (TW)
  • University of Illinois Urbana-Champaign (US)
  • Yonsei University (KR)
Corresponding author
  • Ponnusamy, Vinoth Kumar
  • Kumar, Gopalakrishnan
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2020-12
Volume
749
Pages
142218
ISSN
0048-9697 (ISSN-L)
OpenAlex
W3086772438
Cited by
83
References
116
Citations by year
2026: 9 · 2025: 17 · 2024: 13 · 2023: 11 · 2022: 20 · 2021: 13
FWCI
0.50
Type
journal article
Language
en
Open access
closed
Locations
  • The Science of The Total Environment (publishedVersion)
  • PubMed (publishedVersion)
  • Qatar University QSpace (Qatar University) (submittedVersion)
Funders
  • Ministry of Education, India
  • Ministry of Science and Technology, Taiwan (MOST107-2113-M-037-007-MY2)
  • Kaohsiung Medical University (NSYSU-KMU 107-I004)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Environmental Science › Environmental Engineering › Environmental Impact and Sustainability
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Bioenergy crop production and management
Keywords
microalgae, water footprint, microalgae biodiesel, biofuel feedstock, water reuse, high-density cultivation, water scarcity, biomass productivity, water conservation
MeSH terms
Water, Biomass, Biofuels, Microalgae

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