Screening of the dominant Chlorella pyrenoidosa for biofilm attached culture and feed production while treating swine wastewater
Abstract
This research 12 microalgal species were screened for biofilm attached culture in the treatment of anaerobically digested swine wastewater (ADSW). The influence of ADSW on biomass productivity and removal efficiencies were evaluated using biofilm attached culture with the selected Chlorella pyrenoidosa. The variation of nutritional components from algal cells were further analysed to evaluate the potential applications of C. pyrenoidosa. The results showed that C. pyrenoidosa had the highest tolerance to ADSW, and the highest removal efficiencies for wastewater pollutants were reached when cultured in 5 times diluted ADSW. These test conditions resulted in an algal cell biomass composed of 57.30% proteins, 14.87% extracellular polysaccharide, 3.08% crude fibre, 5.57% crude ash, 2.85% moisture. Amino acids in proteins contained 21.73% essential amino acids and the EAA/NEAA value was 0.64. The essential amino acid score indicates that the selected C. pyrenoidosa could be a good protein source for feed addition.
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Microalgae biomass recovery efficiency is one of the most significant challenges faced by microalgae-based wastewater treatment due to microalgae's small size, negatively charged surface, and similar density to water.
“However, microalgae biomass recovery efficiency is one of the most significant challenges faced by microalgae-based WWT due to its inherent characteristics, such as its small size, negatively charged surface, and similar density to water [167,168].”
From Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects (2023) · cites this paper as [168]
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Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects
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“microalgae biomass recovery efficiency is one of the most significant challenges faced by microalgae-based WWT due to its inherent characteristics, such as its small size, negatively charged surface, and similar density to water [167,168].”
BackgroundThe Application of Catalytic Processes on the Production of Algae-Based Biofuels: A Review
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- Authors
- Cheng, P., Chu, R., Zhang, X., Song, L., Chen, D., Zhou, C., Yan, X., Cheng, J. J., & Ruan, R.
- Affiliations
- Ningbo University (CN)
- Chinese Academy of Sciences (CN)
- University of Minnesota (US)
- North Carolina State University (US)
- Corresponding author
- Ruan, Roger
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2020-12
- Volume
- 318
- Pages
- 124054
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W3082798391
- Cited by
- 76
- References
- 51
- Citations by year
- 2026: 9 · 2025: 10 · 2024: 18 · 2023: 13 · 2022: 18 · 2021: 6 · 2020: 2
- FWCI
- 1.93
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Institute of Hydrobiology, CAS Institutional Repository (submittedVersion)
- Funders
- Chinese Academy of Sciences (KF2019NO3)
- Natural Science Foundation of Ningbo (431901822)
- Natural Science Foundation of Ningbo Municipality
- China Postdoctoral Science Foundation (2017T100583)
- University of Minnesota
- Natural Science Foundation of Zhejiang Province (LY20D060003)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Environmental Science › Waste Management and Disposal › Wastewater Treatment and Reuse
- Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
- Keywords
- Chlorella pyrenoidosa, algal biomass productivity, pollutant removal efficiency, essential amino acids, wastewater treatment
- MeSH terms
- Animals, Chlorella, Lipids, Swine, Biofilms, Biomass, Microalgae, Wastewater
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