Coagulation-membrane filtration of Chlorella vulgaris
Abstract
Filtration-based separation of Chlorella vulgaris, a species with excellent potential for CO(2) capture and lipid production, was investigated using a surface-modified hydrophilic polytetrafluoroethylene (PTFE) membrane. Coagulation using polyaluminum chloride (PACl) attained maximum turbidity removal at 200 mg L(-1) as Al(2)O(3). The membrane filtration flux at 1 bar increased as the PACl dose increased, regardless of overdosing in the coagulation stage. The filtered cake at the end of filtration tests peaked in solid content at 10 mg L(-1) as Al(2)O(3), reaching 34% w/w, roughly two times that of the original suspension. Differential scanning calorimetry (DSC) tests demonstrate that the cake with minimum water-solid binding strength produced the driest filter cake. Coagulation using 10 mg L(-1) PACl as Al(2)O(3), followed by PTFE membrane filtration at 1 bar, is an effective process for harvesting C. vulgaris from algal froth.
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pH in microalgal cultures is relatively high.
“Chitosan is a very efficient flocculant but it works only at low pH, but pH in microalgal cultures is relatively high [47].”
From Key Targets for Improving Algal Biofuel Production (2021) · cites this paper as [47]
Chitosan is a very efficient flocculant.
“Chitosan is a very efficient flocculant but it works only at low pH, but pH in microalgal cultures is relatively high [47].”
From Key Targets for Improving Algal Biofuel Production (2021) · cites this paper as [47]
Chitosan works only at low pH.
“Chitosan is a very efficient flocculant but it works only at low pH, but pH in microalgal cultures is relatively high [47].”
From Key Targets for Improving Algal Biofuel Production (2021) · cites this paper as [47]
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- Authors
- Lee, D.-J., Liao, G.-Y., Chang, Y.-R., & Chang, J.-S.
- Affiliations
- National Taiwan University of Science and Technology (TW)
- National Taiwan University (TW)
- National Cheng Kung University Hospital (TW)
- Corresponding author
- Lee, Duu-Jong
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2012-03
- Volume
- 108
- Pages
- 184-189
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W1982663807
- Cited by
- 50
- References
- 29
- Citations by year
- 2025: 3 · 2023: 1 · 2022: 3 · 2021: 4 · 2020: 3 · 2019: 3 · 2018: 2 · 2017: 4 · 2016: 3 · 2015: 6 · 2014: 8 · 2013: 5 · 2012: 5
- FWCI
- 6.96
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Science Council
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Coagulation and Flocculation Studies
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Environmental Science › Water Science and Technology › Membrane Separation Technologies
- Keywords
- Chlorella vulgaris, coagulation, membrane filtration, polytetrafluoroethylene membrane, polyaluminum chloride, algal harvesting, filter cake, CO2 capture, microalgal lipid production
- MeSH terms
- Aluminum Hydroxide, Aluminum Oxide, Biotechnology, Calorimetry, Differential Scanning, Filtration, Fresh Water, Membranes, Artificial, Polytetrafluoroethylene, Spectrometry, Fluorescence, Taiwan, Chlorella vulgaris
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