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 200mgL -1 as Al 2O 3. The membrane filtration flux at 1bar 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 10mgL -1 as Al 2O 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 10mgL -1 PACl as Al 2O 3, followed by PTFE membrane filtration at 1bar, is an effective process for harvesting C. vulgaris from algal froth.
| Original language | English |
|---|---|
| Pages (from-to) | 184-189 |
| Number of pages | 6 |
| Journal | Bioresource Technology |
| Volume | 108 |
| DOIs | |
| Publication status | Published - 2012 Mar 1 |
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All Science Journal Classification (ASJC) codes
- Bioengineering
- Environmental Engineering
- Waste Management and Disposal
Cite this
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Coagulation-membrane filtration of Chlorella vulgaris. / Lee, Duu Jong; Liao, Guan Yu; Chang, Yin Ru; Chang, Jo-Shu.
In: Bioresource Technology, Vol. 108, 01.03.2012, p. 184-189.Research output: Contribution to journal › Article
TY - JOUR
T1 - Coagulation-membrane filtration of Chlorella vulgaris
AU - Lee, Duu Jong
AU - Liao, Guan Yu
AU - Chang, Yin Ru
AU - Chang, Jo-Shu
PY - 2012/3/1
Y1 - 2012/3/1
N2 - 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 200mgL -1 as Al 2O 3. The membrane filtration flux at 1bar 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 10mgL -1 as Al 2O 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 10mgL -1 PACl as Al 2O 3, followed by PTFE membrane filtration at 1bar, is an effective process for harvesting C. vulgaris from algal froth.
AB - 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 200mgL -1 as Al 2O 3. The membrane filtration flux at 1bar 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 10mgL -1 as Al 2O 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 10mgL -1 PACl as Al 2O 3, followed by PTFE membrane filtration at 1bar, is an effective process for harvesting C. vulgaris from algal froth.
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UR - http://www.scopus.com/inward/citedby.url?scp=84857234586&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2011.12.098
DO - 10.1016/j.biortech.2011.12.098
M3 - Article
VL - 108
SP - 184
EP - 189
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -