Coagulation-membrane filtration of Chlorella vulgaris

Duu Jong Lee, Guan Yu Liao, Yin Ru Chang, Jo-Shu Chang

Research output: Contribution to journalArticle

30 Citations (Scopus)

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 languageEnglish
Pages (from-to)184-189
Number of pages6
JournalBioresource Technology
Volume108
DOIs
Publication statusPublished - 2012 Mar 1

Fingerprint

Coagulation
coagulation
Polytetrafluoroethylene
membrane
Membranes
Polytetrafluoroethylenes
chloride
Turbidity
Carbon Monoxide
Lipids
Differential scanning calorimetry
Suspensions
calorimetry
Fluxes
turbidity
Water
lipid
aluminum oxychloride
water
test

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Lee, Duu Jong ; Liao, Guan Yu ; Chang, Yin Ru ; Chang, Jo-Shu. / Coagulation-membrane filtration of Chlorella vulgaris. In: Bioresource Technology. 2012 ; Vol. 108. pp. 184-189.
@article{ff84fb7259034228974bc0fe92470510,
title = "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 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.",
author = "Lee, {Duu Jong} and Liao, {Guan Yu} and Chang, {Yin Ru} and Jo-Shu Chang",
year = "2012",
month = "3",
day = "1",
doi = "10.1016/j.biortech.2011.12.098",
language = "English",
volume = "108",
pages = "184--189",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier Limited",

}

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 journalArticle

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.

UR - http://www.scopus.com/inward/record.url?scp=84857234586&partnerID=8YFLogxK

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 -