Effect of O3 and O3/H2O2 on algae harvesting using chitosan

R. Pranowo; D. J. Lee; J. C. Liu; J. S. Chang

doi:10.2166/wst.2013.001

Effect of O₃ and O₃/H₂O₂ on algae harvesting using chitosan

R. Pranowo
, D. J. Lee
, J. C. Liu
, J. S. Chang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

11 Citations (Scopus)

Abstract

We examined the effects of pre-oxidation using ozone (O₃) and a combination of O₃ and hydrogen peroxide (O₃/H ₂O₂) on algae suspensions and their harvesting. Inactivation of algae cells, release of intracellular organic matter (IOM), mineralization of extracellular organic matter (EOM), and changes in molecular weight distribution of EOM were found after pre-oxidation. Enhanced separation efficiency of turbidity, dissolved organic carbon (DOC), protein, and polysaccharide using chitosan and polyaluminum chloride (PACl) was found after pre-oxidation, especially when algae cells were subject to O₃/H ₂O₂. Chitosan showed higher efficiency than PACl. Judging from the remarkable increase in floc size, it was proposed that released IOM formed complexes with cationic chitosan and resulted in enhanced dual flocculation and facilitated algae separation. © IWA Publishing 2013.

Original language	English
Pages (from-to)	1294-1301
Journal	Water Science and Technology
Volume	67
Issue number	6
DOIs	https://doi.org/10.2166/wst.2013.001
Publication status	Published - 2013
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Algae
Chitosan
Coagulation-flocculation
Extracellular organic matter
Harvesting
Polyaluminum chloride

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Cite this

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title = "Effect of O3 and O3/H2O2 on algae harvesting using chitosan",

abstract = "We examined the effects of pre-oxidation using ozone (O3) and a combination of O3 and hydrogen peroxide (O3/H 2O2) on algae suspensions and their harvesting. Inactivation of algae cells, release of intracellular organic matter (IOM), mineralization of extracellular organic matter (EOM), and changes in molecular weight distribution of EOM were found after pre-oxidation. Enhanced separation efficiency of turbidity, dissolved organic carbon (DOC), protein, and polysaccharide using chitosan and polyaluminum chloride (PACl) was found after pre-oxidation, especially when algae cells were subject to O3/H 2O2. Chitosan showed higher efficiency than PACl. Judging from the remarkable increase in floc size, it was proposed that released IOM formed complexes with cationic chitosan and resulted in enhanced dual flocculation and facilitated algae separation. {\textcopyright} IWA Publishing 2013.",

keywords = "Algae, Chitosan, Coagulation-flocculation, Extracellular organic matter, Harvesting, Polyaluminum chloride",

author = "R. Pranowo and Lee, \{D. J.\} and Liu, \{J. C.\} and Chang, \{J. S.\}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

year = "2013",

doi = "10.2166/wst.2013.001",

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TY - JOUR

T1 - Effect of O3 and O3/H2O2 on algae harvesting using chitosan

AU - Pranowo, R.

AU - Lee, D. J.

AU - Liu, J. C.

AU - Chang, J. S.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2013

Y1 - 2013

N2 - We examined the effects of pre-oxidation using ozone (O3) and a combination of O3 and hydrogen peroxide (O3/H 2O2) on algae suspensions and their harvesting. Inactivation of algae cells, release of intracellular organic matter (IOM), mineralization of extracellular organic matter (EOM), and changes in molecular weight distribution of EOM were found after pre-oxidation. Enhanced separation efficiency of turbidity, dissolved organic carbon (DOC), protein, and polysaccharide using chitosan and polyaluminum chloride (PACl) was found after pre-oxidation, especially when algae cells were subject to O3/H 2O2. Chitosan showed higher efficiency than PACl. Judging from the remarkable increase in floc size, it was proposed that released IOM formed complexes with cationic chitosan and resulted in enhanced dual flocculation and facilitated algae separation. © IWA Publishing 2013.

AB - We examined the effects of pre-oxidation using ozone (O3) and a combination of O3 and hydrogen peroxide (O3/H 2O2) on algae suspensions and their harvesting. Inactivation of algae cells, release of intracellular organic matter (IOM), mineralization of extracellular organic matter (EOM), and changes in molecular weight distribution of EOM were found after pre-oxidation. Enhanced separation efficiency of turbidity, dissolved organic carbon (DOC), protein, and polysaccharide using chitosan and polyaluminum chloride (PACl) was found after pre-oxidation, especially when algae cells were subject to O3/H 2O2. Chitosan showed higher efficiency than PACl. Judging from the remarkable increase in floc size, it was proposed that released IOM formed complexes with cationic chitosan and resulted in enhanced dual flocculation and facilitated algae separation. © IWA Publishing 2013.

KW - Algae

KW - Chitosan

KW - Coagulation-flocculation

KW - Extracellular organic matter

KW - Harvesting

KW - Polyaluminum chloride

UR - https://www.scopus.com/pages/publications/84875995738

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84875995738&origin=recordpage

U2 - 10.2166/wst.2013.001

DO - 10.2166/wst.2013.001

M3 - RGC 21 - Publication in refereed journal

C2 - 23508154

SN - 0273-1223

VL - 67

SP - 1294

EP - 1301

JO - Water Science and Technology

JF - Water Science and Technology

IS - 6

ER -