Performance assessment of oxidants as a biocide for biofouling control in industrial seawater cooling towers

Mohammed Al-Bloushi; Jayaprakash Saththasivam; Sari Al-Sayeghc; Sanghyun Jeong; Kim Choon Ng; Gary L. Amy; Tor Ove Leiknes

doi:10.1016/j.jiec.2017.10.015

Performance assessment of oxidants as a biocide for biofouling control in industrial seawater cooling towers

Mohammed Al-Bloushi^*, Jayaprakash Saththasivam, Sari Al-Sayeghc, Sanghyun Jeong, Kim Choon Ng, Gary L. Amy, Tor Ove Leiknes

^*Corresponding author for this work

QEERI - Water Center

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Biofouling can significantly hamper the efficiency of seawater cooling towers. The aim of this study was to investigate the effectiveness of alternative oxidants (i.e. ozone (O₃) and chlorine dioxide (ClO₂)) comparing with commonly being used chlorine in biofouling control. Effects of cycle of concentration, temperature and oxidant dosage along with residual decay and kinetics were studied. Even at lower oxidant dosage (total residual oxidant equivalent = 0.1 mg/l Cl₂), ClO₂ showed a better disinfection effect compared to chlorine and O₃. Results of bench-scale studies will be helpful in the selection of appropriate oxidant for seawater cooling tower operation.

Original language	English
Pages (from-to)	127-133
Number of pages	7
Journal	Journal of Industrial and Engineering Chemistry
Volume	59
DOIs	https://doi.org/10.1016/j.jiec.2017.10.015
Publication status	Published - 25 Mar 2018

Keywords

Biocide
Biofouling
Cooling tower
Disinfection
Oxidants
Seawater

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10.1016/j.jiec.2017.10.015

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title = "Performance assessment of oxidants as a biocide for biofouling control in industrial seawater cooling towers",

abstract = "Biofouling can significantly hamper the efficiency of seawater cooling towers. The aim of this study was to investigate the effectiveness of alternative oxidants (i.e. ozone (O3) and chlorine dioxide (ClO2)) comparing with commonly being used chlorine in biofouling control. Effects of cycle of concentration, temperature and oxidant dosage along with residual decay and kinetics were studied. Even at lower oxidant dosage (total residual oxidant equivalent = 0.1 mg/l Cl2), ClO2 showed a better disinfection effect compared to chlorine and O3. Results of bench-scale studies will be helpful in the selection of appropriate oxidant for seawater cooling tower operation.",

keywords = "Biocide, Biofouling, Cooling tower, Disinfection, Oxidants, Seawater",

author = "Mohammed Al-Bloushi and Jayaprakash Saththasivam and Sari Al-Sayeghc and Sanghyun Jeong and Ng, {Kim Choon} and Amy, {Gary L.} and Leiknes, {Tor Ove}",

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year = "2018",

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doi = "10.1016/j.jiec.2017.10.015",

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AU - Al-Bloushi, Mohammed

AU - Saththasivam, Jayaprakash

AU - Al-Sayeghc, Sari

AU - Jeong, Sanghyun

AU - Ng, Kim Choon

AU - Amy, Gary L.

AU - Leiknes, Tor Ove

PY - 2018/3/25

Y1 - 2018/3/25

N2 - Biofouling can significantly hamper the efficiency of seawater cooling towers. The aim of this study was to investigate the effectiveness of alternative oxidants (i.e. ozone (O3) and chlorine dioxide (ClO2)) comparing with commonly being used chlorine in biofouling control. Effects of cycle of concentration, temperature and oxidant dosage along with residual decay and kinetics were studied. Even at lower oxidant dosage (total residual oxidant equivalent = 0.1 mg/l Cl2), ClO2 showed a better disinfection effect compared to chlorine and O3. Results of bench-scale studies will be helpful in the selection of appropriate oxidant for seawater cooling tower operation.

AB - Biofouling can significantly hamper the efficiency of seawater cooling towers. The aim of this study was to investigate the effectiveness of alternative oxidants (i.e. ozone (O3) and chlorine dioxide (ClO2)) comparing with commonly being used chlorine in biofouling control. Effects of cycle of concentration, temperature and oxidant dosage along with residual decay and kinetics were studied. Even at lower oxidant dosage (total residual oxidant equivalent = 0.1 mg/l Cl2), ClO2 showed a better disinfection effect compared to chlorine and O3. Results of bench-scale studies will be helpful in the selection of appropriate oxidant for seawater cooling tower operation.

KW - Biocide

KW - Biofouling

KW - Cooling tower

KW - Disinfection

KW - Oxidants

KW - Seawater

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DO - 10.1016/j.jiec.2017.10.015

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VL - 59

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JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -

Performance assessment of oxidants as a biocide for biofouling control in industrial seawater cooling towers

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Keywords

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