A pilot-scale investigation of ozonation and advanced oxidation processes at Choa Chu Kang Waterworks

A pilot-scale investigation of ozonation and advanced oxidation processes at Choa Chu Kang Waterworks

A two-year comprehensive advanced oxidation processes (AOPs) pilot test was completed for a Singapore waterworks in 2011–2013. This study focused on oxidative removal of spiked organic contaminants with ozone and ozone-based AOPs (ozone application together with hydrogen peroxide, which is necessary...

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Veröffentlicht in:Water practice and technology 2015-03, Vol.10 (1), p.43-49
Hauptverfasser: Wang, Jenny, Ried, Achim, Stapel, Harald, Zhang, Yaning, Chen, Minghui, Ang, Wui Seng, Xie, Rongjing, Duarah, Ankur, Zhang, Lifeng, Lim, Mong Hoo
Format: Artikel
Sprache:eng
Schlagworte:
Artificial sweeteners
Contaminants
Design
Detection
Disinfection
Dosage
Drinking water
Energy efficiency
Hydrogen peroxide
Low pressure
Nonsteroidal anti-inflammatory drugs
Organic contaminants
Oxidation
Ozonation
Ozone
Ozonization
Philosophy
Removal
Scale (corrosion)
Studies
Treated water
Ultraviolet radiation
Water quality
Water utilities
Waterworks
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Zusammenfassung:A two-year comprehensive advanced oxidation processes (AOPs) pilot test was completed for a Singapore waterworks in 2011–2013. This study focused on oxidative removal of spiked organic contaminants with ozone and ozone-based AOPs (ozone application together with hydrogen peroxide, which is necessary for AOPs). The ‘optimized H2O2 dosage’ test philosophy was verified during the test period – keeping the residual ozone at 0.3 mg/L in the water for disinfection purpose by minimizing the H2O2 dosage. This study also monitored the bromate concentration in both ozone- and AOP-treated water, and all the samples reported below the laboratory detection limit (
ISSN:1751-231X
1751-231X
DOI:10.2166/wpt.2015.006