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Curtin University
Curtin Water Quality Research Centre

Postgraduate Students

Hanna Driessen

Thesis Topic: Chlorinous off-flavours in drinking water
Thesis Supervisor: Cynthia Joll
Thesis Co-supervisor: Anna Heitz (Civil Engineering)
Email: H.Driessen@curtin.edu.au

Fields of interest

Water chemistry, disinfection by-products in drinking water, tastes and odours in drinking water.

Biography

Hanna Driessen is currently undertaking a PhD project within the Curtin Water Quality Research Centre entitled Chlorinous Off-Flavours in Drinking Water. Chlorine tastes and odours are one of the most predominant complaints people have about their tap water, and more often than not the taste or odour is not caused by actual residual chlorine, rather by other compounds. Her project aims to examine the causes of chlorinous tastes and odours and try to identify some of the causative compounds in an effort to reduce their formation by knowing more about what causes them, and further understanding some of the reactions occurring.

Stacey Hamilton

Thesis Supervisor: Cynthia Joll
Email: S.Hamilton@curtin.edu.au

Fields of interest

Water chemistry, treatment of potable water

Biography

Stacey Hamilton is currently undertaking a PhD within the Curtin Water Quality Research Centre titled: "Characterisation and Treatability of Natural Organic Matter in Groundwaters Used for Drinking Water". The research involved in this project aims to study in detail, the origins, structural features and reactivity of natural organic matter (NOM) in a selection of Perth groundwaters. The NOM within these groundwaters will be isolated into more simplistic fractions using sophisticated or established laboratory procedures. Once isolated, the NOM fractions will be subjected to treatment by contemporary water treatment processes used in Western Australia to investigate their effectiveness with respect to removal of the different NOM fractions. The degree of removal by any treatment processes will be dependent on the structural features, molecular weight distribution and bioavailability of the NOM. The information obtained in this study may help optimise catchment management and treatment processes which will ultimately contribute to the improved quality of drinking water supplied to consumers. Stacey also does some casual research assistant work with CWQRC.

Clara Loi

Thesis Topic: Benzotriazoles and benzothiazoles in Australian wastewaters and drinking water sources
Thesis Supervisors: Cynthia Joll
Thesis Co-supervisors: Kathryn Linge, Francesco Busetti
Email: C.Loi@curtin.edu.au

Fields of interest

Water chemistry, the treatment of potable water and characterisation of natural organic matter, chlorinous off-flavours, treatment of wastewaters

Biography

Clara Loi is currently undertaking a PhD within CWQRC. Clara’s PhD project aims to study the reaction mechanisms, kinetics and processes involved in the formation and destruction of benzotriazoles and benzothialzoles. The kinetics of formation and destruction of these micropollutants by various advanced oxidation processes will be studied in laboratory trials using standard compounds. The occurrence and concentrations of of these compounds in Perth waters will also be studied. The results from this project will help to support one of the first indirect potable reuse schemes in Australia, the Beenyup Groundwater Replenishment Trial.

zuo

Thesis Topic: Organic halamines: An emerging class of nitrogenous disinfection by-products
Thesis Supervisor: Cynthia Joll
Thesis Co-supervisors: Kathryn Linge, Francesco Busetti
Email: zuotong.how@postgrad.curtin.edu.au

Fields of interest

Water chemistry, disinfection by-products, organic halamines, dissolved organic nitrogen

Biography

Zuo Tong How holds a Diploma in Chemical Engineering from Temasek Polytechnic, Singapore. In 2010, Zuo Tong came to Perth to study at Curtin University, where he completed his Bachelor of Science (Chemistry) degree in 2011 and B.Sc. (Chemistry) (Honours) degree in 2012. Zuo Tong commenced his PhD degree at Curtin University in 2013 to continue research in water chemistry. Zuo Tong's PhD project aims to develop and validate analytical methods for the detection of amino acids and organic halamines in various water systems. The reaction mechanisms, kinetics, formation and degradation of organic halamines will be studied. The occurrence and concentrations of these compounds in Western Australian water systems will also be studied.

doan

Thesis Topic: Effect of processing conditions on beta-casomorphins in yoghurt
Thesis Supervisors: AProf Dr Vicky Solah (Food Science and Technology, School of Public Health); Dr Stuart Johnson (Food Science and Technology, School of Public Health) and Dr Francky Busetti (Curtin Water Quality Research Centre, Department of Chemistry)
Email: docdoan.nguyen@postgrad.curtin.edu.au

Fields of interest

Milk, dairy products, yoghurt, beta-casomorphins

Biography

Doan Nguyen is currently a PhD student undertaking his project in the School of Public Health and in collaboration with the Curtin Water Quality Research Centre. He is interested in opioid peptides, beta-casomorphin 5 (BCM5) and beta-casomorphin 7 (BCM7), in milk and yoghurt. These peptides have been suspected to associate with non-communicable diseases in humans. He has investigated these peptides in different types of milk and commercial yoghurt in Australia. Currently, he has been focusing on the effect of fermentation and cold storage on formation/degradation of BCM5 and BCM7 in yoghurt.

xiang

Thesis Topic: Advanced characterisation of dissolved organic nitrogen in drinking water sources: Implications for mitigating against nitrogenous disinfection by-product formation
Thesis Supervisors: Rita Henderson and Stuart Khan (UNSW)
Thesis Co-supervisors: Kathryn Linge and Cynthia Joll (Curtin)
Email: Xiang.li@unsw.edu.au

Fields of interest

Water chemistry, Microbial chemistry in water, disinfection by-products in drinking water

Biography

Xiang Li is currently enrolled in PhD studies through the University of New South Wales (UNSW) Water Research Centre within the School of Civil and Environmental Engineering. He commenced his project, "Advanced characterisation of dissolved organic nitrogen in drinking water sources: Implications for mitigating against nitrogenous disinfection by-product formation", in 2012. His project is supported by an ARC Linkage project led by Curtin University with project partners including Water Research Australia and Water Corporation. Xiang's project focuses on characterizing aquatic dissolved organic nitrogen (DON) compounds using a range of advanced spectroscopic and chromatographic techniques. The N-disinfection by-product formation mechanisms from precursors, such as algal organic matter (AOM), will be investigated.