A5091578657- Fecal contamination and water quality
- Parasitic Infections and Diagnostics
- Water Treatment and Disinfection
- SARS-CoV-2 detection and testing
- Amoebic Infections and Treatments
- Clostridium difficile and Clostridium perfringens research
- Water Systems and Optimization
- Pediatric health and respiratory diseases
- Domain Adaptation and Few-Shot Learning
- Pharmaceutical and Antibiotic Environmental Impacts
- Child Nutrition and Water Access
- Viral gastroenteritis research and epidemiology
- Membrane Separation Technologies
- Vibrio bacteria research studies
- Membrane-based Ion Separation Techniques
- Congenital Anomalies and Fetal Surgery
- Listeria monocytogenes in Food Safety
- Mycobacterium research and diagnosis
Gold Coast City Council
2021
University of the Sunshine Coast
2004-2008
Queensland Health
2004-2008
Scientific Services
2004
To use BioBall cultures as a precise reference standard to evaluate methods for enumeration of Escherichia coli and other coliform bacteria in water samples.Eight were evaluated including membrane filtration, plate count (pour spread methods), defined substrate technology (Colilert Colisure), the most probable number method Petrifilm disposable method. Enterobacter aerogenes containing 30 organisms each used. All tests performed using 10 replicates. The mean recovery both varied with...
ABSTRACT We evaluated the efficiency of five membrane filters for recovery Cryptosporidium parvum oocysts and Giardia lamblia cysts. These included Pall Life Sciences Envirochek (EC) standard filtration high-volume (EC-HV) filters, Millipore flatbed filter, Sartorius filter (SMF), Filta-Max (FM) depth filter. Distilled surface water samples were spiked with 10 cysts/liter. also EC EC-HV after a 5-s backwash postfiltration. The backwashing was not applied to other methods because design...
The equivalence of Oxoid (CM 1046) Brilliance((TM)) E. coli/coliform selective agar to mFC agar, as used in the Australian/New Zealand Standard Method detect thermotolerant coliforms and Escherichia coli water samples, was assessed.A total 244 samples were analysed parallel over a 5-month period. Sewage effluent (n = 131, sites 43), freshwater 62, 18) marine/brackish 51, 23) analysed. Wilcoxon matched-pairs signed-ranks test showed varying degree statistical difference between two methods....
Journal Article Evaluation of an alternative method for the enumeration and confirmation Clostridium perfringens from treated untreated sewages Get access T. Wohlsen, Wohlsen Public Health Microbiology, Queensland Scientific Services, Queensland, AustraliaFaculty Science, Education, University Sunshine Coast, Australia Tracey P.O. Box 594, Archerfield, 4108, Australia. E‐mail: tracey_wohlsen@health.qld.gov.au Search other works by this author on: Oxford Academic Google Scholar J. Bayliss,...
Research Article| August 01 2006 The occurrence of Cryptosporidium and Giardia in the Lake Baroon catchment, Queensland, Australia T. Wohlsen; Wohlsen 1Public Health Microbiology, Queensland Scientific Services, P.O. Box 594, Archerfield, 4108, Tel.: (+61) 7 3274 9075 Fax: 9175; E-mail: Tracey_Wohlsen@health.qld.gov.au Search for other works by this author on: This Site PubMed Google Scholar J. Bates; Bates 2Public Coopers Plains, B. Gray; Gray P. Aldridge; Aldridge 3Aquagen, Water Renewable...
We investigated the efficiency of residual ozone from an advanced water treatment plant with applied dose 2.5 mg l−1 to inactivate viable Cryptosporidium oocysts during summer (i.e. 24°C) and winter 18.9°C) in Queensland, Australia. Containers for sample collection were inoculated 1,000 filled ozonated water. Ozone concentrations measured at 0, 5 10 min intervals. Viability was determined by excystation. Non-ozonated plant, trip laboratory controls also analysed. The produced immediate...
Research Article| December 01 2008 An evaluation of membrane faecal coliform agar and Colilert-18® for the enumeration E. coli bacteria in surface water samples T. Wohlsen; Wohlsen 1Public Health Microbiology, Queensland Scientific Services, Coopers Plains, 4108, Australia E-mail: traceydw1@bigpond.com.au Search other works by this author on: This Site PubMed Google Scholar J. Bayliss; Bayliss Bates; Bates B. Gray; Gray S. Johnson; Johnson 2South East Water Corporation, Brisbane, Queensland,...