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Removal of Fecal Indicators, Pathogenic Bacteria, Adenovirus, Cryptosporidium and Giardia (oo)cysts in Waste Stabilization Ponds in Northern and Eastern Australia

Author

Listed:
  • Maxim Sheludchenko

    (Smart Water Research Centre, Building G51, Griffith University, Southport, Queensland 4222, Australia
    Genecology Research Centre, University of the Sunshine Coast, Sippy Downs, Queensland 4558, Australia)

  • Anna Padovan

    (Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, Northern Territory 0909, Australia)

  • Mohammad Katouli

    (Genecology Research Centre, University of the Sunshine Coast, Sippy Downs, Queensland 4558, Australia)

  • Helen Stratton

    (Smart Water Research Centre, Building G51, Griffith University, Southport, Queensland 4222, Australia)

Abstract

Maturation ponds are used in rural and regional areas in Australia to remove the microbial loads of sewage wastewater, however, they have not been studied intensively until present. Using a combination of culture-based methods and quantitative real-time PCR, we assessed microbial removal rates in maturation ponds at four waste stabilization ponds (WSP) with ( n = 1) and without ( n = 3) baffles in rural and remote communities in Australia. Concentrations of total coliforms, E. coli , enterococci, Campylobacter spp., Salmonella spp., F+ RNA coliphage, adenovirus, Cryptosporidium spp. and Giardia (oo) cysts in maturation ponds were measured at the inlet and outlet. Only the baffled pond demonstrated a significant removal of most of the pathogens tested and therefore was subjected to further study by analyzing E. coli and enterococci concentrations at six points along the baffles over five sampling rounds. Using culture-based methods, we found a decrease in the number of E. coli and enterococci from the initial values of 100,000 CFU per 100 mL in the inlet samples to approximately 1000 CFU per 100 mL in the outlet samples for both bacterial groups. Giardia cysts removal was relatively higher than fecal indicators reduction possibly due to sedimentation.

Suggested Citation

  • Maxim Sheludchenko & Anna Padovan & Mohammad Katouli & Helen Stratton, 2016. "Removal of Fecal Indicators, Pathogenic Bacteria, Adenovirus, Cryptosporidium and Giardia (oo)cysts in Waste Stabilization Ponds in Northern and Eastern Australia," IJERPH, MDPI, vol. 13(1), pages 1-18, January.
    • Handle: RePEc:gam:jijerp:v:13:y:2016:i:1:p:96-:d:61577
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    Cited by:

    1. Alexandra Bastaraud & Philippe Cecchi & Pascal Handschumacher & Mathias Altmann & Ronan Jambou, 2020. "Urbanization and Waterborne Pathogen Emergence in Low-Income Countries: Where and How to Conduct Surveys?," IJERPH, MDPI, vol. 17(2), pages 1-19, January.
    2. Shervin Hashemi & Mooyoung Han & Eun Namkung, 2018. "Fate of Fecal Indicators in Resource-Oriented Sanitation Systems Using Nitrifying Bio-Treatment," IJERPH, MDPI, vol. 15(1), pages 1-7, January.

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