The Use of Alternate Microbiological Indicators of Water Treatment Plant Performance

Inactivation of indicator organisms in wastewater treated by a high rate algal pond system

“…Following discussion with the regulator, the South Australian Department of Health and Ageing, indigenous aerobic spore-forming bacteria (ASFB) were identified as potentially suitable indicator organisms for the assessment of HRAP protozoa disinfection performance. The rationale for this choice was that ASFB have similar physical properties to protozoa, are present in sewage in high numbers and have been used successfully as indicator organisms for protozoa in drinking water treatment assessment (Nieminski et al 2000;Huertas et al 2001;Hijnen et al 2006).…”