Skip to main content

Table 3 Indicator counts for solar pasteurized water samples and the corresponding untreated water samples collected at various temperatures

From: Comparative analysis of solar pasteurization versus solar disinfection for the treatment of harvested rainwater

Pasteurization Temperature

Indicator

Untreated Water Sample (Ave. CFU/100 mL)

Treated Water Sample (Ave. CFU/100 mL)

Reduction (%)

71 °C

E. coli

2

BDL

>99

HPC

7.05 Ă— 106

BDL

>99

77 °C

E. coli

2

BDL

>99

HPC

6.62 Ă— 107

BDL

>99

81 °C

E. coli

2

BDL

>99

HPC

1.01 Ă— 107

BDL

>99

86 °C

E. coli

2

BDL

>99

HPC

1.46 Ă— 107

BDL

>99

91 °C

E. coli

2

BDL

>99

HPC

1.43 Ă— 107

BDL

>99

93 °C

E. coli

3

BDL

>99

HPC

7.4 Ă— 107

BDL

>99

  1. (Note: BDL below detection limit)