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Table 5 Indicator counts for solar disinfected water samples collected after 8 hrs of treatment 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

Disinfected Temperature Indicator Untreated Water Sample (Ave. CFU/100 mL) Treated Water Sample (Ave. CFU/100 mL) 8 hrs Reduction (%)
63 °C E. coli 4 BDL >99
HPC 7.95 × 107 BDL >99
67 °C E. coli 2 BDL >99
HPC 9.95 × 107 BDL >99
72 °C E. coli 13 BDL >99
HPC 9.4 × 107 BDL >99
76 °C E. coli 2 BDL >99
HPC 8.7 × 107 BDL >99
86 °C E. coli 2 BDL >99
HPC 1.45 × 107 BDL >99
  1. (Note: BDL below detection limit)