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Table 4 Indicator counts for solar disinfected water samples collected after 6 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) after 6 hrs Reduction (%)
52 °C E. coli 2 BDL >99
HPC 7.05 × 106 BDL >99
68 °C E. coli 4 BDL >99
HPC 7.95 × 107 BDL >99
70 °C E. coli 2 BDL >99
HPC 9.95 × 107 BDL >99
75 °C E. coli 2 BDL >99
HPC 8.7 × 107 BDL >99
89 °C E. coli 2 BDL >99
HPC 1.45 × 107 BDL >99
  1. (Note: BDL below detection limit)