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Appendix 6. Sample of a data sheet used for the experiments on solar disinfection of contaminated water exposed in a continuous-flow system.

Experiment No.  7     Solar Reactor:  IA  
Date: 13 Aug. 1986
Sky conditions: clear   hazy   partly cloudy  x  cloudy  
Contaminant added: sewage (%)  0.2  bacterial culture       
Bacteria tested:   Coliforms   Culture medium:   Desoxychol, Lactose Agar   Manufacturer:   Difco Laboratories  
Incubation: temperature   35.5 (°C)   period   24   (h)

Time of day Water temperature (°C) Flow rate (L/h) Solar UV-A Bacterial counts (CFU/mL) Bacterial survival (%)


Exposure time (min) Intensity (W/m2) Fluence (W h/m2)
InfluentEffluent MeanInfluent Effluent

101532.034.033.011.232611.234.872 15044520.7
104033.035.534.211.232612.935.601 71528516.6
110034.036.035.011.232615.556.741 740804.6
113034.036.535.211.232617.807.711 02013513.2
120035.037.036.011.232619.358.392804014.3
123036.037.536.811.232619.558.473404011.8
130037.039.038.011.232619.558.476569.2
Mean +/- SDa34.436.535.511.232616.577.201 04514712.9
+/-l.7+/-l.6+/-l.7+/-0.00+/-0+/-3.40+/-l.50+/-835+/-l60+/-8.2


aSD, standard deviation

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