Naïade solar water purifier
Technical details

Daily capacity

Based on 9 hours of daylight: 2500 L

Number of people served daily

According to WHO Drinking Water Standards: 500

Possible water sources

  • Dug well
  • Borehole
  • River or creek
  • Lagoon
  • Lake
  • Irrigation Channel

Influent water quality required

  • Fresh water, TDS < 500 mg/l
  • pH 6,5 - 8
  • TSS, < 100 mg/l
  • No chemical pollution
  • Fe < 0,2 mg/l
  • Hardness < 300 mg/l
  • WHO Standards for drinking water with exception of Pathogens (Bacteria, Viruses, Protozoa, Helminth Eggs/Nematodes)

Disinfection properties

  • UV Dose > 40 mJ/cm2 @ UVT 1 cm > 80%
  • Removal of suspended solids to < 10 micron
  • Removal of Helminth eggs to < 1/l following international standards
  • Removal of Guinea Worm Larvae
  • Inactivation of Human Pathogens such as Fecal Coliforms to < 1/100 ml
  • Inactivation of viruses such as Polio and Hepatitis to < 1/l
  • Inactivation of Protozoa such as Cryptosporidium and Giardia to < 2/100 ml

Flow

Flow capacity at spout with filled tank: 5 l/min

UV lamp life

More than 10.000 h or 3 years @ 9 h/day continuous service.

Filter replacement

Depending on TSS of influent/washing frequency: 12 months

Back-up battery

12 V - 50 Ah for 36 hrs continuous service before/after Daylight.