[[Image:naiade1.jpg|thumb|right|200px| The Naiade water purification unit used in India. Note the PV panel above the unit.]]
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The Naiade water disinfection unit is a spin-off from Nedap’s and Trojan’s know-how of large scale drinking water and industrial waste water treatment plants. The Naiade drinking water disinfection unit very effectively combines the potential offered by solar energy, UV light and battery back-up.
# a UV light, which kills any remaining bacteria and viruses
===Suitable conditions ===
The unit has been designed for operation under harsh conditions in grass root societies. Units can be installed, operated and maintained by people with no or little/low technical education or background.
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! width="50%" style="background:#efefef;" | Advantages
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| valign="top" | - Immediate use after installation <br>
'*' note: A special insert for the removal of arsenic can be supplied as a non-standard item. More info via [http://www.cleanwaternow.nl].
===Operations and maintenance===
[[Image:naiade3.jpg|thumb|right|200px| Adding source water]]
[[Image:naiade4.jpg|thumb|right|200px| Protected unit in a cage]]
Note: the capital costs exclude the costs for water sanitation awareness programs and maintenance training, local support for installation and maintenance, transport and fees and duties.
===Field experiences===Naiade projects have been realized in:
Afghanistan, India, Sri Lanka, Pakistan, Indonesia, China, Brazil, Surinam, Mexico, Colombia, Morocco, Senegal, Sudan, Mozambique, Madagascar, Burkina Faso, Ghana, Tanzania, Cameroon, Benin, Mali, Egypt, South Africa, Kenya, Nigeria.
==Reference manuals=Manuals, videos, and links===
*[http://www.cleanwaternow.nl www.cleanwaternow.nl]
*[http://www.xing.com www.xing.com]
*[http://www.purificationdeleau.com www.purificationdeleau.com]
===Company Information===
Company: Nedap NV <br>
Visitor address:<br>
===Acknowledgements== ====References====
*KIWA Evaluation report. Declaration of the performance of the Naiade, Nieuwegein, The Netherlands, January 2005
*IFFCO Declaration of performance, New Delhi, India, April 2008