The Baba Atomic Research Centre (BARC) has developed a “domestic water purification device” on photocatalytic disinfection of water using non-toxic, reusable photocatalyst and solar light. The device does not require electricity, chemical and high pressure tap water. The device is meant for purification of drinking water with respect to suspended particles, dissolved organics and bacteria. This device purifies water in batch mode and works on the principle of photocatalytic disinfection of water over photocatalyst using solar light. This device is meant for purification of drinking water with respect to suspended particles, dissolved organics and bacteria. It purifies water in batch mode. The device of 60 cm x 65 cm x 10 cm size can disinfect ~ 15 liters of drinking water daily using solar light.
In a large number of underdeveloped and developing countries, there is scarcity of safe drinking water. People are forced to drink contaminated water infested with disease causing bacteria, which causes many water born diseases. Various methods like chlorination, ozonation, boiling and irradiation by UV light are used to purify water. However these methods require chemicals, fuel, and electricity, which are not available in remote undeveloped areas.
Some of the important features of the device are;
- It works on solar light. (Even diffused sunlight on a cloudy day is sufficient)
- Does not require electricity, chemical and high pressure tap water.
- Very effective as it kill bacteria > 99.99 % (4log scale).
- Almost maintenance free except occasional cleaning of the glass cover, prefilter and tray.
For further details contact: Bhabha Atomic Research Centre,
Trombay, Mumbai – 400 085 India , Telephone: +91-22-25505050 / 25592000, Email: webmaster@barc.gov.in
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