Solvatten (literally “solar water”) is a water purifier similar in appearance to a gallon and that uses UV radiation from the sun as its source of energy. It can be filled with up to 10 liters of water and water ready for human consumption can be obtained after about 3 to 5 hours (there is an indicator that changes from red to green when the water reaches the required temperature).
In this way, the spread of diseases such as diarrhea, one of the main causes of infant mortality, is avoided. In addition, thanks to its special filter, very cloudy water can also be purified.
According to its inventor Petra Wasdrom, she created the product thinking about the people who live with dirty water around the world and the children who are suffering from diseases from it, which although it is easily preventable, people despite living with a lot of sun, is not using it. The Solvatten has been tested in Kenya and Nepal with good results and the responses have been positive because of the ease of use, since no technical knowledge is needed to understand how to use it.
From Solvatten they calculate that more than 300,000 people in 20 different countries use their water purifying can.
How Solvatten works.
The drum is filled with water, which has a filter to prevent the passage of large impurities. Then it opens in the middle like a book to put it directly in the sun.
The membranes let in the sun’s ultraviolet rays, which destroy the DNA of bacteria in the water. The tank heats the water to 75 ° C.
The purification process lasts between 2 and 6 hours, depending on the amount of sun to which the drum is exposed.
Solvatten provides hot, purified water where it is needed, without burning fuel and without the need for chemicals.
It has a durability of between 7 and 10 years. A single drum meets the needs of a family of 5-6 members.
A really useful invention that can definitely help reduce the impacts and consequences of the use of firewood, as well as reduce the high rate of infant mortality.
The idea came about more than 20 years ago. Its inventor, Petra Wadstrom, is one of the most renowned environmentalists in Sweden. Wadstrom saw Indonesian women and children contracting illnesses from drinking unsafe water, so she wanted to give them a solution, providing them with a method to purify their water.
You can see more information about this product on its website: http://www.solvatten.se