Electric discharge method purifies drinking water energy-efficiently
Lehtikuva / Veikko Wahlroos The electric discharge method developed by polytechnicians from Lappeenranta and Tomsk may help in resolving every summer’s blue-green algae problem.Researchers from Lappeenranta University of Technology and Tomsk Polytechnic University in Russia have coalesced in order to develop a more energy efficient and environmentally friendly device for water purification.
The device applies a purification method, which is based on technology utilizing electric discharge. According to research this method is up to three times more energy efficient than for instance the traditional ozonization method. The team is in the process of patenting the device.
The water generated as a result of the electric discharge method is of good quality, clear and odourless, when compared for instance to water produced by chlorine purification. Possible applications for the brand new method can be found widely. For instance, it can be utilized in the removal of algicides and pesticides, lignin and pathogens.
Drinking water in Russia and elsewhere in Europe is often sourced from surface water. There is a real need for more efficient means of water purification. The new device has been tested also as a solution for the Saimaa blue-green algae problem, and it is effective in destroying algicides and algae growth.
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