Researchers use ultrasound to destroy cyanobacteria in water
After an analysis of the water quality of the Mount Gambier valley lakeRecently, authorities in the region have been warned of the presence of harmful blue and green algae, as well as cyanobacteria. Recently, engineers have managed to develop a device capable of destroying these specific algae using ultrasound. responsible for certain diseases in humans. The targeting accuracy is extraordinary, which makes it a promising technology in terms of its potential applications.
Concretely, the scientists identified specific bacteria, only present in toxic algae. It was therefore necessary to build a device that targets and eliminates these bacteria directly inside aquatic plants.
The float was therefore tested and used on the Lac de la Mount Gambier Valley. Aaron Izzard, Environmental Sustainability Officer for Mount Gambier City Council, helped coordinate the work between the City Council and the engineers.
Machine destroys harmful algae with surgical precision
The microorganisms targeted by the device are responsible for the buoyancy of harmful aquatic plants. Attacking the tiny internal constituents of these harmful plants therefore leads to their certain submersion.
Therefore, these algae gradually sink and end up trapped at the bottom of the lake where they eventually break down. It is important to note that during this process, no other aquatic populations are harmed.
“The float sends an ultrasonic signal through the water, which only targets algae and bacteria. It disrupts the components of these organisms that allow them to float. So they sink to the bottom and die. »
Aaron Izzard, Environmental Sustainability Officer for Mount Gambier City Council
The device remains visible and does not disturb the population in any way
The float has very clear markings to continuously eliminate bacteria without hampering recreational activities Population. To achieve this, the designers opted for a visible design while maintaining a modest size.
Furthermore, the municipal officials of Mount Gambier would like to point out that this lake remediation project is quite profitable in the long and short term.
“People can still ride jet skis or boats and do loops around the lake. There is still plenty of room to use the lake for water sports. »
Aaron Izzard, Environmental Sustainability Officer for Mount Gambier City Council
SOURCE: ABC.NET.AU
