Abstract
This study investigated a method of removing algae by energizing a metal electrode plate set in water containing abnormally proliferated algae. As algae have negative charge in water, they migrated to the anode by electrophoresis in an electric field. Combining with cations eluting from the anode, especially aluminum ions, the algae formed cohesive floc and then adhered on the anode surface without returning into the water. In the continuous flow apparatus, algae were removed at high removal rate by taking out the algae adhered on anode regularly. It was shown that the electrochemical method can efficiently remove algae from water.