Stérilisation
The sterilization of water in aquaculture aims to destroy pathogenic bacteria and viruses present in the environment. The germicidal action of UVc is well known. UV lamps can be medium or low pressure. They are enclosed in sealed reactors or immersed in open channels. For heavier installations, the use of ozone (O3) is preferred. The highly oxidizing action of ozone destroys pathogenic germs but also oxidizes dissolved organic matter and allows better control of water quality (REDOX potential). There are also advanced oxidation installations which use the combined action of UVc and ozone or an additional oxidant.