Disinfection means the removal, deactivation or killing of pathogenic microorganisms. Microorganisms are destroyed or deactivated, resulting in termination of growth and reproduction. When microorganisms are not removed from drinking water, drinking water usage will cause people to fall ill. There are many technologies available to disinfect the water and waste water. Ewalt can supply several disinfection techniques with the emphasis on environmentally friendly solutions. The techniques are: