Municipal Water Treatment by ozone

Oxygen VSA for Ozone Generators

Traditionally drinking water is treated by Chlorine for disinfection. Ozone has excellent disinfection and oxidation properties. Advantages of Ozone for water treatment are

Lower concentrations required - A much smaller concentration of Ozone is required as compared to Chlorine. This results in smaller water treatment plant.

Removes Odor taste causing organic matter-Ozone effectiely neutralizes Organic matter that cause Odor and taste and unlike Chlorine, does not have a strong odor of its own.

Oxydizes residual pesticides -

Eliminates disinfection byproducts - Chlorine can react organic matter and form unpleasant byproducts.

Ozone is produced from Air using various process like electric arc. Use of oxygen reduces the size of Ozone generation equipment.

Oxygen can be supplied by onsite oxygen generators or Liquid Oxygen supply(LOX). LOX is trucked in to the plant daily for a nearby Cryogenic plant. Using a combination Onsite/LOX oxygen supply has many advantages

LOX supply can be interupted by road conditions

LOX prices vary widely based on demand and supply

 

Onsite VPSA based Oxygen plants produce Oxygen cheaper than LOX in most cases.

 

LOX may still be used as a backup source and thus increasing the reliability of the oxygen supply system.