Dealkalisation Plant

The presence of high levels of temporary hardness (high alkalinity) in the raw water supply feeding a highly rated package boiler can result in high blowdown rates and an associated very high level of carbon dioxide in the steam. The resultant condensate has an acidic pH and the water is very aggressive to the metals in the condensate system. This is where the Envirogen Dealkalisation Plant comes in.

Iron fouling of steam traps, poor operation of steam traps and high cost of replacement condensate pipework can result in a significant on cost to the boiler operation. To treat this type of water related problem requires consideration be given to the Envirogen Dealkalisation/Degas/Base Exchange plant.

The reliable Envirogen standard range of Degas-Base Exchange Dealkalisation Plant effectively reduces the alkalinity and hardness salts from the water giving a water of the following composition:

• Bicarbonate alkalinity – less than 5% average of the input alkalinity.
• Total dissolved solids reduction – approximately equal to the temporary hardness.