Commercial Water Filter

Commercial backwashing filters
Many businesses looking for commercial water filtration systems will start with a backwashing filter. These commercial water filters include large tanks that contain a filtering medium that is automatically washed and regenerated after a certain amount of time. By periodically running water backwards through the system, cleaning the filtering media and rinsing away impurities, they can be used again and again often for a year or more before the media is exhausted and needs to be changed. The media in the backwashing filter's tank can vary according to what water problem needs to be treated.

 

Common backwashing commercial water filter media includes the following:

 

• Granular activated carbon (GAC) to remove chlorine and organic contaminants
• Catalytic carbon to remove chloramines and organics and facilitate oxidation
• Katalox-Light, which uses oxidation to help remove iron and manganese
• Calcite and magnesium oxide for pH neutralization
• Sediment media to remove silt, sand, and large particles

 

Commercial cartridge filters
Some business prefer commercial water filtration systems that use cartridges instead of backwashing tanks. A cartridge water filter can have a number of advantages, including the fact that the filtering cartridge can simply be removed and replaced once it's exhausted. This type of system can also be easily customized because the filter cartridges are typically made in one or more standard sizes; this means that you can pull out an old cartridge and replace it with a new one that deals with a completely different water issue if needed.

 

Like backwashing filter media, what's in the filter cartridge will depend on the specific water problem that you're trying to address. You can find commercial water filters made with GAC or catalytic carbon, for sediment removal, to add minerals back into the water, and more.

 

Reverse osmosis systems
Many commercial water filtration systems include reverse osmosis (RO). An RO system works by pushing water through a special membrane with very tiny pores that block most contaminants. This results in bottle-quality water. It's very important for water to be pre-treated before it goes through the RO system, however, as certain chemicals (like chlorine) can damage the membrane. In addition, you may need a storage tank, anti-scalant, and disinfection system.

 

Deionization
For businesses that require high purity water, such as hospitals and laboratories, a commercial water filter with a deionization (DI) system may be needed. Deionization systems use a special combination of resins – which may be mixed or kept separate that act as ion exchange media. Cation resin attracts positively charged ions in the water, while anion resin attracts are negatively charged ions. The resin then exchanges these ions for hydrogen and hydroxyl ions respectively. When combined, the hydrogen and hydroxyl form pure water.

 

Deionization systems can be expensive, especially because the process required to regenerate the resins uses chemicals that cannot simply be rinsed down the drain. They produce exceptionally pure water, however, and can be worth the cost for some businesses.

 

Ozone systems
Ozone is a very strong oxidizer and sanitizer, and commercial water filtration systems that use ozone are very effective at treating water for many different types of contamination. Unfortunately, ozone can also be more expensive to produce and maintain than other systems, and it usually needs to be combined with other technologies such as a carbon commercial water filter to be at its most effective.