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Filtration
Filtration can cover a few different processes,
but is generally defined as the removal of suspended solids from water. It can
also refer to the removal of organic matter, and the removal of iron and
manganese. Typically, water to be filtered is passed through a vessel containing
a bed of filter media, which is specific to the application.
- Particulate Filtration -- removes sand, silt
and suspended particles.
- Activated Carbon Filtration -- removes organic
matter and chlorine.
- Manganese Greensand Filtration -- removes iron
and manganese.
Water Softening and
Dealkalization
Water softening and dealkalization are both
process that change the properties of water. They don't remove particles like
filtration, nor do they reduce dissolved minerals like reverse osmosis. They are
both ion exchange processes, which means they replace one type of ion in the
water with another type.
Softening -- removes "hardness" ions (calcium, magnesium).
Dealkalization -- removes alkalinity
(bicarbonate) ions.
- Chloride Anion Dealkalization
Dealkalizer Applications
Typical applications where dealkalizers are used include:
- Heating and Cooling
- Reduces boiler fuel, water, and chemical costs
on boilers and cooling towers, by allowing increased cycles of concentration.
- Steam Generation
- Reduces corrosion in the condensate return
line.
- General
- Acts as a pretreatment for reverse osmosis
systems to reduce the pH, thus prolonging module life, without acid handling.
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