|
Reverse Osmosis (RO) |
|
|
|
 |
Reverse osmosis systems purify water by forcing pressurized water through a
very fine, plastic membrane. If the raw water being treated comes from a well
or another private source, disinfection and pre-filters (to remove chlorine
and/or particulates/sediment) may be needed in advance of the R/O unit to
remove contaminants that can foul or damage the membrane.
Stages of reverse osmosis:
During the initial filtration stage, tap water or well water (pressurized by a
booster pump) is passed through a particle filter (a pre-filter) that removes
silt, sediment, sand, and clay particles that might clog the R/O membrane.
The water is then forced through an activated carbon filter that traps minerals
and contaminants such as chromium, mercury, copper, chloramine and pesticides.
It also removes chlorine, which is important, as chlorine will shorten the life
of the membrane.
Water is transferred under pressure into the R/O module, allowing only clean
water to pass through the small pores in the membrane. Impurities unable to
pass through the membrane are left behind and flushed down the drain.
Treated water is then sent to a storage tank.
Treated water is passed through an activated carbon filter before use to
further improve the water's taste and smell.
|
|
|
|