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Water Scale And
Sedimentation Removal System!
Water Scale is a coating or precipitate
deposited on surfaces that are in contact with hard water. Water that
contains carbonates or bicarbonates of calcium or magnesium is
especially likely to cause scale. When water is heated or evaporation
takes place, scale minerals precipitate layers of rocklike deposits
inside pipes, water heaters, equipment, and on fixtures and
glassware. While most common scale is a result of calcium carbonate,
other combinations of ions commonly found in water offer a variety of
scale.
Water Scale deposits interfere with heat
exchangers and reduce their efficiency by insulating the heat transfer
surfaces. The most common form of scale in cooling water systems is calcium
carbonate (CaC03). In the water, calcium ions combine with bicarbonate to
form calcium bicarbonate: (Ca++)+(2HCO) Ca(HCO3)2.
 If Water Scale deposits are left to accumulate,
water flow is restricted and piping and heat exchanger tubes become
plugged. Ultimately, ignoring scale depositions can lead to the
destruction and possible failure of heat exchanger tubes. In addition
to loss of efficiency, process contamination can occur.
Common Evidence of Water Scale
Water Scale is most visually evident as hard
white to off white deposits which buildup in faucets, showerheads and
drains. Water Scale leaves deposits on dishes, glassware, sinks,
countertops and on vehicles that were just washed. Most Water Scale
formations are hard and very difficult to clean. Visual references also
include fixtures such as toilets, bathtubs, showers and appliances like
coffee and icemakers. Swimming pools and spas can experience scale build up
on tile and pump equipment. Cooling towers have tremendous scale problems
that causes industries alone a billion dollars a year to remove.
Evaporative coolers, boilers, car washes, irrigation systems, processing
equipment, paper pulp mills all experience Water Scale problems. Because
Water Scale forms a "coating" it can significantly effect thermo-transfer
and reduce the flow of fluids. The increase of fuel cost due to scale
build-up is astronomical.
A
Billion Dollar Problem!!!
Water borne sedimentation i.e. Scale, rust, lime,
mud and silica that builds up in the waterside of your equipment causes
Billions of dollars in losses to industries in breakdowns, unplanned shutdowns,
process contamination, high product reject rate, expensive parts replacements
etc..
Present/Conventional Methods Used to Remove Water Borne
Sedimentation.
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Industrial
Acids e.g. Phosphoric Acid, Sulfuric Acid, Barium Nitrate, Glycine
Acid etc..
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Last but
not least - replacement of the
equipment!
None of the
above are effective, some are even damaging to the equipment, in that some
of these methods can only bring the equipment back to optimum operating
efficiencies by compromising downtime, and the integrity of the
equipment.
Present
Methods of Preventing Sedimentation or better known as
Fouling.
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Inhibitors
- scale, rust, algae, bacteria
Some of the
above methods are effective in SLOWING DOWN the process of scaling and
should be used, BUT it does not remove or totally prevent sedimentation
build up.
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