| Benefits |  | Reduce & Inhibit Corrosion |
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 | Reduce & Inhibit Corrosion
"Because of their extremely commonplace nature, waters intended for human consumption might at first be considered as "simple" fluids with regard to corrosion. In fact, this is by no means the case, since aqueous electrolytes possess specific features, which must be clearly understood in order to avoid corrosion problems."
J.La dion , Ecole Nationale Supacrieure
d'Arts et MĂctiers, Paris.
The Problem
Corrosion is found in water pipes, water treatment devices and various appliances.
It can even be proven that corrosion
is a problem for various grades of
stainless steel, corrosion with old-fashioned
type galvanised systems can be an
even bigger concern. Large sums of
money are consumed for the refurbishment
of pipes, systems and equipment.
Corrosion is the destructive attack
of a material by reaction with its
environment. Control of corrosion
can be achieved by recognising and
understanding corrosion mechanisms.
According to the papers of English
scientist Michael Faraday, It was
established that, "most corrosion
is electrochemical in nature." Since
corrosion is an electrochemical process,
it follows that electrochemical techniques
and electrochemical devices can be
used to prevent the corrosion process.
The Scalebuster's method of action
is electrochemical in nature. See
the Scale-buster Technology Overview . Once
the existing corrosion is cleared,
the unique internationally patented
design of the Scalebuster prevents
further attack in metal systems by
forming a passive layer of magnetite
( Fe3O4 ) on
the systems surface.
Additionally, the galvanic effects
of the special zinc anode offer cathodic
protection to pipe-work upstream and
downstream of the Scale-buster® Scalebuster®.
The zinc anode contributes to the
precipitating effect on negatively
charged particles. The zinc ions play
an important part in breaking down
existing rust and corrosion deposits
through interchange with iron-based
compounds.
The Scale-buster® technology precipitates
carbonates from solution, therefore,
water becomes less saturated and is
thus able to slowly start dissolving
old scale and corrosion encrustation
in water systems reducing pressure
drops due to restricted flow and saving
energy in heating/cooling appliances
and systems.
The Scalebuster's active-anode is
connected to the body of the unit
using a unique dry electrical connection,
in combination with its PTFE turbulence/cavitation
chambers corrosion build-up within
the units is prevented.
Normally very corrosion resistant
materials, which rely on thin oxide
films for protection, such as stainless
steel, can suffer from pitting and
crevice corrosion attack. These materials
rely on oxygen being present, so that
they can maintain their oxide films
(passive state). When oxygen is excluded
and the oxide films break down, the
material surface becomes active and
corrodes readily.
The link between Scale & Corrosion
"Slight corrosion of iron promotes the precipitation of calcium carbonate (Lime-scale), since the Fe2+ ions enable the nucleation of CaCO3 at low super-saturations"
E.REVAULT, J.BARON, J.LaDION,
Influence des ions Fe2+
sur le pouvoir entartrant de l'eau.
Corrosion in drinking water applications
Even stainless steel used in drinking
water applications can corrode due
to the chloride content.
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