ProCare-LP®
Copper Silver Ionisation
Water Treatment Comparison Chart:BACK)
The following chart compares different water treatment technologies.
ProCare-LP™
Copper Silver
Ionisation
Cu+2/Ag+
Chlorine
Cl2
Chlorine
Dioxide
ClO2
Ozone
UV
Heat
Eradication
What
is it?
Controlled
and monitored electrolytic dissolution of ionic Copper and
ionic Silver into the water, by applying a low DC current
between electrodes. The current will vary from 12VDC @ 3amps
up to 100VDC @ 20 compatible with all water systems.
Gas (compressed) Calcium Hypochlorite
Sodium Hypochlorite Can also be made using good quality salt,
potable water - electric power (electro chlorination)
Mix of Potassium Chlorate and
Hydrochloric Acid. Initially called Euchlorine
Oxygen containing feed gas in
an electrical discharge which is passed between electrodes
charged at 20,000 volts. A pale blue gas with a distant pungent
odour
Wavelength of Ultra Violet light
at 253.7 nanometers (nm)
Hot water tank temperatures
are elevated to greater than 70°C followed by a flushing of
all taps and showerheads with hot water at 60°C for at least
30 minutes for the technique to be effective
First
Use
Manufactured
by ProCare since 1983.
Used
by NASA since 1950
Known
and used for over 2000 years.
1896 as an experiment in Kentucky
1908 for the Municipal Water Treatment New
Jersey
Produced by Sir Humphrey Davey early last
century
Used for the treatment of drinking water
in France at the end of last century
Known to kill micro organisms for over 100
years. Increasing the temperature of hot water was the first
method to be used to control legionella in water distribution
systems
Biocide
Properties
These
metal alloys are very effective biocides. Copper is an excellent
algaecides and silver is an excellent bactericide / vericide
at very low concentrations. Copper from 0.2 to 0.4 ppm (parts
per million) and Silver at 0.02 to 0.04 ppm.
It is important to determine
the resistance of viruses, bacteria and cysts to chlorine
to set the correct dosage. It is now recognized that there
is a wide variation in the susceptibility of various pathogens
to chlorine
It is claimed to be at least
as effective as chlorine against E.coli after 30 minutes for
similar concentrations
In addition to its high germicidal
effectiveness, it has the added advantage of being able to
ameliorate odors, taste and color in water supplies
Most forms of viruses and bacteria
react to UV rays below wavelength of 300 nm. E.coli require
an exposure of 7000 microwatt seconds/cm² for destruction
Water temperatures greater than
60°C are inhibitory to legionella. Laboratory studies have
shown that the time required to reduce a population of legionella
by one log at 45°C, 50°C, 60°C, and 70°C was 2,500, 380, less
than 5 and less than 1 minute.
ProCare-LP™
Copper Silver
Ionisation
Cu+2/Ag+
Chlorine
Cl2
Chlorine
Dioxide
ClO2
Ozone
UV
Heat
Eradication
Legionella
Prevention and control
Chemical free with 25 to 45 days
for legionella control depending on the size of the system
Will not penetrate the biofilm and re-colonisation
will occur within a few weeks.
Controls yet must be generated on-site with
safety and handling protocols.
Does not stay dissolved in hot water systems.
Local treatment only. Will not treat biofilm.
Will not treat all distal points and has no residual effect
on Legionella.
Will not penetrated the biofilm at 100%.
Quick results depending on temperature. Re-colonisation within
a few weeks unless repeated continually.
Residuals
Has
long term residual effect on all of the water systems including
distal point and dead end pipes.
Deviates quickly. Not effective
at low levels
More stable than Chlorine
None
None, very localized application
In order to maintain effectiveness
the temperature needs to be maintained at 60°C at all outlets
otherwise recolonisation will occur
Logistics
No transportation
or storage problems
Transportation and storage problems
Transportation and storage problems
Cannot be stored or transported
because of short life
Fragile equipment
No transportation or storage
problems
Public
Image
Scientifically
and medically recognized as environment friendly to deliver
safely treated water.
A chemical threat tends to be
noteworthy whilst benefit is taken for granted
Similar to Chlorine.
More acceptable because it occurs
naturally in nature
Very acceptable as it is harmless
and non-chemical
Not energy efficient and environment
friendly
"It's about
Legionella Water Treatment Prevention...
...
it's about Peace of Mind"™
What
is it?
