ProMinent Australia Head Office - Sydney Unit 4, 4 Narabang Way BELROSE NSW 2085 PO Box 85, BELROSE WEST NSW 2085 Ph: (02) 9450 0995 Fax: (02) 9450 0996 Fax (02) 9450 0994 - for orders Email:[email protected]Website: www.prominentfluid.com.au ProMinent Melbourne Office 1/21-22 National Drive HALLAM VIC 3803 Ph: (03) 8795 7430 Fax: (03) 8795 7431 Email: [email protected]ProMinent Brisbane Office 1/68 Murdoch Circuit ACACIA RIDGE QLD 4110 PO Box 6024 Upper Mt Gravatt QLD 4122 (07) 3213 1900 Fax: (07) 3272 0445 Email: [email protected]Fluoride by ProMinent May 2016
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ProMinent Fluoridation Aprominentfluid.com/uploads/Presentations/ProMinent Fluoridation.pdf · Fluoridation of drinking water remains the most significant dental health program in
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Fluoridation of drinking water remains the most significant
dental health program in New South Wales and Australia.
The advantage of water fluoridation is that the entire
community benefits from the preventative measure, regardless
of age, socio-economic level, educational achievement,
individual motivation, or the availability of dentists.
Fluoride packages and installations have to meet strict guide
lines. In New South Wales where ProMinent Australia have
supplied more than 70 systems, there is a fluoride code, ‘Code
of Practice for the fluoridation of Water Supplies Act 1957‘ This
code was published by the Oral Health Branch of the Dept of
Health and revised in August 2002.
This code has also been accepted by other Australian states
as the bench mark for fluoride installations.
Fluoridation
TYPES of FLUORIDE
Fluoride is available commercially in 3 different ways, 2 are powders the other a
liquid. Each display different concentrations of available fluoride ions & solubility
Powders
Sodium fluoride (NaF) - most expensive, 44% by weight available fluoride ion
(solubility is 4.0%)
Sodium Silicofluoride (Na2SiF6) - 60% by weight available fluoride ion (solubility
0.4%, nominal design solution strength 0.2%)
Liquid
Hydrofluosilicic acid (H2SiF6) - liquid – up to 29% by weight available fluoride
ion
Some of the Fluoride Packages ProMinent can offer
Saturator 5kg
Container
Saturator
Vacuum load of
25 kg bags
Sodium Silicofluoride Vacuum load Crane & hoist bulk bag unloader Vacuum bulk bag unloader
Sodium Fluoride Saturators
With ProMinent 5kg or vacuum load saturators, we offer both down flow with
filter media and up flow with external filters.
Sodium fluoride has a reliable saturation solubility of 4%.
Excess sodium fluoride powder is placed in a dissolving tank and the
constant 4 % solution of sodium fluoride produced is dosed into the
water supply in proportion to the mains mag flow meter milliamp signal.
The ProMinent metering pump is set to display the total amount dosed.
This is to be compared daily against the total water flow to ensure
correct dosing has taken place. The metering pump has a monitor to
detect if the dosing has stopped and alarm accordingly.
5kg Saturators
ProMinent’s 5-250 sodium
fluoride saturator was
designed for small water
supplies up to around 2
Ml/day, but can be used for
much larger plants than this.
Featuring patented
container cutter, loader
& water flushing device
5kg saturator in a portable shed
ProMinent organised the supply of sodium
fluoride granules in a 5 kg screw-top, foil-
sealed plastic containers.
To ensure easy and dust free unloading of
this sodium fluoride container, ProMinent
designed and patented a special loader to
accept the container, slice the seal, and
allow the powder to dump into the
saturator tank.
Then by the push of a button the container
can be flushed with clean water to allow
the jar to be easily disposed of in the
normal plastic recycling.
Loading of the 5kg jars of sodium fluoride powder
Firstly remove the screw top cap from the 5 kg fluoride container.
Check the security of the container seal. Remove the delivery
protection cap from the container unloader. Invert the 5 kg container
and screw clockwise into the unloader until it seats.
Remove the black positioning plug stop. Holding the red handle,
rotate the top of the loader with the container attached, in an
anticlockwise direction.
As it rotates the container seal will be cut to allow the contents to fall
into the saturator solution tank below. About 10% of the seal will
remain intact to prevent it from also from falling into the tank.
Now that the container is empty, hold the water flush button. This
opens a water flush line to wash the inside of the bottles. Slowly
rotate the red handle backwards and forwards to flush clean the
bottle. When the bottle is clean return the red handle to the start
position.
Replace the black positioning stop to prevent holder
rotating while unscrewing the bottle.
If no further containers are to be unloaded, either leave the
flushed container in place until the next unloading of
chemical is required or replace the attached cover.
To install more containers, remove the empty clean
container for disposal with your plastic recycling. Load up a
new container as described above.
When flushing the containers, if one flush was not sufficient
to clean the insides of the container, repeat the flush cycle
again while rotating the container.
While ever the minimum NaF bed depth of 150 mm is
maintained (requirement from NSW fluoride act) a 4%
sodium fluoride solution will be available for dosing into the
water supply in proportion to the mains 4-20 mA mag flow
signal.
Down flow saturators
Setting a down flow Saturator in Operation
To set a down flow saturator in operation fill the saturator tank
with 2 courses of media sand (see media depth diagram)
Fill the saturator tank with water allowing space for powder to
be added.
Prime the dosing pump (as detailed in the enclosed pump
manual). Calibrate the pump to the flow signal so as to give a
dosing rate of 1 mg/litre when pump stroke is on 95% and code
lock the pump. (Variations to 1 mg/litre will apply in some hotter
locations or where there is a higher than normal natural fluoride
levels in the water.
Due to the toxic nature of the fluoride solution, ProMinent
recommends that the above steps be carried out without the
presence of fluoride. Fluoride can be added when the system is
calibrated, tested and ready to set into service.
The raw water enters the tank
through a lateral pipe system that sits
under the undissolved sodium fluoride
powder. The water passes through
the fluoride and becomes saturated to
4%.
Sodium fluoride (supplied in 5kg
screw-top sealed plastic containers)
is added to the saturator tank via the
bottle cutter.
Up flow saturator
A saturated solution is reached
when there is un-dissolved granules
present inside the tank. NSW
regulations require a minimum depth
of 250mm of un-dissolved granules
at all times for an up flow saturator.
The saturated solution is drawn from
the saturator tank from a baffled
outlet. It is drawn through 2 inline
cartridge filters to prevent
undissolved fluoride particles being
metered into the water supply.
For water supplies up to10 Ml/day
ProMinent Fluid Controls have a
sodium fluoride saturator with a
vacuum loader for unloading sodium
fluoride granules from 25 kg bags.
.
Saturator with vacuum loader for 25 kg bags
The vacuum loader especially designed for fluoride, is
mounted on the saturator and comes complete with dust
extractor, suction wand and a flexible hose. The
ProMinent vacuum loader is suitable for both the sodium
silicofluoride packages and the sodium fluoride
saturators.
The vacuum loader operates as follows:As the powder enters the collection unit, the large volume inside the unit causes the air velocity to drop, allowing the powder to fall to the bottom of the unit.
The air is then drawn upwards, through a filter to remove any powder particles that are still airborne, before leaving the unit via the vacuum motor.
The vacuum wand is constructed from two different diameter
stainless steel tubes. The larger is used to transfer the powder
from the bag to the filtration unit via the vacuum hose. The
smaller allows air to be mixed with the product for efficient
transfer.
Vacuum LoaderWith the vacuum loader switched on, the wand
is inserted into the container or open bag. The
vacuum motor will operate for 40 seconds (or
longer) before stopping.
At this point, the inlet valve will close, and the