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Sodium
Aluminate Powder Vs Sodium Aluminate Liquor
Sodium
aluminate liquor PW Grade (PW = Potable Water)
Instructions
for use of liquor and replacement of powder
Sodium Aluminate liquor replaces the use of powder with cost savings in both
chemical and application areas some other advances are;
1. Health hazards due to dusting problems are eliminated. 2. Dissolving and
make up is eliminated reducing accident risk.
Specification
Sodium Aluminate Liquor PW Grade is manufactured to high standards of purity
and does not contain organic stabilizing agents. It is a potable grade for
drinking water and has been accepted by the British Water Research Association.
The Specification on chemical analysis and impurities is attached.
Dosing amounts powders or solution
The comparison of relative weights is as follows:-
|
|
WT required kg |
Volume litres |
Approx relative
cost |
|
Sodium Aluminate Powder |
1.00 |
Solid |
1.00 |
|
Sodium Aluminate Liquor |
2.20 |
1.09 |
0.80 |
Additional savings are made in capital cost for tanks and labour for make-up.
Concentration and dosing
SODIUM ALUMINATE LIQUOR SHOULD BE DOSED
OR USED DIRECT FROM THE DRUM
Diluted aluminate causes build up of alumina precipitation
in pipelines. The particularly applies to powders.
Dosing directly, for example, from drums using a pump eliminates such problems.
We advise the use of peristaltic pumps for discharge from 200 litre drums as;
1. Positive pumping is obtained. 2. if the tubing waers and breaks the pumping
action automatically ceases.
THE PUMP SHOULD BE PLACED ON THE DRUM OR
ABOVE THIS LEVEL.
Dosing using the concentrated liquor reduce pump size
requirements by at least 200%. Alumiante liquors made up from powders cannot be
made up to levels above 10% and this level causes difficulty.
EASY
DOSING ARRANGEMENT FOR LIQUOR
In stream mixing
FOR GREATEST EFFECT ENSURE RAPID OR FLASK
MIXING.
For
example - inject into highest water velocity point in a pipeline.