Polyaluminium Chloride Technology
Polyaluminium chloride (PAC) is increasingly used
for water treatment. Against the conventional use of aluminium sulphate (alum) it is
showing distinct advantages.
ENCO ENGINEERING in co-operation with a European licensor is now in a position to offer plants for the production of polyaluminium chloride, with an up-to-date, efficient technology.
The production process for polyaluminium chloride is including the following reaction steps:
Depending on reaction conditions products with different characteristics are obtained. For the production of polyaluminium chloride 9% special auxiliaries and catalysts are used.
PROCESS HIGHLIGHTSThe proposed improved PAC process is giving the following advantages against a conventional process:
TYPICAL PLANT SIZEA typical plant capacity for a polyaluminium chloride production plant is 30'000 tons per annum.
PRODUCT CHARACTERISTICS AND APPLICATIONSPolyaluminium chlorides are synthetic polymers dissolved in water. They react to form insoluble aluminium poly-hydroxides which precipitate in big volumetric flocs.The flocs absorb suspended pollutants in the water which are precipitated with the PAC and can together be easily removed.
PAC can be used as a flocculant for all types of water treatment treatment, drinking water, industrial waste water, urban waste water and in the paper industry.The possible slightly higher unit price of PAC is compensated by a
Applications: PAC 18%Al2O3 can be used for most applications. Polyaluminium chloride 9% Al2O3
Applications: PAC 9% Al2O3 high basicity is mostly used for drinking water treatment. With its use no polyelectrolytes, fungicides etc. will be required for the treatment.
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