Polyaluminium Chloride

I.  Polyaluminium Chloride

 

Poly Aluminium chloride abbreviation form “PAC ;is extensively used as an industrial coagulant and Flocculent in different industries. Different grades of PAC are available for different purposes. These are basically two grades…..

(1) PAC- Basic Aluminium Chloride
(2) PAC- Poly Aluminium Chloride

PAC products are used in water treatment for removal of suspended solid (Turbidity) and other contaminants such as natural organic matter from surface water, Micro - organisms and colloidal particles, silt and clay are stabilized by surface electrostatic charges preventing the particles from coalescing. It is advantageous in water of low to moderate turbidity, possibly because of the greater charge neutralizing capacity relative to alum.

Chemical  Formula : AL2(OH)NCL6-NLm ; “m” stands for extent of polymerization, “n” means extent of PAC neutral.

 

II.  Application Method:

 

In order to get optimum flocculation effect and lowest cost, you can determine the optimum input through tests according to different raw water turbidity, change of seasons, and pond shape.Liquid products should be mixed to be 5~10% aqueous solution; Solid products should be mixed to be 3~5% aqueous solution. The higher turbidity of the raw water, the thinner solution is mixed .Thus you can improve the product input ,get better flocculation effect.

III.             Packing & Stockpile :

 

plastic bag inside lining, Plastic membrane knitting bag of outer layer. 25kg/bag.

 

IV.  PAC Specifications (GB 15892-2003 Standard)

 

Name

Type

Drinking water

Non-drinking water

liquid

solid

liquid

solid

excellent

First grade

excellent

First grade

Alumina(AL2O3)/%≥

10.0

10.0

30.0

28.0

10.0

27.0

Basicity  %

40-85

40-85

40-90

40-90

40-90

40-90

Density(20)/(g/cm3) ≥

1.15

1.15

-

-

1.15

-

Water insoluble substance /%≤

0.1

0.3

0.3

1.0

0.5

1.5

PH(1% aqueous solution)

3.5-5.0

3.5-5.0

3.5-5.0

3.5-5.0

3.5-5.0

3.5-5.0

Ammoniacal nitrogen(N)%≤

0.01

0.01

 

As %

0.0001

0.0002

Pb %

0.0005

0.001

Cd %

0.0001

0.0002

Hg %

0.00001

0.00001

Cr6+ %

0.0005

0.0005

 

 

 

 

 

 

 

 

 
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