PAC-Polyaluminium, Water Treatment Chemical

Use

1) purification of urban water supply and drainage

2) industrial water purification and treatment, including the printing and dyeing wastewater, paper-making wastewater, etc.

3) recycling of the useful material in the industrial waste water and residual

4) strengthening the settlement of powdered coal in the coal-washing wastewater

Usage

1) The dosage depends on the waster water to be treated. Generally, the dosage in the water purification is as follows: 5-100 g / ton for the liquid PAC and 20 - 25 kg / ton for the solid PAC (in terms of goods). The dosage can be decided by the jar test.

2) The preparation can be directly added into the water which is decided by the amount of PAC and water to be treated. And the mixture should be stirred evenly. 

 

Index name	First grade product
	Liquid	Solid
Relative density(200C)≥	1.18-1.21
Al2O3% ≥	10.0	29.0
Alkalinity%	60-85	60-85
Water-insoluble% ≤	.0.2	0.6
pH(1% aqueous solution) ≤	3.5-5.0	3.5-5.0
Sulfate radical(SO42-)% ≤	3.5	9.8
Ammonia nitrogen(N)% ≤	0.03	0.09
Arsenic(As) % ≤	0.0002	0.0005
Manganese(Mn)% ≤	0.0075	0.0015
Chromium(Cr42-)% ≤	0.0005	0.0015
Mercury (Hg) % ≤	0.00002	0.00002
Lead(Pb) % ≤	0.001	0.003
Cadmium(Cd) % ≤	0.0002	0.00