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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 | 0.0006 |
Polyaluminium Chloride, PAC, Water Treatment Chemical