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Chemicals PAC - Water Treatment Chemicals

Chemicals PAC can use sewage water containing suspended solids such as industrial waste ceramics industry, brick, paper, stained, seafood processing plants, factories slaughtering, processing Using Chemicals PAC 1 m3 of waste water in 15-30 grams, depending on the concentration of suspended solids and nature of each type of waste water. Exact dosage must determine through testing directly with the object to be processed.

 Chemicals PAC is kind alum exists in polymeric form (polymeric). Molecular formula [Al2 (OH) nCl6-n] m. Currently, PAC was producing large quantities and widely used in developed countries to replace alum sulphate in water treatment and wastewater.

Chemicals PAC has several advantages compared to alum sulphate for coagulation sedimentation process. As effective deposition in 4-5 times higher, faster coagulation time, less do pH fluctuations of the water, do not need or use very little support, without the equipment and complex operation, not be lack or excess turbidity using alum. Chemicals Pacco ability to remove dissolved organic matter and insoluble heavy metal with better alum sulphate. This is particularly significant in the creation of high-quality water resources, including water treatment turbidity in the flood season water. Therefore, the developed countries are using Chemicals PAC in the water supply plant. There PAC PAC solid and liquid form. Solid is yellowish-white color powder, dissolve completely in water. Users only need to mix chemicals PAC dough into a 10% solution or 20% with water, the solution corresponding amounts flocculants in the water to be treated, stir and let stand. In normal storage conditions (enclosed, for dry, room temperature) can be stored for long. PAC liquid golden brown color, may bottled or plastic container for long-term preservation. Chemicals PAC dosage used for 1m3 river, pond, lake is 1 4g PAC for low turbidity water (50 to 400 mg / l), is 5-6 g Chemicals PAC for cloudy water medium (500 - 700 mg / l) and is 7- 10g Chemicals PAC for high turbidity water (800-1200 mg / l).

Exact dosage is determined by direct tests on the water to be treated. After settling in, if used for drinking water should boil or disinfect follow dosage instructions.

Chemicals PAC can use sewage water containing suspended solids such as industrial waste ceramics industry, brick, paper, stained, seafood processing plants, factories slaughtering, processing Using Chemicals PAC 1 m3 of waste water in 15-30 grams, depending on the concentration of suspended solids and nature of each type of waste water. Exact dosage must determine through testing directly with the object to be processed.

Advantages of Chemicals PAC
- PH high stability, easy processing pH adjustment thus conserving chemicals are used to increase alkalinity and the weather was accompanied as dosing pumps and chemical tanks than using alum.
- Reduce the volume of sludge when treating
- Increase in the water, prolonged filtration cycle, increase water quality after filtration
- The dose used is low, cotton residue to, easy to settle.
- Less corrosion of equipment.
- PAC works best at about pH = 6.5-8.5 Hence the PH in the heavy metal ions were precipitated and sink to the bottom or sticking to the colloidal particles to form.

Defect
- Since it has a very strong effect in low doses to work for the Chemicals PAC will make colloidal particles melt.
Manuals when using PAC
- Preparation of 5% -10% solution in water source philosophy to handle
- Surface water treatment Dosage: 1-10g / m3 PAC depending on the raw water turbidity.
- Waste Water Treatment Dose (paper mills, weaving, dyeing, ...) from 20-200g / m3 Chemicals PAC depending on the concentration of suspended matter and the nature of the waste water.
- Concentration of PAC defined standard practice for each type of water to be treated.