Polyaluminium Chloride (PAC)

Polyaluminium Chloride (PAC) is often referred to as the basic aluminium chloride or coagulant, it is between AlCl3 and Al(OH) 3 between a water soluble inorganic polymer.
 
Application of PAC:
1. City water supply and drainage purification, such as river, reservoir water and groundwater.
2. Industrial water purification.
3. City sewage treatment.
  • Product description
  • Product Parameter

Product Introduction:

Polyaluminium Chloride (PAC) is often referred to as the basic aluminium chloride or coagulant, it is between AlCl3 and Al(OH) 3 between a water soluble inorganic polymer, the product has a strong bridge adsorption performance, during the hydrolysis process, accompanied by condensation, adsorption and precipitation and other physical and chemical processes.


Characteristics of PAC:

PAC English Name: Polyaluminium Chloride, abbreviated as PAC, the appearance of the product is golden yellow, yellow, brown and red granules.


Application of PAC:

1. City water supply and drainage purification, such as river, reservoir water and groundwater.
2. Industrial water purification.
3. City sewage treatment.
4. Useful material recovery in industrial wastewater and waste residue; promote the settlement of pulverized coal in coal washing wastewater; recovery of starch in manufacture process.
5. All kinds of industrial wastewater treatment, such as dyeing wastewater, leather fluoride wastewater, heavy metal wastewater, oily wastewater, papermaking wastewater, wastewater treatment, mining wastewater, brewing wastewater, metallurgical wastewater and meat processing wastewater etc.
6. Wastewater treatment.
7. Paper-making sizing, sugar refining, casting, medicine refining, cement quick setting and cosmetics raw materials etc.


Concentration Ratio Method:
 
Step 1, according to the situation of raw water, a small test should be taken to get the optimal dose of PAC. The configuration of tested liquor is generally 2% to 5% on the basis of weight ratio (W / W). If a 3% solution is needed, you should pour 3g of solid PAC into a 200ml graduated cylinder, and add some water about 50ml waiting to be dissolved. The next step is to add water again to 100ml mark and shake well.
 
Step 2, the production of PAC should be mixed and dissolved according to the weight ratio of solid PAC and water which is 1: 9 to 1:15. Liquor with Alumina content below 1% is easy to be hydrolyzed, and the using effect will reduce. In contrast, the high concentration is not easy to achieve dosing uniformly.
 
Step 3, dosing should accord with the best dosage got from the small test. For example, if the tank of sedimentation appears less alum floc and high residual turbidity, the dosage is too small; On the contrary, If the tank of sedimentation appears up-floating large alum floc and high residual turbidity, excessive dosing should be adjusted appropriately.

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