PAC

PAC is a substance with many different applications:

1. Treatment of drinking water and urban wastewater
2. Factory wastewater treatment
3. Applicable in the manufacturing industries (such as the textile industry and pulp and paper industry). It must be noted that the use of PAC in the pulp and paper industry has been successful since the 70s.

Application of Poly Aluminum Chloride in the Treatment of Drinking Water

The use of PAC in the process of drinking water production has taken precedence over the use of Aluminum Sulfate as coagulate in technical and economic terms. But why this substance is more popular than Aluminum Sulfate? The use of PAC as a coagulant will not result in the production of any organic material in the water. The amount of PAC use is reduced to almost 30 to 60% resulting in less sludge in the water in comparison to Aluminum Sulfate. In most treatment plants, the use of chlorine for water treatment is prevalent since it was proven to be effective in fighting viruses and bacteria. However, the possibility of cancer due to the elevated sodium levels by using chloride is increased. It must be noted that using PAC as a coagulate will result in less chlorine. It was also proven that PAC is effective in the improvement of water quality.

PAC usage in Pulp & Paper Industry

Decreased need for natural fiber in the paper production Increased rate of excess water exit in the paper. In this way, the drying rate will be increased Mechanical strength and stability of produced papers will be increased

PAC  Application in Textile Industry

In the textile industry, PAC is used as a removing factor of wastewater and pollutant. In other words, PAC is effective in the treatment of industrial textile wastewater.

Poly Aluminum Chloride usage in Food Industry

In general, PAC is the most commonly used coagulant, substitute to the aluminum sulfate. In the food industry, it is mainly used to purify wastewater. In addition, the PAC is applicable in starch production. The high performance of this substance in the separation of water from starch has been proven.

PAC storage

Manufactures of the PAC believe that the following conditions are mandatory to store PAC – It must be kept out of the sunlight range – The temperature recommended is somewhere between 40^oC < T < 50 ^o In these conditions, the life of this PAC will be 4 to 5 months which is ideal for storing in the treatment plants. – It must be noted that the performance of the PAC will gradually decrease for keeping too long under the above-mentioned temperature. – For storing this substance, always remember that pipelines must be built out of materials that are corrosion resistant. Unfortunately, most of the metals can be easily corroded by Poly Aluminum Chloride. The most ideal materials for PAC containers can be fiberglass and polyethylene.