Polyaluminium Chloride (PAC) has a wide range of applications, particularly in water treatment and purification processes. Here are some key applications:
1. Water Treatment : PAC is a highly effective coagulant used for treating drinking water, industrial process water, and wastewater. It helps remove turbidity, color, suspended solids, colloidal particles, organic matter, and microorganisms from the water by promoting flocculation and sedimentation.
2. Drinking Water Purification : In municipal water treatment plants, PAC is used to treat raw water sources, making it safe for human consumption. It's effective at removing contaminants that could affect taste, odor, or health.
3. Wastewater Treatment : In sewage and industrial wastewater treatment facilities, PAC is employed to neutralize charges on pollutants, leading to their aggregation and subsequent removal through sedimentation or filtration.
4. Swimming Pool Treatment : It can be used as an alternative to traditional chlorine treatments for swimming pool water clarification due to its ability to reduce turbidity and control algae growth.
5. Paper Manufacturing : In the paper industry, PAC serves as a sizing agent and a retention aid, improving the quality of paper products by controlling the flow properties of pulp fibers and enhancing filler retention.
6. Textile Processing : It is utilized in textile processing for dyeing and printing applications, aiding in the removal of excess dyes and chemicals from wastewater streams.
7. Oilfield Drilling Fluids : PAC is sometimes used in oil and gas drilling operations as a component of drilling mud, where it aids in controlling fluid loss into the formation and enhances wellbore stability.
8. Mining and Metallurgical Processes : It finds application in mining for settling out fine particulate matter and in metallurgy for waste water clarification and metal recovery.
9. Stormwater Runoff Treatment : PAC is also used to treat stormwater runoff to remove sediments and pollutants before discharge into natural water bodies.
The versatility of Poly aluminium chloride makes it a preferred choice across many industries due to its high efficiency, ease of use, and relatively low cost compared to other coagulants.
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