Jun . 28, 2024 12:40 Back to list

Aluminum Chloride Wastewater Treatment

Poly Aluminium Chloride in Wastewater Treatment An Effective Solution Introduction Wastewater treatment is a critical process that ensures the safety and well-being of both the environment and public health. One of the commonly used chemicals in wastewater treatment is poly aluminium chloride (PAC), which has proven to be highly effective in removing contaminants and improving water quality. This article will discuss the role of PAC in wastewater treatment and its various applications. What is Poly Aluminium Chloride? Poly aluminium chloride, also known as PACl, is a type of inorganic polymer compound that is widely used in water treatment, paper making, oil refining, and other industries. It is a white or light yellow granular solid that is soluble in water and can form a transparent viscous solution. PAC is composed of aluminum ions and hydroxide ions, which give it unique properties such as coagulation, flocculation, and adsorption. How does Poly Aluminium Chloride Work in Wastewater Treatment? The mechanism of action of PAC in wastewater treatment involves the formation of flocs, which are large aggregates of suspended particles that settle to the bottom of the treatment tank. The flocs capture and remove contaminants such as suspended solids, oils, and heavy metals from the wastewater. PAC works by neutralizing the negative charges on the surfaces of suspended particles, causing them to aggregate and form larger particles. These larger particles have a greater settling velocity and can be easily removed by gravity. Additionally, PAC can also adsorb organic compounds and other pollutants onto its surface, further enhancing its effectiveness in removing contaminants. Applications of Poly Aluminium Chloride in Wastewater Treatment PAC is widely used in various types of wastewater treatment processes, including 1. Primary treatment PAC can be used to remove suspended solids and settleable materials from raw wastewater, reducing the load on subsequent treatment stages Primary treatment PAC can be used to remove suspended solids and settleable materials from raw wastewater, reducing the load on subsequent treatment stages

Primary treatment PAC can be used to remove suspended solids and settleable materials from raw wastewater, reducing the load on subsequent treatment stages Primary treatment PAC can be used to remove suspended solids and settleable materials from raw wastewater, reducing the load on subsequent treatment stages

poly aluminium chloride in wastewater treatment. 2. Secondary treatment In this stage, PAC is often used in conjunction with biological processes such as activated sludge or biofilms to improve the removal of organic compounds and nutrients. 3. Tertiary treatment PAC can be used for polishing treatments to remove residual contaminants and meet strict discharge standards. It is particularly effective in removing color, turbidity, and trace organic compounds. 4. Industrial wastewater treatment PAC is widely used in the treatment of industrial wastewater from sources such as petrochemical, textile, and food processing industries. It can effectively remove oils, heavy metals, and other pollutants from these waste streams. Conclusion Poly aluminium chloride is a versatile and effective chemical reagent that plays a crucial role in wastewater treatment. Its ability to form stable flocs and remove a wide range of contaminants makes it an essential tool for improving water quality and protecting the environment. As regulations and public awareness continue to tighten, the use of PAC in wastewater treatment is likely to increase, further highlighting its importance in ensuring the sustainability of our water resources.

3. Uses of Polyacrylamide