Water is the source of life, we can not live without water, however, due to human overdevelopment and pollution of water resources, many areas are facing serious water shortage and water quality decline. To solve these problems, many scientists and engineers devote themselves to research and development of water treatment technologies. Among them, Polyaluminum Chloride(PAC), as an important water treatment agent, is widely used in the field of water purification and sewage treatment.
Function
The action of PAC is accomplished through four aspects of its or its hydrolysis product's compressed bilayer, electrical neutralization, tape web trapping, and adsorption bridging.
It precipitates and filters out the particulate matter that can be oxidized by the oxidizer to cause COD, thus reducing COD, and the precipitation of particulate matter.PAC is a safe, environmentally friendly, and effective wastewater treatment product. It can not only effectively reduce the concentration of organic matter, minerals and microorganisms in the sewage, but also can reduce the chromaticity and turbidity of sewage, effectively reduce pollution, improve the smell of sewage, reduce the acidity and alkalinity of sewage, so as to effectively improve the pollution of sewage. PAC is an effective additive for sewage treatment, which has an important role in sewage treatment.
Characteristics
PAC is an inorganic polymer coagulant. It can destabilize fine suspended particles and colloidal ions in water, aggregate, flocculate, coagulate and precipitate through compression of double layer, adsorption and electric neutralization, adsorption and bridging, and precipitate net catching, etc, so as to achieve purification and treatment effect.Compared with other coagulants, PAC has the following advantages: It has wide range of applications and adapt to a wide range of water.It is easy to form large alum flower quickly and has good precipitation performance. It has wide range of suitable PH value (5-9), and the PH value and alkalinity of treated water are small. When the water temperature is low, it can still maintain stable precipitation effect. Its alkalinity is higher than other aluminum and iron salts, and it has little erosion effect on equipment.
Application
PAC is a new-type inorganic macromolecule coagulant with high efficiency. It is widely used in the drinking water, industrial water purification, industrial effluent municipal sewage treatment.It can lead to quick formation of flock with big size and rapid precipitation. It has wide-range adaptability to the waters at different temperatures and a good solubility. PAC is slightly corrosive and suitable for the automatic dosing and convenient for operation.
Conclusion
PAC is an important coagulant in the field of water purification. It has efficient purification effect on low temperature, low turbidity and high turbidity water. However, since its monomer reacts with organic matter to generate substances that are hazardous to human health, it is important to ensure the purity of PAC in water purification.
Roxy
Mobile Phone:+8618901531587
E-mail:roxy.wu@lansenchem.com.cn
Post time: Feb-24-2024