Professional Guide to Selecting Polyaluminum Chloride for Water Treatment Plants

Polyaluminum chloride commonly used in wastewater treatment plants typically has a concentration between 20-26%. While these products offer cost-effectiveness due to their low price, they contain higher levels of impurities and may exceed heavy metal limits. Consequently, they are only suitable for industrial wastewater treatment and are strictly prohibited for use in drinking water or groundwater purification. So, how should water treatment plants select the appropriate polyaluminum chloride? Tap water typically exhibits lower levels of contamination, primarily containing small amounts of suspended solids such as silt and sand. Consequently, stricter quality standards are required for the polyaluminum chloride used in its treatment. For tap water purification, high-purity polyaluminum chloride is more suitable, requiring an aluminum oxide content of at least 28%. Such products not only feature high aluminum oxide content but also contain virtually no substances harmful to human health. Heavy metal indicators are strictly controlled within safe limits, delivering significant purification effects for both tap water and groundwater. Additionally, there is a white polyaluminum chloride produced using aluminum hydroxide as raw material, known as food-grade polyaluminum chloride. Its aluminum content can exceed 30%, making it an ideal choice for drinking water treatment. However, due to higher production costs, its market price is relatively expensive. For water treatment plants, selection should be based on actual water quality requirements. In principle, as long as the polyaluminum chloride content is no less than 28%, it can meet the basic requirements for tap water treatment. Key Conclusion: Polyaluminum chloride can be categorized into industrial-grade and food-grade based on its application. From a safety perspective, it is recommended that water treatment plants prioritize the use of food-grade products to ensure the safety and reliability of drinking water treatment. The main products of flocculant manufacturer Xinhuan Water Treatment are: White polyaluminium chloride (food grade), drinking grade polyaluminium chloride, industrial grade polyaluminium chloride, anionic polyacrylamide, cationic polyacrylamide, nonionic polyacrylamide, petroleum recycling polyacrylamide, oil recovery polyacrylamide, polyacrylamide, polymer flocculant polymer flocculation coagulant, polymeric ferrous sulphate, polymerized iron and aluminium chloride, and other water treatment chemicals. Welcome customers to write to us to negotiate business! Tel/WhatsApp：86 19139972558 Email：Sunny@xhwtm.com Contact:Sunny