For professionals in the water treatment industry, selecting the right coagulant is paramount to achieving efficient and cost-effective purification. Among the leading options are Aluminum Chlorohydrate (ACH) and Polyaluminum Chloride (PAC). While both are inorganic polymer aluminum salts used as flocculants, they possess distinct characteristics that dictate their suitability for specific applications. Understanding these differences is key for any procurement manager or R&D scientist seeking optimal solutions.

Aluminum Chlorohydrate (ACH) is recognized as the most concentrated form within the PAC family. It delivers the highest alumina (Al2O3) content and basicity, offering superior charge neutralization capabilities. This high concentration means that lower dosages are often required compared to traditional coagulants like alum or even standard PAC. Its chemical structure, characterized by a high degree of polymerization and a significant number of hydroxyl groups, contributes to its exceptional performance in floc formation. This is particularly advantageous in applications demanding the removal of very fine particles, turbidity, organic matter, and heavy metals. Many manufacturers highlight ACH's ability to perform effectively across a broad pH range, simplifying operational control and reducing the need for extensive pH adjustments.

Polyaluminum Chloride (PAC), on the other hand, is a widely used and versatile coagulant. It forms a high molecular polymer, [Al2(OH)nCl6-n]m, and is a staple in various treatment processes. PAC is known for its effectiveness in removing suspended solids, colloidal matter, and organic pollutants through robust coagulation. It is often used in conjunction with polymers like polyacrylamide (PAM) to enhance floc settling. While effective, standard PAC formulations generally have lower Al2O3 content and basicity compared to ACH. Consequently, higher dosages might be necessary to achieve comparable results, potentially leading to higher chemical consumption and increased sludge production.

The choice between ACH and PAC often hinges on specific treatment goals and water conditions. For applications requiring the highest possible aluminum concentration, superior charge neutralization, and reduced sludge generation, ACH is frequently the preferred choice. Its higher basicity also means it has less impact on water alkalinity, a critical factor in maintaining stable treatment processes. We, as a dedicated manufacturer and supplier of water treatment chemicals, ensure that our ACH products meet the highest standards of purity and performance. When you choose to buy ACH from us, you are investing in a premium coagulant that can lead to significant operational efficiencies and cost savings.

However, PAC remains a cost-effective and widely available option for many general water treatment needs. Its versatility in applications ranging from municipal drinking water to industrial wastewater and even papermaking makes it a go-to solution. The availability of various PAC grades allows formulators to select products tailored to specific challenges.

When considering your procurement needs, whether for drinking water purification, industrial wastewater treatment, or specialized applications like cosmetic ingredients and paper additives, evaluating the specifications of both ACH and PAC is crucial. Factors like water source characteristics, desired effluent quality, regulatory compliance, and cost-effectiveness should guide your decision. We are committed to providing high-quality chemicals and expert guidance to help you select the most appropriate product. Contact us today to discuss your specific requirements and explore our range of advanced coagulants. As a premier supplier, we are here to ensure you find the right solution to optimize your water treatment processes.