Achieving optimal water clarity and purity with Polyaluminium Chloride (PAC) requires precise application techniques. As a seasoned manufacturer and supplier of essential water treatment chemicals, we provide an in-depth guide to help you maximize the effectiveness of PAC in your operations. Understanding these best practices ensures you get the most out of your purchase.

Polyaluminium Chloride is a powerful inorganic polymer coagulant, but its performance is highly dependent on how it is applied. From preparation to dosing and storage, each step plays a crucial role. This guide covers the essential aspects of PAC usage, ensuring you can confidently implement it for superior water treatment outcomes.

Proper Preparation and Dilution

Solid PAC typically needs to be diluted into a solution before application. The recommended dilution ratio is usually between 2% and 20% by weight for solid products. When preparing the solution, it's best to use warm water and stir continuously until fully dissolved. It's important to note that the prepared PAC solution should ideally be used within 24 hours to maintain its efficacy. Purchasing pre-diluted liquid PAC from a specialized supplier can also streamline this process.

Controlling pH for Enhanced Coagulation

The coagulation effectiveness of PAC is significantly influenced by the pH of the water being treated. For acidic wastewater, alkaline substances may be needed to bring the pH into the optimal range for PAC to function effectively. Conversely, alkaline water may require the addition of acidic substances. Maintaining the correct pH ensures that the PAC can optimally neutralize charged particles and facilitate flocculation. Consulting with your PAC supplier for specific pH recommendations is always advisable.

Optimizing Mixing and Stirring

Once dosed, PAC needs to be thoroughly mixed with the water to ensure uniform distribution and contact with impurities. Proper mixing, often achieved through mechanical stirring or aeration, promotes the formation of larger, more stable flocs. A stirring time of 1-3 minutes at a speed of 10-35 r/min is generally recommended. Over-mixing can break down flocs, so finding the right balance is key.

Strategic Dosing and Storage

The specific dosage of PAC will depend on jar testing, which accounts for variations in water quality. However, typical dosages for solid PAC range from 1-15g/MT of water. When using PAC in conjunction with other treatment agents, always consider the dosing sequence, usually adding PAC first. For storage, keep PAC in a dry, cool, well-ventilated place, ensuring containers are sealed to prevent moisture absorption and caking. This ensures the product's longevity and consistent performance when you buy.

For reliable, high-quality Polyaluminium Chloride and expert application advice, partner with us. We are your trusted China supplier, ready to assist you in achieving the cleanest water possible.