Poly Aluminium Chloride, abbreviated as PAC, is divided into three main categories by production process, alumina content and appearance to suit various water treatment scenarios.
1.Drum-dried Type (Yellowish-brown / Khaki Solid) Production process: Traditional drum drying; alumina content 26%-28% with slightly higher impurities. Application: Municipal domestic sewage, coal washing, printing and dyeing, and general industrial wastewater treatment. Low-cost, the top choice for large-scale projects.
2.Spray-dried Type (Light Yellow / White Fine Powder) Process: High-pressure atomization spray drying, featuring high purity, excellent water solubility and minimal insoluble matter.
- Yellow spray PAC: 28%-30% alumina content, widely used for high-standard industrial wastewater.
- White high-purity PAC: Over 30% alumina with extremely low heavy metal content, specially for waterworks, food processing water and pharmaceutical water purification.
3.Liquid Poly Aluminium Chloride No dissolution required; the stock solution can be dosed directly with around 10% effective content. Easy to operate, suitable for sewage treatment plants with short transportation distance.
