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INSTRUCTIONS FOR USING POLY ALUMINIUM CHEMICALS (WATER TREATMENT SETTLING AID)

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  • INSTRUCTIONS FOR USING POLY ALUMINIUM CHEMICALS (WATER TREATMENT SETTLING AID)
By Basic ChemistryGuide

Poly Aluminum Chloride (PAC) is a popular coagulant in water treatment, thanks to its ability to effectively remove impurities, bacteria and heavy metals. Despite its popularity, the proper use of PAC still requires an understanding of the preparation process, dosage and safety precautions. In this article, we will provide detailed instructions to help you maximize the effectiveness of PAC, while ensuring the safety of the water treatment system and the working environment.

What is Poly Aluminum Chloride (PAC)?

What is PAC chemical?PAC (Poly Aluminum Chloride) is a highly effective coagulant, widely used in water supply, wastewater and sludge treatment. PAC works by creating large flocs, helping to remove suspended substances, bacteria and heavy metals, providing clean water that meets standards.

PAC products come in two common forms:

  • Liquid PAC: Easy to use, commonly used in automatic processing systems.
  • PAC powder: High efficiency, easy to maintain, suitable for many industrial wastewater treatment systems.

Outstanding Advantages of PAC

  • Outstanding coagulation efficiency: Removes impurities quickly, 4-5 times more effectively than aluminum sulfate alum.
  • Little effect on water pH: PAC does not cause large pH fluctuations, helping to reduce the need for pH adjustment chemicals.
  • Reduce sludge volume: Less sludge, easy to handle, saving operating costs.
  • Suitable for many water sources: From domestic water supply to complex industrial wastewater.
  • Easy to use: Dissolves quickly in water, convenient for modern systems.

PAC User Guide

PAC Preparation

  • PAC powder:
    • Prepare a 10–20% solution by dissolving PAC powder with clean water.
    • Stir well until PAC is completely dissolved before adding to the system.
  • Liquid PAC:
    • Use directly or dilute to 5-10% solution depending on treatment needs.

Recommended Dosage

  • Domestic water treatment:
    • Low turbidity water: 1–4 g PAC/m³.
    • Medium turbidity water: 5–7 g PAC/m³.
    • Highly turbid water: 7–10 g PAC/m³.
  • Industrial wastewater treatment:
    • Dosage ranges from 15–30 g PAC/m³, depending on the nature of the wastewater and the amount of suspended solids.

Doing

  1. Preparation of PAC solution:
    • Dissolve PAC powder or PAC liquid in the appropriate ratio.
  2. Add PAC to the water to be treated:
    • Add PAC solution into the system, use stirring equipment to disperse the chemicals evenly.
  3. Sedimentation and filtration process:
    • After adding PAC, let the flocs settle to the bottom, then filter to remove the residue.

Notes When Using PAC

Determine the Correct Dosage

  • Amount PAC flocculant should be determined based on actual testing to achieve optimal efficiency, avoiding overdose causing waste or reducing treatment efficiency.

pH Adjustment

  • PAC works best in the pH range of 6.5–8.5. If the water pH is not in this range, it needs to be adjusted before adding PAC.

Using Combined Flocculants

  • For complex wastewater, combining PAC with Cationic Polymer (CPAM) or Anionic Polymer (APAM) will increase the coagulation and sedimentation efficiency.

Safety When Using PAC

Labor Protection

  • Always use gloves, goggles and mask when handling PAC to avoid direct contact with the chemical.

Handling on Contact

  • Skin or eyes: If chemical comes into contact with skin or eyes, rinse immediately with clean water for at least 15 minutes.
  • Inhalation: Leave the area, move to fresh air, and contact a doctor if symptoms persist.

Preserve

  • Store PAC in a cool, dry place, away from direct sunlight and high temperatures.
  • Close the packaging after use to avoid moisture and reduce product quality.

Why Choose PAC At Loc Thien?

  • High Quality: PAC at Loc Thien meets international standards, ensuring optimal treatment efficiency.
  • Product variety: Providing both liquid and powder PAC, suitable for many water treatment systems.
  • Professional service: Experienced technical team is ready to support and provide free consultation.
  • Competitive price: Optimize costs for customers while still ensuring product quality.

Contact For Advice And Quote

For detailed advice and the most suitable PAC quote, please contact:

Conclude

PAC chemicals are an effective, economical and system-friendly water treatment solution. Compliance with the instructions for use and safety precautions will help you achieve the best results, optimize costs and improve the quality of treated water. Loc Thien is proud to accompany you in providing clean and safe water!

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