Aluminium Chlorohydrate (ACH) powder is commonly used in water treatment due to its excellent coagulation and flocculation properties. Here's a summary of its primary applications in this field:

1. Coagulation and Flocculation:

   • ACH powder is used to aggregate fine particles (such as suspended solids, colloidal matter, and organic pollutants) in both drinking water and wastewater treatment processes. These particles form larger flocs, which can be easily removed by sedimentation, filtration, or flotation.
   • It has a high cationic charge density, making it more efficient than traditional coagulants (e.g., alum) and effective at lower dosages.

2. Turbidity and Color Reduction:

   • ACH powder helps in reducing turbidity (cloudiness) and color from water sources by binding with suspended and dissolved organic material. This results in clearer, cleaner water, which is important in both potable water and wastewater systems.

3. Phosphorus Removal:

   • In wastewater treatment, ACH powder is effective at removing phosphates, which helps control nutrient pollution and prevent eutrophication in lakes, rivers, and other water bodies. This is particularly important for industrial and municipal wastewater treatment plants.

4. Broad pH Range:

   • ACH powder works effectively across a wide pH range (typically pH 4 to 9), allowing it to be used in a variety of water sources without needing significant pH adjustments. This reduces the need for additional chemicals, making it more cost-effective.

5. Low Sludge Generation:

   • One of the advantages of using ACH powder is that it generates less sludge compared to traditional coagulants like aluminum sulfate (alum). This reduces sludge handling and disposal costs, improving overall operational efficiency.

6. Sludge Dewatering:

   • ACH powder is used to improve sludge dewatering by enhancing solid-liquid separation. It reduces the water content in the sludge, making it easier to handle and less expensive to dispose of, especially in municipal and industrial wastewater treatment plants.

7. Reduced Corrosion:

   • ACH powder is less corrosive than other aluminum-based coagulants, which helps protect treatment equipment and pipelines from wear, reducing maintenance and extending the lifespan of infrastructure.

8. Cost-Effective Dosing:

   • Due to its higher charge density and efficiency, ACH powder requires lower dosages than other coagulants to achieve the same or better performance. This leads to savings in chemical consumption and operational costs.

9. Storage and Transport Benefits:

   • As a dry product, ACH powder is easier to store and transport compared to its liquid counterpart. It also has a longer shelf life, reducing storage costs and the need for refrigeration or special handling.

• Primary coagulant in water treatment plants
• Effective in removing heavy metals and phosphates
• Used in cosmetic and resin manufacturing
• Common ingredient in antiperspirants

• Eco-friendly alternative to traditional PAC
• Less product needed for treatment
• Forms large, settle-able flocs swiftly
• Excellently adaptable, with great solubility and efficiency across various temperatures

Primary coagulant in water treatment plans

Effective in removing heavy metals and phosphates

Used in cosmetic and resin manufacturing

Common ingredient in antiperspirants

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