Aluminium Chlorohydrate (ACH) liquid is widely used in water treatment due to its high efficiency as a coagulant and flocculant. Here’s a summary of its applications in this field:

1. Coagulation and Flocculation:

   • ACH liquid is used to treat both drinking water and wastewater by promoting the aggregation of fine particles (such as suspended solids, colloids, and organic matter). These particles form larger clumps (flocs) that can be easily removed through sedimentation, filtration, or flotation processes.
   • Its high cationic charge density allows for effective destabilization of suspended particles at lower doses compared to traditional coagulants like aluminum sulfate.

2. Turbidity and Color Removal:

   • ACH liquid is highly effective at reducing turbidity (cloudiness) and color from raw water by binding with dissolved and suspended organic substances, improving water clarity.
   • It is commonly used in surface water treatment plants to improve water quality for human consumption.

3. Phosphorus Removal:

   • In wastewater treatment, ACH liquid is efficient in removing phosphates, helping to prevent eutrophication in water bodies by limiting nutrient pollution. This is especially important in treating industrial and municipal wastewater.

4. pH Flexibility:

   • ACH liquid functions well over a broad pH range (typically between pH 4 to 9). This makes it versatile and effective in various water sources without the need for significant pH adjustment, reducing the need for additional chemicals.

5. Low Sludge Generation:

   • Compared to traditional coagulants like alum (aluminum sulfate), ACH liquid produces less sludge during the coagulation process. This results in reduced sludge handling and disposal costs for water treatment plants, improving operational efficiency.

6. Sludge Dewatering:

   • ACH liquid is also used to improve sludge dewatering efficiency in wastewater treatment, making the sludge easier to separate from water. This enhances the solid-liquid separation process and lowers the volume of water in the final sludge.

7. Corrosion Control:

   • ACH liquid is less corrosive than some other aluminum-based coagulants, which helps in minimizing equipment wear and extending the life of treatment systems and pipelines.

8. Efficient at Low Doses:

   • Due to its high charge density, ACH liquid requires lower dosage compared to traditional coagulants, leading to cost savings in chemical consumption while maintaining high water treatment performance.

In summary, ACH liquid is a highly effective coagulant in water and wastewater treatment, valued for its ability to improve water clarity, remove phosphorus, and reduce sludge production, all while operating efficiently across a wide pH range.