Why Aluminium Chlorohydrate (ACH) Is the Preferred Coagulant – FAQs Answered

Aluminium chlorohydrate (ACH) is increasingly replacing conventional coagulants like alum in industrial and municipal water treatment. Here are key questions we often received from plant engineers:
🔹 Why is ACH preferred over alum?
ACH has higher basicity, works across a wider pH range, produces less sludge, and leaves lower residual aluminium — resulting in better clarification and lower operating costs.
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