water treatment chemical

Thiruvananthapuram: Kerala Water Authority (KWA) is preparing to replace aluminium sulphate (alum) with polyaluminium chloride (PACL) at the Aruvikkarai water treatment plant, citing an acute shortage of alum linked to disruptions in sulphuric acid supply, a key ingredient in alum manufacturing. Officials attribute the shortage to the ongoing conflict in the Middle East, which has…