(746h) Removal of Aluminium Ions in Drinking Water Using Bentonite in Egypt

Aluminum ions traces in drinking water have been detected in El Khanka Water Treatment plant in Egypt because of the lean sludge generated from the use of Alum in water treatment. Experimental investigation of using bentonite to remove aluminum salts from lean sludge was performed at different pH values. 98.8% removal of Al ions was achieved at pH 11, and 0.6 ppm concentration of bentonite in the sludge solution. Kinetic model of pseudo-second-order described the reaction accurately, and the rate constant was calculated at 11.922 mol.^-1 s^-1. An industrial process was designed to remove Aluminium ions from the drinking water in Egypt. Additionally, a brief economic estimate of applying the water treatment process was prepared.