EFFECTIVELY REMOVING HALO - ACETIC ACIDS FROM WATER BY BIO - ACTIVATED CARBON METHOD

This study focused an effective method of bio - activated carbons to treat excess amounts of halo - acetic acids (HAAs) in raw water in a water treatment plant. Experiments were conducted in pilot scale treatment system to evaluate the removal of HAAs in water by bio - activated carbons. HAAs have been thought to be one possible nutrient supporting h eterotrophic bacteria regrowth in drinking water. The results showed that pilot scale treatment system reduced over 85% of HAAs under normal conditions. The output water treated by pilot scale treatment system showed increased removal of HAAs and total org anic carbon with increased alkalization of bio - activated carbons.