The Effect Burnt Alum To Removing Turbidity From Water

AbstractThe research focuses on the use of ordinary and burnt alum to remove thelight turbidity (10 NTU) and reduces the medium ones (75NTU) by adding ofdifferent doses of ordinary alum Al2(SO4)3.16H2O and compare the results withthese obtained from the burned alum at varying temperatures (200, 300, 400, 500,600) C0.Jar test is used to find the change in the water characteristics of turbidity, pH, ECat the conditions. The study revealed that 10mg/l of burnt alum at 200Co and moregive, final turbidity of about (2NTU), while it gives NTU between (7-8) in thecase of using ordinal alum in removing of the light turbidity of (10NTU). In thecase of reduction of the medium turbidity it find that 10mg/l of burned alum at200Co reduces the final turbidity to about (3NTU).It appears also that the alum consumption is about 14% in case of using burntalum as compared with the ordinary alum especially in reducing of the mediumturbidity to 5NTU.key word (burnt alum, remove the light turbidity, Jar test)