Index >> Waste Water Microbiology >> Tertiary Treatment

Tertiary Treatment- This is designed to remove non-biodegradable organic pollutants and mineral nutrients, especially N2 and P salts. Activated carbon filters are normally used in their removal from secondary treated effluents.

To prevent eutrophication, phosphate is removed from sewage by precipitation as calcium, aluminium or iron phosphate. Breakpoint chlorina­tion is a process to remove NH3. In big cities, a highly advanced tertiary water treatment system integrates several of the tertiary treatment processes.