Membrane Processes in Treatment of Drinking Water
The membrane processes have been in use for industrial or pharmaceutical applications, and now being applied to the treatment of drinking water
These do not provide residual disinfection hence a need to add small amount of persistent disinfectant like chlorine as a preservative during distribution.
The pore size of the membrane is smallest in RO and is in the following order:
RO < Nano filter < Ultra filter < Micro filter
The membrane processes of most significance in water treatment are:
High Pressure Processes
Reverse Osmosis