Raw Water Pump Activated Carbon Filter Sand Filter Dosa Micron Filter High Pressure Pump R.O. Membrane Various Instruments and Panel Box Typical Working Cycle Raw Water is fed to the raw water pump into the sand filter which removes suspended solids from water. The water then flows to the activated carbon filter for declarination. Anti-scalant is then dosed in water with the help of a doser to avoid scaling on membranes. Water is further passed to a micron cartridge filter for fine filtration. Water is then pumped by a high pressure pump into the R.O. Membranes. Water then passes to the membranes while most dissolved solids do not pass to the membrane. Water is then pumped into the membrane. This pure water which is achieved because of reverse osmosis is also called as permeate or product, which is used for various processes or can be stored in a storage tank to be used later. Part of the reject water is either recycled or can alternatively be reused. Instruments like pressure gauges, flow meters, conductivity sensors and level switches are provided for proper monitoring of the plant performance. A CIP system is provided for easy maintenance of membranes. The quantity type specifications and arrangement of membranes depends on the raw water parameters. Designs plants of various capacities with correct pretreatment options to suit specific water conditions.