Water should be collected from the source which should be well protected, available easily, un-contaminated. Sources can be anything viz. bore well water Line, Closed Ring Well, Municipal Supply Line or Other source where treatment is possible.
Water is transferred to Raw Water Storage Tanks using proper pumping system and un-contaminating piping work. Either Submersible Pump or surface mounted Centrifugal pump can be used with good quality UPVC or CPVC or SS piping can be used for this application.
Water is passed through following different stages for process of filtration & separation in packaged drinking water plant process.
To pump raw water at required pressure so as to enable transfer through the RO Pre - Treatment stage.
By means of Multi size Graded sand filled in the Vessel of stainless steel material, which is natural process of filtration adopted by the nature Raw Water is first filtered by filtration unit in series prior feeding RO Plant. Pressure Sand Filter Unit is provided for removal of suspended matters & turbidity from raw water. PSF Unit is a SS vertical Pressure Vessel. Internally, it is fitted with bottom collecting system. Uniform grades silica quartz sand is charged on the supporting media of pebbles and gravels.
To remove taste, odour, chlorine, colour and. It can absorb contaminated particles of Oil & Grease from the raw water. It will control the BOD & COD in the raw water.
Activated Carbon can remove Chlorine, Odour, & Colour other organic material from feed water prior to reverse osmosis. This Carbon granules having larger surface area and specific property to absorb organics.
To protect the membrane and the high pressure pump from suspended particles by removing them up to 5 Micron
For Reverse Osmosis Process to take place feed pressure of water need to be raised. For this purpose a Vertical Multistage Centrifugal High Pressure Pump in S.S construction is provided R.O. System requires operating pressure of about 14-16 kg/cm^2 . High-pressure pump is fitted with S.S. discharge pipe work with necessary control valves. Necessary instruments like a High Pressure Switch, Pressure Gauge and recirculation valves are provided for safer operation of system
The hardness salts of calcium & magnesium are likely to be precipitated if concentration exceeds its solubility limit & it may faults the membranes resulting into scaling which ultimately leads to poor treated water quality from R.O.System.
To reduce Raw Water T.D.S. through the concept of Reverse Osmosis where R.O. Modules processes Raw Water and produces Purified Water having the Salt Rejection of Raw Water in the range of 90 – 95%.
By using Semi permeable Membrane filter elements, where ion filtration process is carried out by applying pressure in the water.
So finally we will get Low salt water with low total dissolve solids and High purity.
Here will have to drain the water at one side to Wash the Membrane filter elements continuously because of filtration process there is nothing to be polluted in the system.
Feed & Reject Pressure Gauge to indicate respective pressure of R.O.System.
Feed & Reject Flow Indicator to indicate respective flow of R.O.System.
T.D.S Meter to measure TDS of Raw & Treated water.
High Pressure Switch for tripping high pressure pump in case of excessive feed pressure of R.O.System.
To store Reverse Osmosis permeate (product) water.
It can remove back pressure in R.O. Membrane elements.
It is only storage of the treated Water.
To feed water to downstream to micron filters and UV system and filling line
During storage, atmospheric or any other contamination may take place in treated water. Hence, after passing water from R.O. System, water is once again passed through a micron cartridge filter. To remove micron particles up to 2.0 Micron sizes.
This Vessel fitted internally with P.P spun micron cartridge elements having absolute ratings of 1.0 micron & 0.2 microns which removes all bacterial impurities present in the water and make the water free of particulates
For removal of micro biological organisms up to 99.9%
Though R.O. System rejects all the micro – organisms like bacterial & virus and even after passing through U.V. System it may redevelop in packed bottles over a period of time. Hence, it is necessary to disinfect RO water prior to bottling filling. So that by using ozone gas generator we are producing ozone gas i.e. O3, & is passed through the water, as ozone is having capacity to kill the bacteria as well as to control the further growth In the stored & packed water. Also it is increasing the level of oxygen in the water, where water Becoming very healthy
For required ppm Ozone gas mix up in finish product water. In ozone re-circulating tank water re-circulating by required flow rate pump . Ventury of ozone install out let of Pump it suction ozone and mix-up help with static mixer. This tank is provided with one no. of re-circulating pump and one no. of product water transfer pump to the filling section