Verma Process Pack

Additional Information:

• Production Capacity: 3000LPH
• Delivery Time: 3 -4 WEEK

Reverse Osmosis Plants
Reverse osmosis (RO) is a membrane-technology filtration method that removes many types of large molecules and ions from solutions by applying pressure to the solution, when it is on one side of a selective membrane. The result is that the solute is retained on the pressurized side of the membrane and the pure solvent is allowed to pass to the other side. To be "selective," this membrane should not allow large molecules or ions through the pores (holes), but should allow smaller components of the solution (such as the solvent) to pass freely. Reverse osmosis is used to purify Water and remove salts and other impurities in order to improve the color, taste or properties of the fluid.
Principle
Osmosis is a natural process. When two liquids of different concentration are separated by a semi permeable membrane, the fluid has a tendency to move from low to high solute concentrations for chemical potential equilibrium.
Osmosis describes how solvent moves between two solutions separated by a permeable membrane to reduce concentration differences between the solutions. When two solutions with different concentrations of a solute are mixed, the total amount of solutes in the two solutions will be equally distributed in the total amount of solvent from the two solutions. Instead of mixing the two solutions together, they can be put in two compartments where they are separated from each other by a semipermeable membrane. The semi permeable membrane does not allow the solutes to move from one compartment to the other, but allows the solvent to move.
Formally, reverse osmosis is the process of forcing a solvent from a region of high solute concentration through a semipermeable membrane to a region of low solute concentration by applying a pressure in excess of the osmotic pressure. The membranes used for reverse osmosis have a dense

Scheme of Treatment:

• Raw water after oxidation is passed through Stainless steel Multigrade  sand bed pressure filter to remove suspended impurities and precipitate of iron and manganese.

Activated Carbon Filter:

• Water stream coming from coarse filter is passed through Stainless steel activated carbon filter which ensures odour, colour free filtered water also free from residual chlorine.
• To maintain desired level of minerals / TDS in final product, major part of pretreated water shall be desalinated by RO with molecular rejection of dissolved solids. In molecular rejection, the hardness forming ions (Ca & Mg) may get deposited over membrane surface as a scale.

Pretreatment for Reverse Osmosis Stream:

• A food grade anti scalent dozing is done to soften the water

Fine Filtration by Multi Micron Cartridges Filter:

• By above process of pretreatment, water becomes free from undissolved solids, iron, manganese and organic matters & filtered water upto 20 microns by particle filtration. Keeping in view of porosity below 0.0005 microns and other characteristics of RO membranes, the make have specified that ideal SDI of RO feed water should be below 3 which is possible if water is properly filtered by micron cartridges of rating below 5 microns.
• Therefore we provided multi micron cartridges in stainless steel housing rating 5 microns to achieve ideal SDI level. Since in blending stream purification everything has to be removed except minerals

Desalination by Reverse Osmosis Unit:

• Reverse Osmosis is based on the technology which removes total dissolved solids by their molecular rejection. In the process pretreated water is pumped to membrane and feed pressure is increased above osmotic pressure. As a result pure water migrates from the concentrate to produce perfectly sterilized desalinated water. The system is designed based on raw water analysis treated water quality & recovery.
• We offer RO block fully automatic with synchronized logic control & instruments for on-line measurement of parameters to ensure safe and efficient working as well as treated water quality control revive the unit, but it never produce the specified output as well as quality of treated water also Detroit after cleaning.