subject: Reverse Osmosis Systems- Water Tretment Process And Usage [print this page] Reverse Osmosis Systems are water filtering plants/units that functions on the principles of reverse osmosis. Reverse Osmosis is a process of removing a wide variety of large molecules and ions from solutions; for the purpose of which a selective membrane is used. Under this process, the solution (water and unwanted solute) is kept at one side of the membrane and then treated with high pressure, due to which the solute reside on the pressurize side of the membrane and the pure water flows through the other side.
Reverse Osmosis Water Purification Unit
As the name suggests, it is a kind of water treatment plant that functions on the basis of reverse osmosis. A reverse osmosis water purification unit is a portable and self-contained water treatment plant. It is industrially used to transform water from any source into potable water.
Water Treatment Process
Process starts with the pumping of raw material into the Reverse Osmosis Water Purification Unit, and then is treated with a polymer that helps to start coagulation. As the coagulated water is passed through a filter which is multi-media, it undergoes ion exchange. Afterwards, the water is pumped through a filter having spiral wound cotton cartridge. Further, at the end, water is free from any particles which is larger than 5 micrometer, specifically 0.00020 and lose all turbidity. Then the treated water is fed through extreme pressure piston pump in a series of vessels where it is an object of reverse osmosis. At last, the water treated with the reverse osmosis is free from 90.00%-99.98% of the dissolved solids, which is then disinfected with chlorine and then stored for later use.
Traditional Usage of ROWPU
Traditionally, the unit has been designed for the military usage as it was portable, so that armed forces can get the pure water even at those places where water is not safe and pure to drink. However, United States armed forces and Canadian forces have different models of the units like some with trailers, some containerized, and some having vehicles unto themselves. In United States, each branch of forces has its own series of ROWPU models.
A Reverse Osmosis Plant
Reverse osmosis plant is a plant where the process of reverse osmosis is carried out for water treatment. As the demand of clean water rises among the civilians, the technology has been implied to make the pure water pure for civilians as well. Modern Reverse Osmosis System is highly advance and designed to clean a large quantity of water. However, like Reverse Osmosis Water Purification Units, these plants are not portable, exist in countable number and mostly used by the industries. Today, the bigger challenge is to find ways to minimize its energy consumption. A regular Reverse osmosis systems requires 6-kilowatt per hour of electricity to treat one cubic meter of water that is major of concern of today industries to bring this electricity consumption figure down also improve the output figures. Other challenge is to low down the salty briny waste produced by these plants for which a technology augmentation is required.
Electro de-Ionization (EDI) Systems
Electro de-Ionization (EDI) systems are high-tech tech machines that employ a popular chemical-free process of water purification called Electrodeionization. These machines operate on the phenomenon of ion exchange membranes and electricity, eliminating the need for tank exchange service.
Of late, Electrodeionization is gaining immense popularity as a water purifying technology due to its cost effectiveness and efficaciousness. This water treatment technique is actually a chemical-free process that removes ionized and ionizable species from solution using ion exchange resins that are continuously regenerated by an electric current. The water purified in the process is extremely pure and is generally referred to as type 2 water.
