reverse osmosis reverse osmosis



Reverse Osmosis

The Reverse Osmosis process is the same process that many hospitals throughout the world use to make certain that their pharmaceutical water is of the highest quality. Over 40 million Americans need to restrict their intake of salt because of high blood pressure, yet almost every water supply has sodium chloride in it.

Why put Reverse Osmosis in your home?

A home reverse osmosis system can substantially reduce dissolved metals such as Calcium, Magnesium, Sodium and Manganese as well as brackish minerals salts, Chlorides Chemicals, Germs, Radioactive rays, Pesticides and other tastes.  Water contains total dissolved solids. TDS is the measurement by weight of dissolved materials in a given volume of water. If a material will completely dissolve and is not visible in the water, it is part of the total dissolved solids. Reverse Osmosis helps to lower the TDS content in the water (such as brackish water, or seawater) since substances such as calcium, magnesium, and sodium can not readily pass through the seem-permeable membrane, while water can. With the assistance of water pressure, impurities are removed and sent down the drain.

Reverse Osmosis and Membranes

Reverse Osmosis is a membrane process that acts as a molecular filter to remove up to 99% of all dissolved minerals. The pores in the membrane are about .0001 micron. To give you some perspective, the smallest known bacteria is .02 micron. Water passes through the membrane while the dissolved and particulate materials are left behind. As pressure is applied to the concentrated solution, the flow is reversed and water is forced through the membrane from the concentrated side to the dilute side. The central part of the reverse osmosis system is the module which is a pressurized container housing the semi-permeable membrane. Cellulose Triacetate (CTA) membrane are used for chlorinated supplies. Thin film composite (TFC) long life membranes are used for non-chlorinated supplies. 

Reverse osmosis system operates on line or system pressure

Here the feed water will be separated into unable product called permeate and waste product called concentrated. The product water may then pass into a diaphragm tank which holds the water until it is taken from the discharge faucet by the user. The home Reverse osmosis system operates on line or system pressure. No electricity is needed. Its compactness allows the system to fit easily in a small area, often under the kitchen sink or in a cabinet.

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