Glossary of Water Treatment Terms & Definitions - U

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Ultrafiltration

A membrane type system that removes small colloids and large molecules from solutions. Ultrafiltration removes particles in size range between 0.002 to 0.1 micron range. The process falls between reverse osmosis and microfiltration as far as the size of particles removed is concerned.

Ultrapure Water

No standards exist describing ultrapure water though it is not considered to be sterile. It is water that has been deionized and provides high resistivity and contains no organics.

Ultraviolet Light

Radiation having a wave length shorter than 4000 angstroms (visible light) down to 100 angstroms on the border of the x-ray region. Ultraviolet light is used as a disinfectant.

Upflow

The operation of an ion exchange unit in which solutions are passed in at the bottom and out at the top of the container.

Uranium

A radioactive metallic element found naturally in combination with other materials. Uranium 238 is the most common form.

We also carry.....

Inline Water Filter, Conditioner and Purifier

Inline filters are installed between the line carrying water to your faucet and the faucet itself. These filters come packed with filtration media or membranes that trap contaminants while maintaining normal water flow.

Water Filter cartridges are best for reducing bacteria, cysts, chemicals and chlorine taste & odor.

Water Conditioner cartridges have the added benefit of also reducing sediment and heavy metals such as lead.

Water Purifier cartridges reduce chemicals, chlorine taste & odor with the added benefit of an ultra-filtration membrane for retention of bacteria, cysts & viruses.

Kits are available that allow the filters to be connected to a separate, dedicated drinking water faucet.

Maintenance includes periodic changing of the filter cartridges.

Reverse Osmosis Systems (RO)

The name may sound technical, but osmosis is a natural organic phenomenon that occurs in nature on an everyday basis. RO systems force water under pressure through a semi-permeable membrane and a series of pre-filters then into a storage tank that holds the treated water until it’s needed. A dedicated external faucet is included so that the stored water is only used when desired.

RO system filter modules include

A pre-filter that captures larger particles, chlorine and other substances
A semi-permeable membrane filter that captures finer contaminates
An activated carbon filter that takes care of residual taste, odor and additional organic contaminates.

RO systems reduce bacteria, cysts, sediment, chemicals, lead & other heavy metals, dissolved solids, chlorine taste and odors.

Maintenance includes periodic replacement of the pre-filter, semi-permeable membrane and activated carbon filter cartridges.