Water Filters

A filter is a device which removes impurities from water by means of a fine physical barrier and/or chemical processes. Filters are used to cleanse water for irrigation, drinking water, aquariums, and swimming pools. Water Filters can be bought at stores to filter drinking water. Two major brands are PUR and Brita. These water filters remove things that are harmful to your health, things that can increase the chance of getting cancer, and things that taste or smell bad. The phyiscs of filters is based on sieving, ion exchanges and other processes.

Screen Filter

A screen filter is a type of filter utilizing a rigid or flexible screen to separate sand and other fine particles out of water for irrigation or other applications. These are generally not recommended for filtering out organic matter such as algae, since these types of contaminants can be extruded into spaghetti-like strings through the filter if enough pressure drop occurs across the filter surface. Also, screen filters do not have the capacity to filter large amounts of contaminants as do media filters. Typical screen materials include stainless steel, polypropylene, and nylon. Similar devices with larger openings designed only to keep out large objects are called strainers.

Desalination

Other than desalination, reverse osmosis is a more economical unit opearation for concentrating food liquids i.e. fruit juices. Researches are done on concentration of orange juice and tomato juice. Its advantages including a low operating cost and not involving heat processes, which makes it suitable for heat-labile substances like protein and enzymes.

House Water Filters such as GE pura ionizers and GE water filter replacement solutions.

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