Water Purification & Filtration Dictionary
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An alphabetical listing of General terms and items. |
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Pressure which creates resistance against a flow of water.
The flow of water in a pipe or line in a direction opposite to the normal flow.
Single-celled organisms (single form = bacterium) which lack well-defined nuclear membranes and other specialized functional cell parts and reproduce by cell division or spores. Bacteria may be free-living organisms or parasites. Bacteria (along with fungi) are decomposers that break down the wastes and bodies of dead organisms making their components available for reuse. Bacteria cells range from about 1 - 10 micron in length and from .2 - 1.0 micron in width. They exist almost everywhere on earth. Despite their small size, the total weight of all bacteria in the world likely exceeds that of all other organisms combined. Some bacteria are helpful others are harmful.
Any substance or agent which kills bacteria.
Having the ability to inhibit the growth of bacteria without destroying the bacteria. For example: silver-impregnated activated carbon will reduce bacterial colonization but not eliminate it.
The power supply to activate and regulate voltage in an ultraviolet (UV) lamp.
A chemical which can kill or inhibit the growth of living organisms such as bacteria, fungi, molds and slimes. Biocides can be harmful to humans.
Subject to degradation (break down) into simple substances by biological action. For example: the breakdown of detergents, sewage wastes and other organic matter by bacteria.
A strong oxidizing agent and disinfectant formulated to break down organic matter and destroy biological organisms.
The reduction or shutting off of flow due to filter medium or membrane fouling.
Water containing dissolved solids in the range > 1,000 to < 15,000 ppm .
The appearance in the product water of an amount of the contaminant which exceeds the design performance criteria.
A strong solution of salt(s) with total dissolved solid s concentrations. The waste solution in both automatic water softeners and reverse osmosis systems.
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