About 6m hectares of farm soils in England and Wales are at risk of compaction or erosion, according to an Environment Agency (EA) study. Intensive agriculture has caused arable soils […]
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Category: Science and Technology
Water Treatment Terms……The Letters XY and Z
X-RAYS: Electromagnetic radiation with a very short wavelength (0.01 to 12 nanometres), shorter than ultraviolet radiation. YIELD: the amount of product water produced by a water treatment process. ZEOLITES: Hydrated […]
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Water Treatment Terms………The Letter W
WASTEWATER: The liquid-borne waste products of domestic, industrial, agricultural and manufacturing activities. In a community, an Average of 50 to 100 gallons of wastewater is generated per person per day. […]
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Water Treatment Terms………The Letter V
VACUUM DISTILLATION: Distillation that occurs at a pressure somewhat below atmospheric pressure. Lowering the pressure also lowers the boiling point of water, thus conserving energy by requiring less heat to […]
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Water Treatment Terms…………….The Letter U
ULTRAFILTRATION (UF): is a type of membrane filtration that separates suspended solids and solutes of high molecular from a liquid and low molecular weight solutes. This separation process is used […]
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Water Treatment Terms………….The Letter T
TASTE THRESHOLD: The minimum concentration of a chemical or biological substance which can just be tasted. TCE: trichloroethene TDS: total dissolved solids. TEFLON: The trade name of a high temperature […]
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Water Treatment Terms……….The Letter S
SAFE WATER: see potable water. SALINE: Consisting of, or containing salt. SALT WATER: The general term for all water over 1,000 ppm (mg/L) total dissolved solids. SAND FILTER: The oldest […]
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Water Treatment Terms………..The Letter R
RADIAL FLOW: The flow pattern in which water flows from the outside of a filter element to the center core. RADICAL: A group of atoms acting as a single atom […]
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Water Treatment Terms………..The Letters P and Q
PARTICLE: A very tiny, separate subdivision matter. PARTICLE FILTRATION: Filtration of particles in the size range of 2 microns or larger in diameter. Particle filtration is typically handled by cartridge […]
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Water Treatment Terms……..The Letter O
OHM: Unit of Resistivity. See “Resistivity”. OPERATING PRESSURE: The manufacture’s specific range of pressure expressed in pounds per square inch (psi) within which a water processing device or water system […]
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