TM 10-4610-232-34Hypochlorite — Calcium hypochlorite (chlorine) used to destroy biological growth in water.Inlet pressure — Pressure measured at the inlet of a component.Nuclear, Biological, Chemical (NBC) — Filtration unit of the ROWPU used to filter out nuclear, biological, orchemical contaminants; includes carbon and deionizing (DI) filtration.Neutralize — To counteract the effects of contaminants in the water or ROWPU.Nephelometric Turbidity Unit (NTU). — A measurement of turbidity as determined by a turbidity meter.Nuclear warfare agents. — These are removed in the deionizing (DI) filter of the NBC filtration unit.Osmosis — Process in which water diffuses through a membrane from a less concentrated saline solution to amore concentrated saline solution.Osmostic pressure — The pressure generated by the osmotic passage of water into a more saline water.Outlet pressure — Pressure measured at the outlet of a component.PicoCuries. A measurement of nuclear radiation.Polyelectrolyte — Chemical mixed with water to produce floc particles.Potable water— Water meeting military standards for drinkability.Potential for hydrogen (pH) — This symbol is used with a numeric value to indicate the relative acidity or alkalinityof a solution. The pH scale runs from 0-14 with number 7 being a neutral solution (pure water). The numbers 6 to1 indicate increasing acidity and the numbers 8 to 14 indicate increasing alkalinity.Product — Water produced by the Water Purification System of the ROWPU before adding hypochlorite.Pulse dampener — Unit to smooth out regularly repeated variations in output of RO pump.Raw water — Contaminated or untreated source of water for the Raw Water Intake System of the ROWPU.Reagents — Chemicals used to cause a reaction or change.Reject — See “brine.”Reverse Osmosis (RO) — A reversal of the osmosis process brought about by applying a water pressure greaterthan osmotic pressure on water containing dissolved solids.Reverse Osmosis (RO) Element — A device containing the membrane material which provides the reverseosmosis separation, a feed channel for water passage and a product channel and collector for gathering thepurified water.Reverse Osmosis (RO) Vessel — A high pressure cylinder which holds one or more RO elements.Saline water — A water containing dissolved solids (salts).Scale — A build up of salts such as calcium carbonate or calcium sulfate on the reverse osmosis elements.Semi-automatic — A device or system which, when manually started, will continue to operate until anoperational cycle is complete.Glossary-4
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