Glossary of Water and Wastewater Terms

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5 random terms from our glossary

organizing

Deciding who does what work and delegating authority to the appropriate persons.

reverse osmosis (RO)

A high-pressure membrane technology that applies pressure to a concentrated solution that causes the liquid to pass across a semipermeable membrane to a weaker solution. The membrane allows the passage of the water (solvent) but not the dissolved solids (solutes) to seperate particles of 0.0001-microns to over 0.001-microns diameter or more from influent. RO can remove dissolved metal ions and dissolved salts. This process operates at high pressures because the principal mechanism of seperation is diffusion, rather than sieving. Also see osmosis.

accuracy

How closely an instrument measures the true or actual value of the process variable being measured or sensed.

specific capacity test

A testing method used to determine the adequacy of an aquifer or well by measuring the specific capacity.

hypochlorinators (HI-poe-KLOR-uh-nay-tors)

Chlorine pumps, chemical feed pumps, or devices used to dispense chlorine solutions made from hypochlorites, such as bleach (sodium hypochlorite) or calcium hypochlorite, into the water being treated.