Glossary of Water and Wastewater Terms
A B C D E F G H I J K L M N O P Q R S T U V W Y Z5 random terms from our glossary
SDS
See safety data sheet.
square bar corkscrew
A type of tool used with a mechanical rodder to remove roots and rigid obstructions in a pipe by cutting and tearing action.
rodenticide (row-DENT-uh-side)
Any substance or chemical formulated to kill or control rodents.
combined chlorine
All the products from reactions between free chlorine and other compounds, especially ammonia and nitrogen-containing organic substances. Reactions with ammonia produce chloramines (monochloramine, dichloramine, and trichloramine, also known as nitrogen trichloride). Because of their lesser oxidative power, chloramines are less effective disinfectants than free chlorine, but persist in water longer. Reactions between free chlorine and organic compounds can produce toxic disinfection byproducts such as trihalomethanes (THMs).
catalyst (KAT-uh-list)
A substance that changes the speed or yield of a chemical reaction without being consumed or chemically changed by the chemical reaction.
