Water and Wastewater Terms Beginning F
A B C D E F G H I J K L M N O P Q R S T U V W Y Z
F/M ratio
facultative bacteria
facultative lagoon
fail-safe
fair lead pulley
fault
feedback
feedwater
filamentous organisms
filled dip
filter aid
filtration
final backfill
finished water
fire point
fit test
fit-for-purpose treatment
fixed costs
fixed film
fixed sample
fixed-spray nozzle
flagellates
flame polished
flammable liquid
flap gate
flash point
flat
flights
float (control)
float line
float on the system
floc
flocculation
flotation
flotsam
flow
flow equalization system
flow isolation
flow line
flow recording
fluidize
flume
fluoridation
flusher branch
flushing
flux
focal length
FOG (fats, oils, and grease)
food/microorganism (F/M) ratio
foot valve
force main
foundation
free available chlorine
free available chlorine residual
free chlorine
free oxygen
free residual chlorination
free water
freeboard
friability
friction loss
full dip
fulvic acid
fungi
fuse