waste water treatment Flashcards
1
Q
what happens first?
A
passes through mesh getting rid of grit
2
Q
what is the sewage aloud to do now
A
settle in sedimentation tanks - sludge
3
Q
what happens to sludge?
A
taken away and digested by anaerobic bacteria - produces biogas - burned for electricity
4
Q
how do we reduce the amount of harmful particles in water?
A
bubble it - aerobic bacteria multiply - presence of oxygen - aerobic bacteria digest harmful microorganisms
5
Q
how to produce portable water?
A
ground water with aquifers
