Water Treatment Plant Operation Volume 2 - Chapter 6 process
wastes
What is one unique Once partially dry, it will not expand
characteristic of sludge?
How can watershed Management of the land around a waterway
management best be
described?
Why is depositing lime Can increase soil pH where needed
softening sledges into soils
potentially be beneficial?
What is the main Scroll centrifuge operates continuously
difference between a
scroll-type and basket-type
centrifuge?
What study defines the land Source water assessment
area contributing water to
each public water system,
identifies the major potential
source of contamination, and
determines how suspectible
the public water supply is to
potential contamination?
, What are the two primary Gravity drainage and pressure dewatering
mechanisms through which
free water is separated from
sludge solids in a belt
press?
When does primary At the beginning
disinfection occur in the
source water treatment
process?
Why do water treatment plants Remove organic compounds from source water
use activated carbon filtration
systems?
How are lagoons used in To separate water from solids after filters have been backwashed
sludge handling and
disposal?
Which machine or process is Filter press
best suited for sludges with
high specific resistance?
What is an acceptable pH 6-9
range for process waste
discharge to comply with
NPDES permits?
What should operators do if Follow all confined space procedures
they must enter a closed
tank during cleaning?
How might the efficiency of a Preconditioning the sludge with chemical coagulants
sand drying beds dewatering
process be improved?
What legislation outlines SDWA
measures that ensure the
quality of drinking water by
protecting source water?
What does the rejection rate of Size and interaction with membrane
a contaminant depend on?
What main factor influences Source water quality
the design of the treatment
wastes
What is one unique Once partially dry, it will not expand
characteristic of sludge?
How can watershed Management of the land around a waterway
management best be
described?
Why is depositing lime Can increase soil pH where needed
softening sledges into soils
potentially be beneficial?
What is the main Scroll centrifuge operates continuously
difference between a
scroll-type and basket-type
centrifuge?
What study defines the land Source water assessment
area contributing water to
each public water system,
identifies the major potential
source of contamination, and
determines how suspectible
the public water supply is to
potential contamination?
, What are the two primary Gravity drainage and pressure dewatering
mechanisms through which
free water is separated from
sludge solids in a belt
press?
When does primary At the beginning
disinfection occur in the
source water treatment
process?
Why do water treatment plants Remove organic compounds from source water
use activated carbon filtration
systems?
How are lagoons used in To separate water from solids after filters have been backwashed
sludge handling and
disposal?
Which machine or process is Filter press
best suited for sludges with
high specific resistance?
What is an acceptable pH 6-9
range for process waste
discharge to comply with
NPDES permits?
What should operators do if Follow all confined space procedures
they must enter a closed
tank during cleaning?
How might the efficiency of a Preconditioning the sludge with chemical coagulants
sand drying beds dewatering
process be improved?
What legislation outlines SDWA
measures that ensure the
quality of drinking water by
protecting source water?
What does the rejection rate of Size and interaction with membrane
a contaminant depend on?
What main factor influences Source water quality
the design of the treatment
