1|Page
TEXAS WASTEWATER B EXAM WITH
QUESTIONS AND ANSWERS 100%
VERIFIED
Primary Clarifiers - correct answer_ In an activated sludge treatment
system, primary treatment processes include the:
Removal of Inorganic material from grit - correct answer_ In a washing
grit remover, the grit is moved slowly by screw conveyors up an
inclined channel in order to?
90% or above - correct answer_ An efficient primary clarifier is
expected to remove ? of the influent settleable solids.
Adequate DO at surface at all times - correct answer_ Proper operation
of a facultative pond system requires that:,
True - correct answer_ The amount of organic matter removed by a
trickling filter is mostly dependent on the recirculation ratio
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Bulking - correct answer_ In an activated sludge treatment plant, a
Sludge Volume Index (SVI) of 180 would indicate
Reseed The AB, Remove sludge from FC - correct answer_ The purpose
of returning the solids from the bottom of the clarifier to the aeration
tank in the activated sludge process is to
Free swimmer rotifers stalked ciliates - correct answer_ Microscopic
examination of a good-settling sludge should show a predominance of:
Dissolved oxygen (DO) or oxygen obtained from food materials such as
sulfate or nitrate - correct answer_ When nitrification takes place in the
activated sludge process, facultative bacteria use
Primary clarifiers - correct answer_ In an activated sludge process, the
results of a mixed liquor settling test indicate that the supernatant of
the mixed liquor sample is clear, but the supernatant of the plant
effluent sample is turbid. These test results indicate that the problem is
occurring in the?
TEXAS WASTEWATER B EXAM WITH
QUESTIONS AND ANSWERS 100%
VERIFIED
Primary Clarifiers - correct answer_ In an activated sludge treatment
system, primary treatment processes include the:
Removal of Inorganic material from grit - correct answer_ In a washing
grit remover, the grit is moved slowly by screw conveyors up an
inclined channel in order to?
90% or above - correct answer_ An efficient primary clarifier is
expected to remove ? of the influent settleable solids.
Adequate DO at surface at all times - correct answer_ Proper operation
of a facultative pond system requires that:,
True - correct answer_ The amount of organic matter removed by a
trickling filter is mostly dependent on the recirculation ratio
, 2|Page
Bulking - correct answer_ In an activated sludge treatment plant, a
Sludge Volume Index (SVI) of 180 would indicate
Reseed The AB, Remove sludge from FC - correct answer_ The purpose
of returning the solids from the bottom of the clarifier to the aeration
tank in the activated sludge process is to
Free swimmer rotifers stalked ciliates - correct answer_ Microscopic
examination of a good-settling sludge should show a predominance of:
Dissolved oxygen (DO) or oxygen obtained from food materials such as
sulfate or nitrate - correct answer_ When nitrification takes place in the
activated sludge process, facultative bacteria use
Primary clarifiers - correct answer_ In an activated sludge process, the
results of a mixed liquor settling test indicate that the supernatant of
the mixed liquor sample is clear, but the supernatant of the plant
effluent sample is turbid. These test results indicate that the problem is
occurring in the?
