Updated TX Class C Wastewater Treatment
License (latest 2024) questions &answers
verified|100%
A flow-weighted "composite" sample is a...
Combination of portions of samples collected at regular intervals and combined according to
flow
A BOD test is...
a major parameter in quality control
pH is important in the operation of...
anaerobic digesters; chlorination of wastewater; oxidation ponds
Total suspended solids are...
determined by filtration
Adequate chlorine residuals will...
destroy pathogenic organisms
Dissolved oxygen is necessary in...
secondary treatment processes
,Updated TX Class C Wastewater Treatment
License (latest 2024) questions &answers
verified|100%
Laboratory tests on an anaerobic digester may be used to determine...
digester loading and quality of supernatant and digested sludge
For anaerobic digesters, good sludge, supernatant and gas production is realized at a pH of
about...
7.0
The test(s) that best indicate(s) the condition of an anaerobic digester is (are)...
volatile acid concentration
The following tests are important in the control of an activated sludge process...
30 min setteability test; oxygen uptake rate; microscopic examination
The SVI should range from...
70-150
A low SVI may indicate...
sludge is settling too fast
,Updated TX Class C Wastewater Treatment
License (latest 2024) questions &answers
verified|100%
A low oxygen uptake rate might indicate...
toxic waters, low DO or low BOD
Good activated sludge will contain...
a high percentage of stalked ciliates and large numbers of rotifers
The TCEQ monthly effluent report must be submitted to the TCEQ in Austin by the ______ day
of the month following the month being reported
20th
What substances should NOT be dumped into the collection system?
acids; caustics; chemical fertilizers
All anaerobic digester roofs/covers should be equipped with pressure relief, vacuum relief
and _________.
flame-trap valves
Hazardous gases can be composed of...
combustibles and explosive gases; asphyxiation-producing gases; poisonous or toxic gases
, Updated TX Class C Wastewater Treatment
License (latest 2024) questions &answers
verified|100%
In small concentrations, hydrogen sulfide has a __________ odor.
rotten-egg
What stage of treatment is grit removal usually accomplished in?
Preliminary treatment
Rotating Biological Contactor
a type of biological secondary treatment process
How are protozoa (the cause of amoebic dysentery) destroyed?
disinfection
Other than stream discharge, what are other ways to dispose of effluent wastewater?
aquifer recharge, evaporation in a pond, and application to farm land by irrigation
Clean Water Act
gives the basic structure for regulating discharges of pollutants into the waters of the United
States
License (latest 2024) questions &answers
verified|100%
A flow-weighted "composite" sample is a...
Combination of portions of samples collected at regular intervals and combined according to
flow
A BOD test is...
a major parameter in quality control
pH is important in the operation of...
anaerobic digesters; chlorination of wastewater; oxidation ponds
Total suspended solids are...
determined by filtration
Adequate chlorine residuals will...
destroy pathogenic organisms
Dissolved oxygen is necessary in...
secondary treatment processes
,Updated TX Class C Wastewater Treatment
License (latest 2024) questions &answers
verified|100%
Laboratory tests on an anaerobic digester may be used to determine...
digester loading and quality of supernatant and digested sludge
For anaerobic digesters, good sludge, supernatant and gas production is realized at a pH of
about...
7.0
The test(s) that best indicate(s) the condition of an anaerobic digester is (are)...
volatile acid concentration
The following tests are important in the control of an activated sludge process...
30 min setteability test; oxygen uptake rate; microscopic examination
The SVI should range from...
70-150
A low SVI may indicate...
sludge is settling too fast
,Updated TX Class C Wastewater Treatment
License (latest 2024) questions &answers
verified|100%
A low oxygen uptake rate might indicate...
toxic waters, low DO or low BOD
Good activated sludge will contain...
a high percentage of stalked ciliates and large numbers of rotifers
The TCEQ monthly effluent report must be submitted to the TCEQ in Austin by the ______ day
of the month following the month being reported
20th
What substances should NOT be dumped into the collection system?
acids; caustics; chemical fertilizers
All anaerobic digester roofs/covers should be equipped with pressure relief, vacuum relief
and _________.
flame-trap valves
Hazardous gases can be composed of...
combustibles and explosive gases; asphyxiation-producing gases; poisonous or toxic gases
, Updated TX Class C Wastewater Treatment
License (latest 2024) questions &answers
verified|100%
In small concentrations, hydrogen sulfide has a __________ odor.
rotten-egg
What stage of treatment is grit removal usually accomplished in?
Preliminary treatment
Rotating Biological Contactor
a type of biological secondary treatment process
How are protozoa (the cause of amoebic dysentery) destroyed?
disinfection
Other than stream discharge, what are other ways to dispose of effluent wastewater?
aquifer recharge, evaporation in a pond, and application to farm land by irrigation
Clean Water Act
gives the basic structure for regulating discharges of pollutants into the waters of the United
States
