Wastewater Treatment Module 10
Advanced Treatment Processes Exam
Questions and Answers
Advanced treatment processes strive to provide a _______ removal of specific
compounds, suspended solids, and oxygen-demanding materials that cannot be
achieved through secondary treatment alone. - Answer-Higher
Direct filtration of secondary effluent is often used to reduce _______________ solids to
low levels. - Answer-suspended
The most important factor affecting filter performance is the _________ of the
secondary effluent applied to the filter. - Answer-quality
Proper __________ is essential to filter performance. - Answer-cleaning
____________ is the absorbent most commonly used for water treatment. - Answer-
Activated carbon
The use of Granular Activated Carbon (GAC) for __________ removal is common -
Answer-organic
____________ can cause problems in GAC treatment. - Answer-Biological growth
_______________ have been tried as oxidizing agents in wastewater treatment. -
Answer-Chlorine dioxide (ClO2)
Ozone (O3)
Chlorine (Cl2)
Many overlook ___________ as an oxidant because of its relative ineffectiveness in
conventional waste treatment. - Answer-Ozone
Laboratory-scale studies have shown that the changes occurring in the settlement of the
floc are greatly influenced by _______________. - Answer-biological activity
__________________ is a common coagulant used for chemical precipitation. -
Answer-Aluminum sulfate (alum)
Sodium aluminate
Ferric Sulfate
_________________ occurs when solutions of two different concentrations are
separated by a semipermeable membrane such as cellophane. - Answer-Osmosis
Advanced Treatment Processes Exam
Questions and Answers
Advanced treatment processes strive to provide a _______ removal of specific
compounds, suspended solids, and oxygen-demanding materials that cannot be
achieved through secondary treatment alone. - Answer-Higher
Direct filtration of secondary effluent is often used to reduce _______________ solids to
low levels. - Answer-suspended
The most important factor affecting filter performance is the _________ of the
secondary effluent applied to the filter. - Answer-quality
Proper __________ is essential to filter performance. - Answer-cleaning
____________ is the absorbent most commonly used for water treatment. - Answer-
Activated carbon
The use of Granular Activated Carbon (GAC) for __________ removal is common -
Answer-organic
____________ can cause problems in GAC treatment. - Answer-Biological growth
_______________ have been tried as oxidizing agents in wastewater treatment. -
Answer-Chlorine dioxide (ClO2)
Ozone (O3)
Chlorine (Cl2)
Many overlook ___________ as an oxidant because of its relative ineffectiveness in
conventional waste treatment. - Answer-Ozone
Laboratory-scale studies have shown that the changes occurring in the settlement of the
floc are greatly influenced by _______________. - Answer-biological activity
__________________ is a common coagulant used for chemical precipitation. -
Answer-Aluminum sulfate (alum)
Sodium aluminate
Ferric Sulfate
_________________ occurs when solutions of two different concentrations are
separated by a semipermeable membrane such as cellophane. - Answer-Osmosis
