Texas Waste Water Treatment Ch#10 Advanced Treatment Processes - Statistics

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This quiz has been taken 58 times
The average score is 10 of 16

Answer Stats

Question	Answer	% Correct
Which of the following have been tried as oxidizing agents in wastewater treatment?	All of the above	82%
The materials found to be practical for phosphorus precipitation include the ionic forms of which of the following?	All of the above	82%
Advanced treatment processes strive to provide a ________ removal level of specific compounds, suspended solids, and oxygen-demanding materials than cannot be achieved through secondary treatment alone.	higher	82%
As ________ materials are decomposed, their phosphorus content is converted to orthophosphate.	organic	82%
The most important factor affecting filter performance is the ________ of the secondary effluent applied to the filter.	quality	82%
________ is the adsorbent most commonly used for water treatment.	Activated carbon	73%
Which of the following is a common coagulant used for chemical precipitation?	All of the above	73%
Proper ________is essential to filter performance.	cleaning	73%
Laboratory-scale studies have shown that the changes occurring in the settlement of the floc are greatly influenced by ________.	biological activity	55%
________ occurs when solutions of two different concentrations are separated by a semipermeable membrane such as cellophane.	Osmosis	55%
Direct filtration of secondary effluent is often used to reduce ________ solids to low levels.	suspended	55%
Many overlook ________ as an oxidant because of its relative ineffectiveness in conventional waste treatment.	ozone	45%
Biological denitrification is accomplished under ________ conditions by heterotrophic bacteria that use nitrate during the fermentation of organic carbon materials.	anaerobic	36%
________ can cause problems in granular activated carbon (GAC) treatment.	Biological growth	36%
Electrons pass from the ________ source (the electron donor) to nitrate or nitrite (the electron acceptor) to promote the conversion to nitrogen gas.	carbon	27%
The use of granular activated carbon (GAC) for ________ removal is common.	organic	27%

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