Abc wastewater - Study guides, Class notes & Summaries

Performance problems in the activated sludge process can be caused by ____________. A. Poor solids dewatering B. Inadequate chlorination of effluent C. Consistent influent characteristics D. Insufficient operator training - correct answer D. Insufficient operator training Solids that float to the surface of the clarifier are referred to as ____________. A. Mixed liquor B. Film

Turbidity in wastewater is caused by A. color B. dissolved calcium C. hardness D. finely divided suspended material - correct answer D. finely divided suspended material The gas most commonly associated with septic wastewater is A. carbon dioxide B. carbon monoxide C. hydrogen sulfide D. methane - correct answer C. hydrogen sulfide How many cubic meters per second in 10 MGD? A. 0.44 B. 1.44 C. 4.73 D. 24.62 - correct answer A. 0.44 Mechanical ventilation of a lift station is...

To have significant meaning for laboratory tests of the evaluation of a wastewater treatment plant's performance the best method of sampling is A. Grab sampling B. Hourly sampling C. Sampling during peak flow D. Proportional composite sampling E. Automatic sampling - correct answer D. Proportional composite sampling BOD samples should be collected before chlorination because A. Chlorine reacts with the buffer solution B. Chlorine interferes with the activity of organisms C. Chlorine ...

First action for a polymer spill? - Answer-Apply an absorbent to dispel such as sand or kitty litter and then sweep up the materials Total discharge head includes? - Answer-Discharge pressure head + static discharge head + velocity head + friction head Where is the best location to collect a sample? - Answer-A location that represents the entire waste stream or basin Preservation and holding times for BOD samples - Answer-48 hours at<=6 degrees centigrade Define BOD - Answer-The rate a...

First action for a polymer spill? - Apply an absorbent to dispel such as sand or kitty litter and then sweep up the materials Total discharge head includes? - Discharge pressure head + static discharge head + velocity head + friction head Where is the best location to collect a sample? - A location that represents the entire waste stream or basin Preservation and holding times for BOD samples - 48 hours at<=6 degrees centigrade Define BOD - The rate at which organisms use the oxygen in...

ABC Wastewater Collection Level 3/ 77 Q&A/ . Terms like: In certain situations, a supervisor encourages the employees to make their own decisions. This is considered to be A. against the rules to follow past experiences in decision-making B. bad form since the supervisor eventually loses control C. highly desirable, since it encourages employee growth and frees the D. supervisor for other tasks E. passing the buck - Answer: C. highly desirable, since it encourages employee growth

Turbidity in wastewater is caused by A. color B. dissolved calcium C. hardness D. finely divided suspended material - Correct Answer D. finely divided suspended material The gas most commonly associated with septic wastewater is A. carbon dioxide B. carbon monoxide C. hydrogen sulfide D. methane - Correct Answer C. hydrogen sulfide How many cubic meters per second in 10 MGD? A. 0.44 B. 1.44 C. 4.73 D. 24.62 - Correct Answer A. 0.44 Mechanical ventilation of a lift station is...

First action for a polymer spill? - correct answer Apply an absorbent to dispel such as sand or kitty litter and then sweep up the materials Total discharge head includes? - correct answer Discharge pressure head + static discharge head + velocity head + friction head Where is the best location to collect a sample? - correct answer A location that represents the entire waste stream or basin Preservation and holding times for BOD samples - correct answer 48 hours at<=6 degrees centigr...

Clint's ABC Wastewater Exam Questions and Answers

Clint's ABC Wastewater Exam Questions and Answers