Activated sludge exam Study guides, Class notes & Summaries

Class C Wastewater Exam Questions and Answers 2024/2025 (Graded A+) A complete mix activated sludge plant has a fast settling sludge and high amounts of pin floc leaving the clarifier. One way to correct this problem is to : A. Increase the RAS Flow B. Reduce Wasting Rates C. Increase dissolved oxygen levels. D. Increase the F/M ratio by wasting more E. Increase the sludge age by wasting less. - ANSWER-D. Increase the F/M Ratio by Wasting More Which of the following flow rates should be ...

Basic Wastewater Operator Practice Exam Actual Questions and Answers Gen Solved 100% What is the predominant organism in a healthy activated sludge treatment plant? A. Stalked ciliates B. rotifers C. nematodes D. amoebas A. Stalked Ciliates A composite sample must be? A. sporadically collected in the treatment plant B. taken at one time C. analyzed immediately D. representative and sub-samples time spaced over 15 minutes apart D. representative and sub-samples time spaced ove...

Basic Wastewater Operator Practice Exam Actual Questions and Answers Gen Solved 100% What is the predominant organism in a healthy activated sludge treatment plant? A. Stalked ciliates B. rotifers C. nematodes D. amoebas A. Stalked Ciliates A composite sample must be? A. sporadically collected in the treatment plant B. taken at one time C. analyzed immediately D. representative and sub-samples time spaced over 15 minutes apart D. representative and sub-samples time spaced ove...

Class C Wastewater Exam Questions and Answers 2024/2025 (Graded A+) The Activated Sludge Process: A. requires preaeration B. requires Activated Carbon C. is an aerobic biological process. D. Usually precedes primary sedimentation. E. Requires 50% by volume old sludge to work effectively. - ANSWER-C. Is an Aerobic biological process A complete mix activated sludge plant has a fast settling sludge and high amounts of pin floc leaving the clarifier. One way to correct this problem is to : ...

Waste Water Operator Level 1 Exam Prep 2024/2025 In the activated sludge process, some of the activated sludge must be wasted to... A. Prevent excessive solid buildup B. Prevent clogging of the sludge return line C. Prevent overloading of sludge return pumps D. Increase digester gas production A. Prevent excessive solid buildup The best operating strategy for feeding primary sludge to an anaerobic digester is to feed... A. Several time a day B. Large quantities once or twice a d...

Class C Waste water Exam A-graded Final Certification Exam The Activated Sludge Process: A. requires preaeration B. requires Activated Carbon C. is an aerobic biological process. D. Usually precedes primary sedimentation. E. Requires 50% by volume old sludge to work effectively. C. Is an Aerobic biological process A complete mix activated sludge plant has a fast settling sludge and high amounts of pin floc leaving the clarifier. One way to correct this problem is to : A. Increas...

Texas Wastewater Class B Exam Prep (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct Q: In order to be a good communicator, what else do you need to be? Answer: Listener Q: During Nitrification, which organisms use ______ for food? Answer: Nitrates Q: In an Activated Sludge Treatment Process what is the most predominant organism? Answer: Ciliates and rotifers with few flagellates. Q: The Detention Time in a Contact Stabilization ...

Class C Waste water Exam A-graded Final Certification Exam The Activated Sludge Process: A. requires preaeration B. requires Activated Carbon C. is an aerobic biological process. D. Usually precedes primary sedimentation. E. Requires 50% by volume old sludge to work effectively. - CORRECT ANSWER-C. Is an Aerobic biological process A complete mix activated sludge plant has a fast settling sludge and high amounts of pin floc leaving the clarifier. One way to correct this problem is to...

Texas Wastewater Class A Exam Prep (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct Q: Before entering a confined space a worker should Answer: Use approved monitoring device and check for the presence of dangerous gasses, ventilate the space with a blower, wear a safety harness and attach a life line Q: A properly designed and operated primary sedimentation tank should remove _____ percent of incoming BOD Answer: 30-40% Q: Devices that may be...

Treatment 2 Wastewater Operator certification Study Guide Exam GradedA General Wastewater Treatment: What is the pressure head caused by? - CORRECT ANSWER-Water elevation General Wastewater Treatment: What color should the piping be that contains reclaimed water? - CORRECT ANSWERpurple General Wastewater Treatment: What is the term for the height to which a column of water will rise in a well. - CORRECT ANSWER-piezometric surface General Wastewater Treatment: In general, what is the...