Waste water treatment - Study guides, Class notes & Summaries

Waste Water Treatment Final Questions And Answers 1. What are the two primary purposes of RAS Flow - ANS-maintain sufficient bio-populations, a safe sludge blanket and to prevent carry over 2. Mixed Liquor Volatile suspended solids are also ___________ - ANS-biomass 3. Oxidation ditches are __________ flow reactors that can also be called ____________ track basins - ANS-plug, aeration 4. Activated sludge is a completely __________ system - ANS-mixed 5. ________________ walls reduce shor...

Waste Water Treatment 6C Exam Prep

Level 1 Waste water treatment Test study guide 2024/2025 verified In the formula Q=V(A), Q is defined as rate of flow expressed as? - CORRECT ANSWER-Cu. Ft. / sec. What is the primary objective of the Clean Water Act of 1972? - CORRECT ANSWERRestore and maintain the chemical, physical, and biological integrity of water in the US When cells use their own protoplasm and start to eat each other, as food to provide the energy to maintain life, this is known as what type of growth? - CORREC...

Storm Water, Waste Water Treatment and Water Quality exam questions fully solved & updated 2024

Name and define the stages of waste water treatment. - Answer-1. Preliminary treatment Screening Shredding Grit removal Oil/grease flotation removal 2. Primary treatment Removal of easily settleable solids/organic matter Removal of floating scum Sedimentation 3. Secondary treatment Removal of biodegradable, soluble organics and suspended solids Biological treatment (activated sludge process), trickling filters/bio towers, lagoons Sedimentation Disinfection 4. Tertiary treat...

REHS Exam: Private Onsite Wastewater Treatment and Disposal Questions and Answers with Complete Solutions

Biochemical Oxygen Demand (BOD) - correct answer The difference between the initial dissolved O2 in a water sample and dissolved O2 in a duplicate sample after a stated period of time (usually 5 days). Best single measure of wastewater or polluted water. Chemical Oxygen Demand (COD) - correct answer A measure of the amount of O2 chemically consumed by the oxidation of organic and oxidizable inorganic materials in a water sample. Good for measuring industrial wastes. Domestic Sewage - corre...

1 MISSOURI BOATING LICENSE EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Bow Correct Answer: Front of the vessel. Stern Correct Answer: Rear of the vessel. Starboard Correct Answer: Right side of the vessel. Port Correct Answer: Left side of the vessel. Hull Correct Answer: Body of the vessel. Gunwale Correct Answer: Upper edge of vessel's side. 2 Cleat Correct Answer: Metal fitting on which a rope can be fastened. Propeller Correct Answer: Rotates and...

Industrial Storm Water Certified Operator Exam Questions With Correct Answers 2023/2024 | 100% Verified. Organic enrichment of storm water runoff from sources such as food processing, airport deicing, antifreezes, and sewage create addition oxygen demand in lakes and streams. Much of the demand is due to bacteria feeding on these materials. The increased oxygen demand can lead to ____________________________________, which is a common cause of fish kills. - Correct Answer-Oxygen depletion ...

What are the treatment processes in PRELIMINARY Wastewater Treatment? - Screening Comminution Grit Removal Pre-Aeration Flow Metering / Sampling What are the treatment processes in PRIMARY Wastewater Treatment? - Sedimentation / Flotation What are the treatment processes in SECONDARY Wastewater Treatment? - Biological Treatment (ie activated sludge, trickling filters, rotating biological contactor (RBC)) Sedimentation What are the treatment processes in TERTIARY Wastewater Treatment? -...