Nitrification m Samenvattingen, Aantekeningen en Examens

Grade 3 wastewater Guide Rated A+ Svl Ans- How well activated sludge mls compact. Volume in milliliters occupied by 1 gram of activated sludge mixed liquor after 30 min of settling. Conventional activated sludge Ans- Mcrt 15 days, f-m .2-.4, org. Loading 20-40, mlss 1500-3000, aerator det. Time 4-8 hrs, return rate 25-50% Complete mix activated sludge Ans- Mcrt 5-15, f-m .2-.6, org. Loading 50-120, mlss 3000-6000, aerator det. Time 3-5, return rate 25-100% Step feed aeration activated ...

WasteWater Operator class C exam practice review questions and answers with certified solutions When Chlorine is combined with water what type of pipe should be used? A. Ductile iron B. Asbestos concrete C. PVC D. Carbon Steel C. PVC A good settling sludge would consist of what type of protozoa? A. Rotifers and nematodes B. Amoebas and Flagellates C. Stalked ciliates and mastagoria D. Free swimmers and stalk ciliates D. Free swimmers and stalk ciliates What is Phenolphylein used for in ...

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Bio-monitoring involves the use of aquatic life to test the toxicity of a wastewater treatment plant effluent. - Correct Answer TRUE The definition of an oxygen-deficient atmosphere is one that contains less than, what percentage of oxygen? - Correct Answer 19.5 1.) What is the function of a grit auger? - Correct Answer To Separate Organic from Inorganics 2.) Running a 30 min settling test is the best indication of what? - Correct Answer What is taking place in the Clarifier. 3.) How...

CA Wastewater Grade 3 sample questions Fluffy white foam indicates low aerator solids concentration, while leathery brown foam indicates high solids concentration. Ans- T When an anaerobic digester is becoming upset, the first sign will be increased alkalinity and decreased volatile acid concentration Ans- F Surface aerator oxygen transfer efficiency increases as submergence decreases and the oxygen transfer efficiency increases Ans- F When chlorine is used before disinfection for od...

FTCE Middle Grades Science 5-9 Exam 406 Questions with Verified Answers Which of the properties listed below is a characteristic of a liquid but not of a gas? A. It has the ability to flow. B. It maintains its volume in an open container. C. Its molecules are constantly in motion. D. Its volume varies depending on temperature. - CORRECT ANSWER B A 0.100 m3 chamber is filled with oxygen gas at standard conditions (101 kPa at 273 k). Assuming ideal conditions and behavior, what will be t...

Define reagent grade water Water with no detectable concentration of compound or element to be analyzed i.e it is below the method's detection level. What is osmosis? The net movement of water through a semipermeable membrane towards an area of higher solute concentration. What are the various ways reagent grade water is prepared? Distillation, reverse osmosis, ion exchange, carbon adsorption, filtration, ultrafiltration, ultraviolet oxidation. Standard Methods is a comp...

In the nitrogen cycle, which of the following steps involves removal of nitrogen from the atmosphere by bacteria? a. Ammonification b. Denitrification c. Nitrification d. Nitrogen fixation Answer is d. In nitrogen fixation, nitrogen is removed from the atmosphere by nitrogen-fixing bacteria and converted to ammonia 2. If enough H+ ions are added to pure water to raise the H+ concentration of the solution to ten times higher than the original concentration, what is the resulting OHconc...

Wastewater grade 1 exam questions and answers graded A+ domestic wastewater Comes from schools, homes, hospitals, businesses, light industrial facilities. population equivalents 100 lbs wastewater per day, .2 lbs TSS/day, .17 BOD/day industrial wastewater Comes from industries. Compatible wastes can be processed by the plant. Incompatible wastes are toxic to the plant. sanitary wastewater The combined domestic and industrial waste waters from community. storm water Water that runs off roads,...

Texas Wastewater A Exam Quuestions and Complete Solutions What is TCEQ doing to control "point source" pollution of the Texas waterways? - Answer: *Permitting of domestic wastewater plants *Permitting of industrial wastewater plants Describe proper design of force main wastewater lines. - Answer: Minimum two fps velocity with the smallest pump operating alone. Minimum four inch diameter pipe with 150 psi rating. What is Standard Dimension Ratio? - Answer: Ratio of outside pipe diamet...