Sludge - Study guides, Class notes & Summaries

When pressure testing a new line, how much pressure do you add? -1.5 times normal pressure, up to 150 pounds, whichever is greater What would cause a repeat Bac-T sample? -Incomplete form, not enough sample, silt or slime in the bottle, positive e-coli, all of the above What are the layers of stratification? -Upper layer - Epilimnion. Middle layer - Thermocline. Bottom Layer - Hypolimnion. What standard must bleach meet? -NSF (National Sanitation Foundation) What is the Solid contact u...

Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 = ...

Exam 3: PNR206 / PNR 206 (Latest 2024 / 2025 Update) Medical-Surgical Nursing II | Questions and Verified Answers | 100% Correct | Grade A - Fortis Question: Guillain Barre Syndrome-, what triggered continuous Answer: viral infection Question: patient with Guillain Barre Syndrome-, alert nurse if Answer: heart rate Question: Huntington’s disease chorea Answer: flighty, restless Question: patient w/ severe nausea, inflammation of gallbladder, priority? Ans...

BIO 250 Final Exam (Microbiology) | 60 Questions With 100% Correct Answers | Latest Update | Graded A+. What microbial process was responsible for changing Earth’s atmosphere from one without oxygen to one with oxygen? Select one: a. anaerobic respiration b. decomposition c. oxygenic photosynthesis d. temperature regulation In the nitrogen cycle, which of the following phases involves the release of nitrogen as into the Earth’s atmosphere? Select one: a. ammonication b. denitrica...

1-What microbial process was responsible for changing Earth’s atmosphere from one without oxygen to one with oxygen? Select one: a. anaerobic respiration b. decomposition c. oxygenic photosynthesis d. temperature regulation 2-In the nitrogen cycle, which of the following phases involves the release of nitrogen as into the Earth’s atmosphere? Select one: a. ammonification b. denitrification c. nitrification d. nitrogen fixation 3-Farmers commonly inoculate legume crops with Rhi...

1 - Absolute pressure is equal to standard sea-level plus: - Gauge pressure 1 - All of the following are types of scale except: - Silicone Types of scale include: - Silicate - magnesium carbonate - Calcium Carbonate 1 - Complaints in the winter that it is too cold in a building can be offset by: - Raising the humidity and the temperature 1 - Copper tubing is standardized on the basis of use into standard - Wall thickness schedules 1 - Define absolute pressure - The total pressure that i...

Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 =...

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 - Answer-D. Insufficient operator training Solids that float to the surface of the clarifier are referred to as ____________. A. Mixed liquor B. Film C. Residual solids D. Scum - Answer-D. Scum Solids that settle to the bottom of clarifiers and are removed from the pr...

The Wastewater Treatment B Test Questions And Answers All Verified Liftstations at a treatment plant or those which discharge directly to a treatment plant with an average flow greater than 0.1 MGD shall have three or more pumps or have automatically controlled variable capacity pumps, these pumps should be adjusted to actual flow conditions and controlled to operate so as to: - ANS Minimize surges in the treatment in the treatment units. In the contact stabilization system of activa...

When pressure testing a new line, how much pressure do you add? - 1.5 times normal pressure, up to 150 pounds, whichever is greater What would cause a repeat Bac-T sample? - Incomplete form, not enough sample, silt or slime in the bottle, positive e-coli, all of the above What are the layers of stratification? - Upper layer - Epilimnion. Middle layer - Thermocline. Bottom Layer - Hypolimnion. What standard must bleach meet? - NSF (National Sanitation Foundation) What is the Solid con...