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William’s weekly exercise program includes stair stepping, static stretching, cycling, and squats. Which of these activities is generally classified as a strength (resistance) exercise?

Your firm has been asked to design the third-stage plug-flow, nitrification-denitrification reactor for one of your long-term municipal clients. Pertinent design data are as follows: Design flow: 6.25 MGD Temperature 20 °C MLVSS/MLSS: 0.75 2nd stage nitrate (NO3–N) concentration: 30 mg/L Effluent nitrate (NO3–N) concentration: 1.0 mg/L Effluent TSS concentration: 3 mg/L Denitrification cell yield coefficient (Y): 0.85 mg MLVSS/ mg NO3—N removed Endogenous decay constant (ke): 0.04 day-1 Peak nitrate removal rate (): 0.27 mg NO3–N removed/mg MLVSSday Half-saturation constant for denitrification (KD): 0.15 mg NO3–N/L MLSS concentration: 2,800 mg/L Methanol requirement: 3.0 lb methanol/lb nitrate removed Methanol specific weight: 6.60 lb/ft3 Determine the following: (5 pts) “Design” MCRT for denitrification (Days) (5 pts) If the design MCRT for denitrification is calculated to be 5.39 days, determine nitrate removal rate (q)(unit: mg NO3—N removed/ mg MLVSS

The wastewater is to treated by a fixed-bed granular carbon adsorption column. The flow rate of the City of Orlando treatment facility flow rate is 60,000 gpd and the allowable breakthrough concentration, Ca is 20 mg/L. The design column has a unit liquid flowrate of 5 gpm/ft2 and the on-line time is eight (8) days. Your firm has been asked to use the “Kinetic” approach in your design using the following information. Q = 60,000 gpd C0 = 450 mg/L Ca = 20 mg/L Qunit = 5 gpm/ft2 On-line time (t) = 8 days Rate constant (k1) = 55.38 gal/lb

What is the major difference between four-stage Bardenpho processes and five-stage Bardenpho processes?

The typical oxygen transfer efficiency of a fine bubble diffuser is 10 – 30 %. What is the typical oxygen transfer efficiency of a coarse bubble diffuser?

Carbohydrates are stored in muscle as glycogen

How long is a lunar day?

If you are standing at 28 degrees north latitude, you will experience a high tide when the Moon is directly overhead. When will low tide occur?

A physically fit person can meet the physical demands of daily life, including physical activities and sports. 

An estimated ________ of wetlands worldwide have been destroyed in the past century.