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Poorly treated municipal wastewater is discharged to a stream. The river flow rate upstream of the discharge point is add 8.7 m35. The discharge occurs at a flow of Qd = 0.9 es and has a BOD concentration of 50.0 mg 1.72. Assuming that the upstream BOD concentration is negligible
(a) What is the BOD concentration just downstream of the discharge point?
(b) If the stream has a cross-sectional area of 10 m2, what would the BOD concentration be 50 km downstream? (BOD is removed with a first-order decay rate constant equal to 0.20 day)
Prepare a skeleton outline and a detailed outline
how much additional water must be removed from the outlet sugar to dry it completely, and what annual revenue can be expected if dry sugar sells for $0.15/lbm?
What is the expected electron configuration of elemental bohrium?
Cite the indices of the direction that results from the intersection of each of the following pair of planes within a cubic crystal:
The viscosity of the liquor is 0.7 mN m-2 s. The cutoff crystal size required is 5 μm. Select a suitable type of centrifuge to use for this duty.
Discuss the criteria that you would use to determine the required dimentions of this device. What are the potential failure mechanisms? What materials might be appropriate for the manufacture of this device, and why?
This is the first part of a three-part assignment: an individual assignment to research existing or emerging IT related technology and its ethical impact.
What acid and what strong base would react in aqueous solution to produce the following salts in the formula equation? Write the balanced formula equation for each reaction.
An irreversible Isomerizationreaction AR is carried out in a liquid phase in MFR. Thereaction is first order and the rate constant at 165oC is 0.7 hr-1.
Calculate the power transferred across the air gap, the rotor copper loss at full load, and the electromagnetic torque at full load in newton-meters.
The massive emission of carbon dioxide (CO2), the major component of greenhouse gasin the environment, is receiving significant attention around the world. This has led tonumerous proposals to sequester or eliminate the CO 2. One of the options is..
Draw a qualitative Pxy graph for this system at 100 °C. Show all the important features on the graph. The saturation pressure of nitrobenzene at 100 °C is 21 mmHg.
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