Engineering, 24.03.2021 19:00 Decaide

The following data are from the Ohio River in the vicinity of Cincinnati (mile 470) during low flow, September 1967. A. If the mean velocity of the river is 0.3 m s 1, calibrate the Streeter-Phelps model using the field data, and solve for the rate constant ka and kd. The saturation concentration for dissolved oxygen at the time of the survey was 8.3 mg/I, and the main wastewater discharge was at mile point 472. Distance(miles 460 465 470 472 475 480 490 500 510 520 540 560 580
BOD, mall 4 4 4 12 11 9.3 7.5 6 5.3 4.5 4 3 2.5
D. O., ma/l 7.5 7.8 6.7 5.3 3.8 3.2 2.8 2.8 3.1 4.1 5.3 9.3 7.5 6 5.3 4.5 4 2.5
B. waste load allocation. If the flow of the river was 5000 cfs, estimate the wastewater discharge in kg BOD d-1. How much waste is allowed (in kg BOD d-1)if the D. O. Concentration must be greater than 5.0 mg/1?

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, kevin72836

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Answers: 2

continue

Engineering, 04.07.2019 18:10, ijohnh14

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Answers: 2

continue

Engineering, 04.07.2019 18:10, Larkinlover703

Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables

Answers: 1

continue

Engineering, 04.07.2019 18:10, jesuslovesusall3

Courses that are developed by subject matter experts, internal or extemal to the college or university. these programs are marketed by the school (clo2) marks a)-vocational schools b)-vendor training c)-colleges & universities d)-continuing education programs

Answers: 2

continue

You know the right answer?

The following data are from the Ohio River in the vicinity of Cincinnati (mile 470) during low flow,...