Engineering, 05.05.2020 04:15 mommer2019
Wastewater from a primary treatment tank is to undergo secondary treatment in an activated sludge unit. The following data and operational parameters are specified: Two identical units are designed to operate in parallel and to process a combined wastewater flow rate of 0.5 m3 /s; the BOD5 of the effluent suspended solids is 70% of the allowable suspended solids concentration. Assume ideal operation of the reactor units. (a) If the EPA’s secondary treatment standards (average monthly) are to be met. How large must each reactor be (m3 )?
Answers: 3
Engineering, 03.07.2019 14:10
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
Answers: 3
Engineering, 04.07.2019 18:10
Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.
Answers: 1
Engineering, 04.07.2019 18:20
Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms
Answers: 2
Engineering, 04.07.2019 18:20
Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero
Answers: 2
Wastewater from a primary treatment tank is to undergo secondary treatment in an activated sludge un...
Physics, 02.12.2019 11:31
Mathematics, 02.12.2019 11:31
Computers and Technology, 02.12.2019 11:31
Health, 02.12.2019 11:31
Mathematics, 02.12.2019 11:31
Chemistry, 02.12.2019 11:31
Arts, 02.12.2019 11:31
Mathematics, 02.12.2019 11:31