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, volleyballfun24
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, lerasteidl
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
Engineering, 04.07.2019 18:10, winterblanco
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
Engineering, 04.07.2019 18:10, juansoto227711
Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery
Answers: 2
Wastewater from a primary treatment tank is to undergo secondary treatment in an activated sludge un...
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