
An activated sludge tank treats 1 MGD from the primary clarify and has an X of 2200 ppm SS. The water effluent is 0.9 MGD. 1.0 MGD of the sludge is recycled back into the tank and has an [SS] of 3980 ppm. The concentration of the BOD exiting the primary clarifier is 200 ppm. (a) What are Qw...

Hi , I am working on these problem sets. I am having the most trouble with question four and five. I do not know how to start with these two. Guidance on how to solve these would help so much. thanks akire

is the second table from the document the table 8.2.3 from the book? And how do you calculate the nonworkhome based production based on the numbers given and the table?

I need urgent help on how to solve these problem sets. I have questions 13 and 6 complete but still would like advice on the answers to those.

1. Find the expanded depth of the bed after the backwash when initial depth of the bed is 3 ft using given conditions. = 0.01g/cm/sec, T = 25oC, s = 2.65, =1, washrate = 1.5 cm/sec, ks2 = 196. (Assumed single size)

A beam is made by bonding a brass core to a steel tube and is subjected to a bending moment as shown. Knowing that b = 5.3 in, t = 0.1 in, Ebr = 14,500 ksi and Est = 29,000 ksi, determine the transformed moment of inertia for the beam using steel as the reference material. Express your answer...

Design Engineers and lawyers offices and companies in various specializations.Office space ranging from 60 square meters and its complications to give flexibility in the division and sale and rent. Design Gathers doctors clinics: Queries  waiting for registration  X  labs  Pharmacy ...

Earthquake and Wind Engineering Question 1. Consider the system below with mass m, springs k1 and k2, and damping c subject to forcingfunction p(t). The system is at rest at t=0. a Write equations of motion and determine the natural undamped and damped frequency for the above system b...

Please see the attachment ! Earthquake and Wind Engineering Question 1. Consider the system below with mass m, springs k1 and k2, and damping c subject to forcingfunction p(t). The system is at rest at t=0. a Write equations of motion and determine the natural undamped and damped...

Can some one please provide me with at least two different black screenshots from this program output? I'm using Visual studio 2008. Please provide answer ASAP if possible. Thanks Lab set up: Create a new multifile project, and create a class to model complexnumber,...
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