Environmental Question, Civil Engineering

Assignment Help:
An activated sludge tank treats 1 MGD from the primary clarify and has an X of
2200 ppm SS. The water euent 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 clarier is 200
ppm.
(a) What are Qw and Xw?
(b) What are Qc and Xc?
(c) What are Q1 and X1?
(d) What is Xe? (Answer = 24.4 ppm)
(e) Calculate the volume of the tank that will satisfy the following requirements:
(e-1) BOD loading < 35 lb BOD/1000 ft3day
(e-2) Sludge age > 5 days
(e-3) Aeration period > 4 hr

Related Discussions:- Environmental Question

Dock wall and dry dock, Dock Wall and Dry Dock: Dock Wall Fig...

Dock Wall and Dry Dock: Dock Wall Figure gives the diagram of a dock wall. Figure: Mass Concrete Dock Wall Dry Dock Figure 9 gives the details

Premix road, plz tell me the ratio of sand,aggregate,and asphalt.pl tell me...

plz tell me the ratio of sand,aggregate,and asphalt.pl tell me the mm of aggregate

Lagrange''s mean value theorem, Write some appplications of lagrange''s mea...

Write some appplications of lagrange''s mean value thorem

Acsr aluminium conductor steel reinforced are utilized as , Q. ACSR (Alumi...

Q. ACSR (Aluminium Conductor Steel Reinforced) are utilized as (A) over head transmission lines.            (B) super conductors. (C) fuse

Spalling reinforcement for pre stressing works, Spalling reinforcement for ...

Spalling reinforcement for pre stressing works in anchor blocks Reinforcement of anchor blocks in prestressing works usuallycomprises equilibrium reinforcement, bursting reinfo

Wbm work, ratio of moorum and aggregate

ratio of moorum and aggregate

Weigh batching, measurement of gauge box for sand ?

measurement of gauge box for sand ?

List the factor that affect the permeability of a given soil, List the fact...

List the factors that affect the permeability of a given soil. Determine the precautions that should be taken so that satisfactory permeability data may be obtained. Explaining

Gts bench mark, Gts bench mark in thane district maharashtra

Gts bench mark in thane district maharashtra

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd