User Account

All Pages

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

Buildin construction, methods of damp proofing

methods of damp proofing

Explain the geophysical methods, Why are undisturbed samples needed? Descri...

Why are undisturbed samples needed? Describe any one procedure of obtaining undisturbed samples for a multi-storeyed building project. For what purpose are geophysical methods u

#surveying, #chain

#chain

Explain mild and high-yield steel, High-yield steel vs. mild steel as road ...

High-yield steel vs. mild steel as road reinforcement High yield steel is the preferred material for the reinforcement of concrete carriageway due to the subsequent reasons:

Design of a weir, how do you design a weir - broad crested shape

how do you design a weir - broad crested shape

Bridge, dek type bridge

dek type bridge

Sieve Analysis of 20mm Aggregate., #How to find the sieve analysis of 20mm...

#How to find the sieve analysis of 20mm aggregate?

Riveted and welded joints, Riveted and Welded Joints: This theory deal...

Riveted and Welded Joints: This theory deals with riveted and welded connections. In riveted connections, you have learnt different types of rivet and various parameters perta

Define the meaning of circular prestressing, Define the meaning of circular...

Define the meaning of circular prestressing In circular prestressing, tendon wires are wrapped under tension over the concrete pipes which are pre-cast. The tension in the ten

HJJJJKKK, #questiRJTIEJITIUDUAIIGIIYHU7S7URURE78ITIT8Y88R6ET8Y86U895R7YRGLH...

#questiRJTIEJITIUDUAIIGIIYHU7S7URURE78ITIT8Y88R6ET8Y86U895R7YRGLHKGJFn..

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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