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

What is function of mortar in brick walls, Q. What is Function of mortar in...

Q. What is Function of mortar in brick walls? A distinctive brick wall structure generally comprises the subsequent components:  (i)  Coping on top of the brick wall to prot

Stripping formwork, activity duration for stripping formwork

activity duration for stripping formwork

Choosing between trailer suction hopper and grab dredgers, Question In ...

Question In search reclamation, what are considerations in choosing between trailer suction hopper dredgers and grab dredgers ? Answer Trailer suction hopper dred

Area moment of inertia of circular area, derivation of the formula

derivation of the formula

Explain the term - uniaxial - biaxial -triaxial prestressing, Explain the t...

Explain the term - Uniaxial - Biaxial -Triaxial Prestressing These terms refer to cases when the concrete is prestressed in only one direction, in two mutually perpendicular di

Properties of ordinary portland cement, Properties of Ordinary Portland Cem...

Properties of Ordinary Portland Cement (i) Chemical properties: Portland cement consists chemical compounds are following: (a) Tricalcium silicate          3 CaO.SiO 2 (C

Layout of port, layout of port

layout of port

Autocad.., how to use an autocad

how to use an autocad

Engineering drawing symbol, what is the symbol of MDB

what is the symbol of MDB

Mr Kamal Saxena, What is WBM road. How it is constructed?

What is WBM road. How it is constructed?

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