Design a sanitary branch sewer, Civil Engineering

Assignment Help:

Q. For what capacity would you design a sanitary branch sewer to serve a section having a population of 12500 persons with a rate of supply of 135 Liters.

Ans.- Average flow equals - 12500 x 135 = 1692500 Liter / day.

                                              = 1692500 / 24 x 60 x 60 = 19.6 Liter / sec.

Making allowance for variation max 3 time of Qty for intensity of flow -

19.6 x 3 = 58.8 Liter / sec. = 0.06 cum / sec.

But this quantity represents only 2/3rd fill there fore full capacity of sewer

= 1.5 x 0.06 = 0.09 cum / sec      for which the section is designed

Assuming a velocity of 1.00 m / sec.    ,     A = Q / V  = πD2 / 4 V ,    D2 = 4 Q / πV

D = √ 4 Q / πV = √ 4 x 0.09 / 3.14 x 1.00 =  0.34 m.

A sewer of 350 mm dia could be used.


Related Discussions:- Design a sanitary branch sewer

Pavement design, differences between highway pavement and airfield pavement...

differences between highway pavement and airfield pavement

Define pressure on an inclined plane, Define Pressure on an Inclined Plane ...

Define Pressure on an Inclined Plane Similar to a vertical plane, fluid pressure increases linearly with increasing depth. The average pressure on an inclined plane occurs at t

One layered spatial structures, Classification of the damage according to t...

Classification of the damage according to the type of structures The level of damage in spatial trusses has also been classified into three different levels based on th

High temperature in laying bituminous pavement, High temperature in laying ...

High temperature in laying bituminous pavement Generally bituminous materials are also broadly categorized into two types viz bitumen McAdamsand hot-rolled asphalts. At the ti

Explain rebound hammer - underwater non-destructive testing, Explain Reboun...

Explain Rebound Hammer - Underwater non-destructive testing? The underwater rebound hammer system is a surface hardness tester which can be employed to acquire a general condit

How the bursting tensile forces produced, How the Bursting Tensile Forces p...

How the Bursting Tensile Forces produced These are tensile forces produced due to concentrated longitudinally applied prestressing forces in the end zone of a post-tensioned co

General requirement for civil engineering, Question General requirement for...

Question General requirement for Civil Engineering Works in 1992 Edition, Clause 15.09 details that tying wires for strengthening adjacent to and above Class F4 and F5 closes must

Determine the final stresses in the bolt, Determine the final stresses in t...

Determine the final stresses in the bolt: A steel bolt of diameter 12 mm and length 175 mm is used to clamp a brass sleeve of length 150 mm to a rigid base plate as in Figure.

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