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

Explain types of tiles, Q. Explain Types Of Tiles? Different types of t...

Q. Explain Types Of Tiles? Different types of tiles available in the market for floor and walls & dado are as under - 1. Glazed tiles , 2. Ceramic tiles , 3. Granit

Necessity for road drainage - road drainage, Necessity for Road Drainage: ...

Necessity for Road Drainage: Poor drainage can cause damage to the various components of a road in the following manner: (a) Water can enter the various pavement layers th

Bituminous concrete, Bituminous Concrete: Bituminous Concrete (BC) is...

Bituminous Concrete: Bituminous Concrete (BC) is a hot-mix superior type of bituminous surfacing, having a low voids (3-5 per cent), good durability high imperviousness and g

Major differences between sureties and security, Question What are majo...

Question What are major differences between sureties and security ? Answer During construction contracts, if a contractor fails to carry out works, employer would e

Bending moments& shear force, calculate bending &shear force of 16kn/m and ...

calculate bending &shear force of 16kn/m and draw the shear force and bending moment diagrams

What is codal provisions, According to National Building Code (Sp:7 1970), ...

According to National Building Code (Sp:7 1970), the differential settlement shall be kept within the limits to which the superstructure can accommodate itself without harmful dist

Harbour layout, Harbour Layout: A harbour has the following constitue...

Harbour Layout: A harbour has the following constituent parts: (a)        An entrance channel, 100-300 m wide (b)       A turning basin, dia 400-600 m (c)        A b

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:

Mechanics, What is the parallelogram law of force and prove it?

What is the parallelogram law of force and prove it?

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