Design a 10 unit rapid sand filter system, Civil Engineering

Assignment Help:

Design a 10 unit rapid sand filter system for a flow of 6.3 MGD with a filtration rate of 2 gpm/sq ft. and an L: W ratio of 1.3.  

Design flow (Q) = 6.3 MGD = 6.3x106

gpd = 4375 gpm

Assume filtration rate of 2 gpm/ft2

 Total filter area required = 4375 gpm/2 gpm/ft2

 = 2187.5 ft2

 Total of 10 filter units (but design is based on 9 filters being in operation and 1 in backwashing).  In a problem you will be trying to match this with the answer

Area required per each filter unit  = 2187.5/9 =  243 ft2

L:W ratio is 1.3  so LW = 1.3WxW = 1.3W2

 = 243   --- this gives W = 13.7 ft and L

= 17.8 ft.


Related Discussions:- Design a 10 unit rapid sand filter system

Calculate the surface dimensions of sedimentation tank, Calculate the surfa...

Calculate the surface dimensions of Sedimentation Tank A treatment plant upgrade calls for design of sedimentation basins to handle a flow rate of 8 MGD. The basins are for a T

Determine about the post-tensioned concrete, Determine about the post-tensi...

Determine about the post-tensioned concrete The transfer stage may take place after a long time from the casting of concrete, in the case of post-tensioned,members, enabling th

#titl, Two readings ie 1.64m and 0.73m were taken during leveling procedure...

Two readings ie 1.64m and 0.73m were taken during leveling procedure to define the slope of a centerline of a bridge at points A and B. If distance AB=50 m, find the slope of line

Explain fluid mechanics or properties – viscosity, Explain Fluid Mechanics ...

Explain Fluid Mechanics or Properties – Viscosity A measure of a fluid's resistance to flow when acted upon by an external force such as pressure or gravity. Also termed, "Abso

Ropeways, Ropeways: The system of ropeways consists of : (a) a cabl...

Ropeways: The system of ropeways consists of : (a) a cable suspended between towers, and (b) cars which move on the cable. Case with capacity upto 20 passengers is us

Determine the basic concepts of prestressing, Determine the Basic Concepts...

Determine the Basic Concepts  of Prestressing In the year 1904, Freyssinet tried to introduce prestresses in concrete to resist stresses developed due to external loads. Later,

Lintel, Classification of lintels

Classification of lintels

Theodolite, definion of local attraction and correction

definion of local attraction and correction

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