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

Fluid Mechanics, A 4-m-long, 6-cm-diameter cylinder placed normal to the fl...

A 4-m-long, 6-cm-diameter cylinder placed normal to the flow is used to measure the velocity of an air stream. If a force of 50 N is measured, the air velocity is nearest (for air

Question, The state of stress at a point is given by the stress components ...

The state of stress at a point is given by the stress components sx = 70 MPa, sy = 10 MPa and ?xy = - 40 MPa. Using Mohr''s circle, find (i) Principal stresses, and (ii) Principal

Statics, Determine the moment of inertia with respect to the x axis for the...

Determine the moment of inertia with respect to the x axis for the shaded area shown (Figure 2) . The dimension is a = 2.00m

Modulus of elasticity of light-weight concrete, Modulus of elasticity of li...

Modulus of elasticity of light-weight concrete The modulus of elasticity of light-weight concrete is about 50 to 55% of that of normal-weight concrete. The loss of prestresses

Uses of alloys in daily life , What are the uses of alloys in daily life an...

What are the uses of alloys in daily life and how are alloys made? Ans) Alloying is not always done to make a 'superior' material, but to produce materials having a desired requ

Unsealed contraction joints in concrete pavement, Unsealed contraction join...

Unsealed contraction joints in concrete pavement For unreinforced concrete pavement, contraction joint is an approximately 3mm wide groove with a depth of about one-third to o

Define continuity equation, Define Continuity Equation Mass in fluid sy...

Define Continuity Equation Mass in fluid systems is always conserved.   Ρ 1 v 1 = ???? 2 v 2   If the fluid density is the same at both points in the flow, the continui

Cavities under structures., This is the title for my thesis for masters in ...

This is the title for my thesis for masters in structural engineering. Is it possible to make for me the literature review? I already have my references.

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