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

Define latitude - transportation, Define Latitude - Transportation Lati...

Define Latitude - Transportation Latitude of a line is the distance that the line extends in a north or south direction. A line that runs towards north has positive latitude; a

Utilisation of buoyancy effect, Q. Utilisation of Buoyancy Effect? Subm...

Q. Utilisation of Buoyancy Effect? Submerged part of the substructure will be subjected to buoyancy effect. The uplift pressure from the ground water can be utilised by constru

Verify the grain specific gravity, Verify the grain specific gravity In...

Verify the grain specific gravity In a specific gravity test, the weight of the dry soil taken is 0.66 N. The weight of the pyknometer filled with this soil and water is 6.756

Duration activity for cast-in-place foundation formwork, A concrete contrac...

A concrete contractor historical records show that the construction duration for a cast-in-place foundation formwork is 1,000-SF/crew-day. Determine the number of days a 200,000-SF

Bituminous Macadam, What is the difference between Dense bituminous Macadam...

What is the difference between Dense bituminous Macadam and bituminous macadam

Hybridisation, Why hybridisation never take in isolated atom

Why hybridisation never take in isolated atom

Trusses, Determine the support reactions for the truss shown below

Determine the support reactions for the truss shown below

Need survey paper, Write a Survey Paper: Write between 7 to 10 pages a...

Write a Survey Paper: Write between 7 to 10 pages a survey paper in one of the following topic :  ( The Future of HCI. )  For the paper the font size should be 12 points

Void ratio, why void ratio is greater for fine gained soil then course grai...

why void ratio is greater for fine gained soil then course grained soil.

Self compacting concrete, what will be the w/c ration and cement/fly ash ra...

what will be the w/c ration and cement/fly ash ration for the particular mix design

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