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

Bitumen, unit of kinematic viscosity

unit of kinematic viscosity

Explain the shrinkage strain of concrete, Explain the shrinkage strain of c...

Explain the shrinkage strain of concrete Shrinkage of concrete depends only on the interval of time and the moisture conditions, but is independent of the stresses in the membe

Track design for line speed improvements, The objective of this module is:-...

The objective of this module is:- For the student to identify the track design issues and there relationships that will need to be considered in the development of a feasibil

Example of magnetic dip, Example : Line AB was drawn with a magnetic ...

Example : Line AB was drawn with a magnetic bearing of 136° 45′ while the magnetic declination was 2° 30′ east In an old map. If magnetic declination is 3° 30′ west to what m

#tile.., Material for formwork and their specifications

Material for formwork and their specifications

How should reservoir floors be designed, Question In designing of servi...

Question In designing of service reservoirs, how should reservoir floors be designed to avoid leakage of water because of seasonal and shrinkage movements ? Answer I

Calculate the final volume of the compacted soil, 1. 130,000-yd 3 of banke...

1. 130,000-yd 3 of banked soil from a borrow pit is stockpiled before being trucked to the jobsite. The soil has 18% swell and shrinkage of 8%.  The final volume of the compacted

Statics - SFD & BMD Calculations, Could someone please help me with the cal...

Could someone please help me with the calculations of determining the sfd & bmd for cantilevers with udl''s, lvl''s and point loads? Also could I please have the same for ssb with

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