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

Compaction to freshly placed concrete piles, Compaction to freshly placed c...

Compaction to freshly placed concrete piles  In general practice, reliance is placed on the self-compaction of particularly designed concrete mixes to achieve adequate compact

Non-distortional prestressing, Non-distortional Prestressing Concrete m...

Non-distortional Prestressing Concrete members deflect due to their own self weight. If prestressing force is applied in such a way that these deflections are eliminated due to

Keywords of road pavements, Keywords of Road Pavements: Pavement : T...

Keywords of Road Pavements: Pavement : That part of a road which structurally supports the vehicles travelling on a road. Flexible Pavement   : A layered system of pave

Calculate carbon intensity, how to calculate the carbon intensity (gC/MJ) f...

how to calculate the carbon intensity (gC/MJ) for gasoline ( C7H16 ) , we have the Energy Density = 32.2 MJ/L Fluid Density = 0.727 g/mL

Explain the column effective length, Explain the Column Effective Length ...

Explain the Column Effective Length 1. For a single column, the effective length is simply the unbraced length * the k factor: 2. When comparing an effective length fo

What are the conditions essential for darcy law, What are the conditions es...

What are the conditions essential for Darcy's law to be applicable for flow of water by soil ? Why is the permeability of a clay soil with flocculated structure greater than tha

Building technology 1, what are the defects in timber due to natural forces...

what are the defects in timber due to natural forces?

#survey, Ask question #chaining and rangingMinimum 100 words accepted#

Ask question #chaining and rangingMinimum 100 words accepted#

Deck that you can park a car under, I wish to build a deck that is 4.7m wid...

I wish to build a deck that is 4.7m wide and 7m long alongside my house. I need to park a car under it so there can be no supports in the middle. Attached to the wall on one side a

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