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 flood discharg, Q. A bridge is to be constructed over a strea...

Q. A bridge is to be constructed over a stream having a catchment area = 20 miles 2 partly in plains and partly in hills. Portion in hills has a length of 1.7 miles and fall of 88

Explain hardness - water softening, Explain Hardness - Water Softening ...

Explain Hardness - Water Softening 1) Hardness is used to characterize a water that does not lather well, causes a scum in the bath tub and leaves hard, white, crusty deposits

Settlement due to increasing load on surrounding soil, Q. Settlement due to...

Q. Settlement due to Increasing Load on Surrounding Soil? When any portion of the ground surface  has been loaded, it causes  the surface  of adjacent soil also to tilt and set

Explain in detail about textural classification, Explain in detail about  ...

Explain in detail about  Textural classification. Sketch neatly the Casagrande's plasticity chart indicating several aspects. How would you use it in classifying the fine graine

TIMBER PILE, ADVANTAGE AND DISADVANTAGE OF TIMBER PILE

ADVANTAGE AND DISADVANTAGE OF TIMBER PILE

Calculate the effective annual interest rate, A credit card advertises a no...

A credit card advertises a nominal rate of 18% compounded monthly. If no monthly payments are made, the effective annual interest rate is most nearly: The actual rate is, (18%

Cocrete, preparation and uses of concrete

preparation and uses of concrete

Water quality analysis, Water quality analysis: This water quality ana...

Water quality analysis: This water quality analysis presents an overview of physical characteristics of water, chemical substances that are normally present in water and vario

Indian standard codes, Indian Standard Codes All of the major countrie...

Indian Standard Codes All of the major countries like India, UK, USA, and Australia have their own standards for material standards, design procedures, testing standards, and

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