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 the void ratio and specific gravity of particles, Derive the formula...

Derive the formula among soil moisture content (w), degree of saturation (S), specific gravity (G), and void ratio (e). Saturated clay has a water content of 40% and bulk specif

Principle of adding cooling pipes, Question What is key principle of a...

Question What is key principle of adding cooling pipes or yet using cold water for concrete in concreting operation? Answer These methods aim at reducing placing tem

Define the meaning of circular prestressing, Define the meaning of circular...

Define the meaning of circular prestressing In circular prestressing, tendon wires are wrapped under tension over the concrete pipes which are pre-cast. The tension in the ten

What is over vibration of fresh concrete, Q. What is Over vibration of fres...

Q. What is Over vibration of fresh concrete? For proper compaction of concrete by immersion vibrators, vibrating part of the vibrators must be completely inserted into the conc

Define the types of shock transmission unit, Define the Types of shock tran...

Define the Types of shock transmission unit? Presently two types of STUs are available in the overseas market: (a) Silicon putty based from UK and USA. (b) Oil based from

Slope protection, what is the type of slope protection that use rocks and p...

what is the type of slope protection that use rocks and put cements between those rocks??the concept is same as brick layer

Theory on the horizontal reactions of portal frames, Determine the horizont...

Determine the horizontal abutment reaction of a rectangular portal frame under increasing central concentrated load

Show the purpose of granular bedding for concrete pipes, Q. Show the Purpos...

Q. Show the Purpose of granular bedding for concrete pipes? When designing the bedding for concrete drainage pipes, granular materials are generally specified in place of soils

Sinle flumesh bound.., ADVANTAGES AND DISADVANTAGES OF SINGLE FLUMESH BO...

ADVANTAGES AND DISADVANTAGES OF SINGLE FLUMESH BOUND

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