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

Survey, Methods of orientation,Principles of resection

Methods of orientation,Principles of resection

Integration of the strain settlement, All soils subjected to stress undergo...

All soils subjected to stress undergo strain. This will be taking place within the soil skeleton. This strain is caused by rolling, slipping, sliding and crushing at the particle c

Define the cost of shock transmission unit, Define the Cost of shock transm...

Define the Cost of shock transmission unit? There is a keen competition among the few STU manufacturers. For the second Bassein Creek Bridge, the average cost of two STUs of ca

Distance between concrete columns in 5 story building, distance between con...

distance between concrete columns in 5 story building and if there is distance 15 feet than what should be the column size and how many bars and diameter of each bar ?

Determine the magnetic declination at a place, Example : Determine th...

Example : Determine the declination at a place, if at noon the magnetic bearing to the sun is (a) 358° (b) 185° Solution: (a) Referring to given figure (a) since the ma

Angle measurment, calculating included angle and bearing

calculating included angle and bearing

Planning of water transport facilities, Planning of Water Transport Facilit...

Planning of Water Transport Facilities: Definition of Terms In water transport system, a number of terms are used. It is necessary for a civil engineer to know the pr

Deflections of bars, how do one uses the Macauleys model to find deflection...

how do one uses the Macauleys model to find deflections of bars

Explain about viscous flow loss, Q. Explain about Viscous flow loss? Ab...

Q. Explain about Viscous flow loss? Absorptive material comprises interconnected voids and pores into which sound energy will propagate. When sound waves pass throughthe materi

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