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

Explain the soil texture and soil structure, (a) Explain the 'Soil Texture'...

(a) Explain the 'Soil Texture' and 'Soil structure'. What are the various terms used to explain the above properties of the soil? (b) A clay sample having natural moisture conte

LEED, Need this assignment due in 10 hours

Need this assignment due in 10 hours

To make open sqare &rectangular, how to calculate the section weight for op...

how to calculate the section weight for open square tube

Testing of aggregates, Testing of Aggregates: For use in pavement, ro...

Testing of Aggregates: For use in pavement, road aggregates have to be strong, durable and of good shape. A well-graded aggregates adds to the stability of the layer. The fol

Define about the inclined borings, Define about the Inclined Borings In...

Define about the Inclined Borings Inclined  brings may also be used in exploration of  inclined strata and for the detection of weak pockets (lenses),  buried channels,  caviti

Modern marketing-integrated marketing communications, Modern marketing call...

Modern marketing calls for more than just developing a good product, pricing it attractively, and making it available to target customers. Companies must also communicate with thei

Define collisions - underwater inspection of bridge, Define Collisions - Un...

Define Collisions - Underwater Inspection of Bridge? Structural damage to underwater portions of a bridge can either be collision related or direct result of a collision. Colli

Define air chamber and surge tank, Q. Air chamber vs. surge tank in pressur...

Q. Air chamber vs. surge tank in pressurized pipelines? Air chambers and surge tanks are generally installed in water main to ease the stress on the system when valves or pumps

Residual stresses in steel after welding, Q. Residual stresses in steel aft...

Q. Residual stresses in steel after welding? Considerable residual stresses are persuaded in connecting steel members after welding operation. Local temperature of steel where

Installation of band drains, Question For drained reclamation, what wil...

Question For drained reclamation, what will significance of smear zone bring by installation of band drains ? Answer Throughout installation of band drains, smear zon

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