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

STRUCTURAL DYNAMICS, Consider a diver weighing 200 Ib at the end of a divin...

Consider a diver weighing 200 Ib at the end of a diving board that cantilevers out 3 ft. The diver oscillates at a frequency of 2 Hz. What is the flexural rigidity E I of the divin

Total volume of soil that excavated from the borrow area, Project specifica...

Project specifications require a relative compaction of 95% (modified Proctor).  Construction of a highway embankment requires 10,000-yd 3 of fill.  The borrow soil has an in-situ

Settlement due to reduction in volume of soil, Q. Settlement due to Reducti...

Q. Settlement due to Reduction in Volume of Soil? The weight of the structure causes reduction in volume of soil due to expulsion of pore water from the voids. This reduces the

What is rail lubricators, Q. What is Rail Lubricators? 1. P & M type of...

Q. What is Rail Lubricators? 1. P & M type of lubricators - These lubricators can be used for lubrication of FF rails as well as BH rails. 2. Elgi grease pump - Elgi Bucket

Determine the loss of fluid energy, Determine the loss of fluid energy as 3...

Determine the loss of fluid energy as 310 gallons per minute (gpm) of water flows through 1,000 ft of 4 inch, schedule-40 welded and seamless steel pipe. The fluid temperature is 5

Explain flocculation, Explain Flocculation Most important factor ef...

Explain Flocculation Most important factor effecting particle removal efficiency objective - to bring particles into contact so that they will collide, stick together

Calculate the amount of concrete - construction management, An electrical c...

An electrical contractor is preparing to place the duct bank concrete encasement for the high voltage feeders between manhole # 11 and # 12, total distance is 323-ft. The duct bank

Define truss analysis-stability, Define Truss analysis-stability   ...

Define Truss analysis-stability   Identify whether a truss is determinate or indeterminate. Identify if the truss is stable or unstable   m = number of membe

What is admixtures, Q. What is Admixtures? These are the substance whic...

Q. What is Admixtures? These are the substance which are added to the concrete to improve its qualities either its placing or in its subsequent performance. An admixture may be

W.M.M., What is W.M.M. roads? Where its used ?

What is W.M.M. roads? Where its used ?

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