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

Levelling, the cooke''s reversible level

the cooke''s reversible level

Mathcad prime2.0, I want to ask about mathcad prime 2.0, when I want to sav...

I want to ask about mathcad prime 2.0, when I want to save my work it shows that I can''t save it because Excel is busy ,, what I have to do to fix this problem ??

What do you mean by shallow gradient of pipes, Q. Colebrook White formula s...

Q. Colebrook White formula suitable for shallow gradient of pipes? Manning's Equation is commonly used for rough turbulent flow while Colebrook-White Equation is adopted for t

Calculate the concrete tensile strength, Calculate the concrete tensile str...

Calculate the concrete tensile strength A 6 in. by 12 in. concrete cylinder resisted a transverse force of 55,000-lbf, at 28 days, in a split tensile cylinder test. Calculate t

#survey, Ask question #chaining and rangingMinimum 100 words accepted#

Ask question #chaining and rangingMinimum 100 words accepted#

Explain the spiral curves - transportation, Explain the Spiral Curves - Tra...

Explain the Spiral Curves - Transportation A spiral is a curve of continuously changing radius. It varies from 0 degree of curvature (infinite radius) at its TS (Tangent to Spi

Determine the maximum pressure at the base of the wall, A masonry retaining...

A masonry retaining wall of trapezoidal section with the vertical face on the earth side is 1.5 m wide at the top and 3.5 m wide at the base and is 5.0 m high. It retains a sand fi

Transportatoin engineening, explain the construction while aligning roads o...

explain the construction while aligning roads on hilly areas

Passenger conveyors, Passenger Conveyors: Passenger conveyors are used...

Passenger Conveyors: Passenger conveyors are used at locations where a large concentration of passengers has to be moved from one place to another. Escalators are used to conv

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