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

Concrete, What practical steps can one take to mitigate the adverse effects...

What practical steps can one take to mitigate the adverse effects in using aggregates with higher than specified flakiness index in the production of concrete

Point of virtual fixity of lateral loading for piles, Point of virtual fixi...

Point of virtual fixity and critical length of lateral loading for piles Some engineers can get confused about the difference between the two terms which are point of virtual

Explain working of ultrasonic system for concrete elements, Explain the wor...

Explain the working of Ultrasonic System for Concrete Elements? Ultrasonic methods can be used underwater for overall assessment of the strength of concrete based on sound velo

Show the functions of diaphragm walls, Q. Show the Functions of diaphragm w...

Q. Show the Functions of diaphragm walls? The functions of diaphragm walls are as follows: (i)  It is designed to maintain soils during the construction of underground

Explain rigging , In sailing, the ropes used to move the sails around so th...

In sailing, the ropes used to move the sails around so the boat will move in the right direction when the wind blows.

Basic considerations governing selection of road alignment, Basic Considera...

Basic Considerations Governing Selection of Road Alignment: The following considerations shall be kept in view in selecting the road alignment: Roads in Plain Areas (a)

Equivalent static load earthquake force analysis method, Equivalent static ...

Equivalent static load method After the earthquake in Messina-Reggio Italy 1908, a team composed of engineers were sent on duty to study deteriorated buildings and investigate

Urban transport systems, Urban Transport Systems: Urban Transport P...

Urban Transport Systems: Urban Transport Problem Rapid urbanisation is taking place in India. The current urban population proportion of 28 per cent may reach 40 per

Determine the coordinate for point r, For the project work points (x,y) sho...

For the project work points (x,y) shown in the figure the bearing of point R is due West. The coordinate for point R is most nearly:    Solution: Determine the length o

Determine the statements about unit area or borrow pit, Determine the State...

Determine the Statements about Unit Area or Borrow Pit? Ans: I.  Sometimes called Average Depth II. Works well for volumes for building sites and surface mines III. Needs

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