Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. What is Rapid Sand Filter?
A Rapid Sand Filter is a water treatment plant that includes provision for pre treating the water by coagulation and sedimentation for settlement of suspended solids before filtration with sterilization in the final process.
Rapid Sand Filter consists of layers of course sand with an effective size of 0.35 to 0.50 mm is used. The depth of sand layer is 0.60 to 0.75m. This sand is supported on a gravel layer of depth 0.45m in 5 to 6 layers. The effective size of gravel is 2 to 50 mm. Gravel is under by an under drainage system consisting CI central manifold with strainers & lateral.
Plan area of these tank s is 10 to 80 m2 or 6 x 8 m or 8 x 10 m. Rate of filtration of these filter is 3000 to 6000 Lit. /hrs/ m2. The cleaning of Rapid Sand Filter is effected by reversal flow. First air is passed at the rate of 600 - 900 lpm/ m2 at the pressure of 0.35 kg/cm2 for 5 minutes in the reverse direction. After this water is passed which removes the dirt by bubbling action. Water required for back wash 300 to 900 Lit. / hrs/ m2. Cleaning must be done after every 1 to 3 days.
how to draw an elipse
A pile is driven in uniform clay of large depth. The clay has unconfined compression strength of 90 kN/m 2 . The pile is 30 cm diameter and 6 m long. Verify the safe frictional res
Improvements to Public Bus Transport: Since buses carry a large number of passengers, improvements in bus transport is a cheap solution. Some of the possible improvements are
Q. Write a short note on Economic Span of a Bridge? The span for which the total cost of bridge will be minimum is known as the economic span. The ratio of Cost of super str
Steps to determine the hydraulic horsepower (whp) for pump problems: 1) Determine (h A ) by rearranging the Bernoulli equation. 2) Apply (h A ) into the equation found i
Question What is main dissimilarity among cement plaster , cement render and cement screed ? Under what state each of above can be used? Answer Purpose of plaster
1. The cantilever beam-like structure shown below is modeled using a 2 x 10 mesh of rectangular four-node plane stress elements of equal size. Do the following and compare with
Explain Residential building ?
Q. Kicker of reinforced concrete cantilever retaining walls located at the position of largest moment and shear force - why? Generally for reinforced concrete cantilever retai
Determine what is meant by normally consolidated clay stratum and over-consolidated clay stratum. Draw typical results of consolidation test data to a suitable plot relating the vo
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd