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2. Assume that the river has been selected as the source of raw water for the 2.0mgd demand.
a. Surface water has low alkalinity, high turbidity. The distribution system is cast iron pipe. What's the concern with using alum (Al2(SO4)3) as the coagulant. What other chemical could be used?
b. A slow sand filter will follow the coagulation-flocculation-sedimentation. The organic content in the raw water supports a biofilm on the filter surface. How might this reduce the disinfectant dosage? What text Figure shows this?
c. The 4' thick filters run q=500 gpd/ft2. Find the total area of filter surface required to treat the 2.0 mgd. Also compute the hydraulic residence time in the filter.
d. The filtered water still has traces of ammonia and dissolved organics. Calcium hypochlorite Ca(OCl)2 is used for disinfection. What's the advantage, what's the potential problem with using the hypochlorite rather than using ultraviolet (UV)?
Illustrate the various Functions of clutch and also explain the Principle of frictions Clutch ? What is the requirement of Transmission System & Explain the Arrangemnet for P
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HOW TO GO ABOUT WRITING A TERM PAPER TITLED: APPLICATION OF TURBULENT FLOW IN MECHANICAL ENGINEERING.
Windmills were traditionally used for processing grains, later they started to be used for electricity production as well. Windmills can also be used to pump water.
Q. What do you understand by Myocardial Oxygen Uptake? VO 2 max = Maximum C.O x Maximum A-V Oxygen difference. It is the maximum amount of oxygen that the person can use du
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Mash stitch welding An overlap of about 1.15 mm is kept and then the plates are squeezed flash by application of pressure at hot condition. Mash stitch welding is used in the
what is non sercular torsion
Evaluate maximum shear stress: Derive equation subjected to combined bending and torsion for finding out maximum shear stress and its equivalent twisting moment.
Marshalling Yard: Function The marshalling yard is a facility where goods wagons are sorted out for being dispatched to different stations. After being sorted out, th
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