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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)?
what is coriolis component of acceleration?
Basic Concep: Proper care and maintenance are essential for trouble free operation and optimum performance of the motorcycle. A quality service at regular intervals ensures that e
Three Particle System Suppose we have two particles of masses m 1 and m 2 already fixed in space at distance r 12 from each other. Let us bring in a third particle of
What is an open pair?
1. I have a data for displacement versus time ( graph) then I want to get the velocity and acceleration graphs from the displacement.How can I get it?
Ask question Prove maximum fluctuation of energy ?E=2ECS.
How ca I make an opc & fpc chart
Application of Drilling machine Drilling machines of dissimilar capacity and configuration are basically used for originating cylindrical holes and occasionally for enlarging t
Evaluate the magnitude, direction and position of the resultant of the system of forces (using vector method) shown in figure below.
matlab programme for carnot cycle
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