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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)?
The second stage of the design process is to evaluate the oxygen requirement for the organism. This is necessary so that we can establish if the vessel we construct will be capable
Ac circuit having rl rc rlc. Series
Thermal Conductivity The amount of heat passing throughout unit cross-section of a solid material in unit time for unit thermal gradient is termed as thermal conductivity. The
The joint bevels shall be prepared in accordance with the registered and approved weld procedure. Internal and external surfaces to be welded shall be clean and free from paint, o
Applications and Disadvantages of Electro Chemical Machining Disadvantage of Electro Chemical Machining 1. The tools are more difficult to design. 2. Initial cost is hi
Fourth Gear Position: When gear M4 on the main shaft is in mesh with gear C4 on the countershaft then this is known as fourth gear position. The free gear M4 rotates with the
a) Determine a real root of the equation cosx = 3x-1 correct to three decimal places using Iteration method. b) Detremine the real root of the equation logx - cosx =0 by Newton
Q. Alignment of piping flanges? Alignment of piping flanges shall be in accordance with ASME B16.5. This code specifies that: • Flange centerline misalignment must be within
Function Phase: Steps: 1. To identify the functions. To identify the functions regarding to the problem in radial drilling machine. Our project focus on the create an a
define moment of inertia
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