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A water treatment plant is to process 30,000 m3/d of raw water. A tapered flocculation basin having four flocculators with velocity gradients 40/sec, 30/sec, 20/sec and 10/sec is to be designed with cross-flow paddle units. The basin may be a maximum of 10 m wide and 4 m deep to join to the settling basin. The optimum Gt value for this system was found to be 3.5 × 104 at 20 °C. Suppose that every compartment is square in shape. Verify:
(i) Basin dimensions
(ii) Draw the plan and cross sections of the flocculator with dimensions
(iii) Power needs in each compartment
The temperatre of an air bubble while rising from bottom to surface of lake remains constant but its diameter is doubled . if the pressure is equivalent to h meter of mercury colum
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Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
If an electron has spin quantum number of +1/2 and a magnetic quantum number of -1 , it cannot be presented in an: (1) d -orbital (2) f -orbital (3) p -orbital (4)s-
Consumer testing Consumer testing is the next crucial aspect in product development. Consumer testing can be done in three ways: 1. In-house laboratory testing 2. Ho
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Initially 5 mol of an ideal gas with Cv,m=12.5 J K^-1 mol^-1 are at a volume of 5 dm^3 and a temperature of 300K. If the gas is heated to 373 K and the volume changed to 10 dm^3, w
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