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1. Muddy water is treated with alum in purification process, it is termed as : -
(A): Absorption
(B): Adsorption
(C): Coagulation
(D): Emulsification
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MCQ->Muddy water is treated with alum in purification process, it is termed as : -....
MCQ->Consider the following statements : 1. Alum coagulation decreases the alkalinity of water. 2. Alum coagulation increases permanent hardness of water. 3. Alum coagulation decreases pH of water. 4. Alum coagulation produces aluminium hydroxide flocks in the flocculation process. Which of the statements given above are correct ?....
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MCQ->A water treatment plant is required to process 28800 m3/d of raw water (density = 1000 kg/m3, kinematic viscosity = 10-6 m2/s). The rapid mixing tank imparts tank a velocity gradient of 900s-1 to blend 35 mg/l of alum with the flow for a detention time of 2 minutes. The power input (W) required for rapid mixing is....
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