1 Jar tests have indicated that 80 mg/L of alum are required to coagulate water for drinking water treatment. The source water contains 180 mg/L alkalinity as CaCO3 and 10 mg/L of suspended solids. The treatment plant capacity is 0.5 m³/s. How much alkalinity remains in the water after coagulation?

1 Jar tests have indicated that 80 mg/L of alum are required to coagulate water for drinking water treatment. The source water contains 180 mg/L alkalinity as CaCO3 and 10 mg/L of suspended solids. The treatment plant capacity is 0.5 m³/s. How much alkalinity remains in the water after coagulation?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Treatment plant with capacity 50*106 l/day. This treatment plant required 20 mg/l alum. If the water alkalinity as CaCO3 is 6 mg/l. Find the yearly alum quantity and the quantity of CaO which is used as coagulant aid? Atomic weights: Al=27, O=16, H=1, C=12, Ca=40
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