A water treatment plant is designed to treat 0.25 m3/s of turbid water. Rectangular horizontal flow settling units and rapid sand filtration units are designed for the following parameters. Sedimentation Tank : (1) Detention time = 4 hrs. %3D (2) Over flow rate = 20 m/m2/d %3D (3) Length : Breadth = 4: 1 %3D Filters : (1) Number of filters = 4 %3D (2) Rate of filtration 5 m2/m/hr %3D (3) Backwash rate = 10 lUm²/s (4) Length : Breadth = 2: 1 (a) Determine the dimensions of the settling tank (b) Determine the length and breadth of the filter unit (c) Flow rate in the washwater trough, if twO troughs are provided in each filter (d) Assuming ideal conditions of settling, determine the percentage fraction of solids with settling velocity 0.1 mm/s, removed in settling tanks.

A water treatment plant is designed to treat 0.25 m3/s of turbid water. Rectangular horizontal flow settling units and rapid sand filtration units are designed for the following parameters. Sedimentation Tank : (1) Detention time = 4 hrs. %3D (2) Over flow rate = 20 m/m2/d %3D (3) Length : Breadth = 4: 1 %3D Filters : (1) Number of filters = 4 %3D (2) Rate of filtration 5 m2/m/hr %3D (3) Backwash rate = 10 lUm²/s (4) Length : Breadth = 2: 1 (a) Determine the dimensions of the settling tank (b) Determine the length and breadth of the filter unit (c) Flow rate in the washwater trough, if twO troughs are provided in each filter (d) Assuming ideal conditions of settling, determine the percentage fraction of solids with settling velocity 0.1 mm/s, removed in settling tanks.

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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