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Sedimentation Tank Design & Particle Removal Analysis

This lecture addresses the design of a sedimentation tank for particle removal in the town of San Joes. It covers the calculation of percentage removal for particles with various settling velocities and determining surface area and tank dimensions based on flow rate and overflow rate. Additionally, it explores finding the depth required for a detention time of 95 minutes.

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Sedimentation Tank Design & Particle Removal Analysis

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  1. Philadelphia University Faculty of Engineering Department of Civil Engineering First Semester, 2013/2014 Question Lecture 7:

  2. The town of San Joes has an existing horizantal flow sedimentation tank with an overflow rate of 17m3/d.m2 and wishes to remove particles that have settling velocity of 0.1mm/s, 0.2 mm/s and 1 mm/s. What is the percentage removal should be expected for each particle in an ideal sedimentation tanks. P = 100 (Vs/Vo)

  3. Determine the surface area of a setting tank for the flow rate of 0.5m3/s with a typical overflow rate of 40.3 m3/d.m • Find the tank dimensions • Find the depth? For a detention time of 95 minutes

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