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f not, what percent of the particles are rer

f not, what percent of the particles are rer

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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SAMPLE PROBLEM 3 A small water plant has a raw water inflow rate of 0.6m3/s. It was found through experimentation that the particles after flocculation all settle at a rate of Vp= 0.004 m/s. A proposed rectangular tank has an effective settling zone of L=20m, H=3m &W=6m. Can 100% removal be expected? If not, what percent of the particles are removed? Given: m3 0.6 m 0.005 0.6m/s 20т x бт A Vp < Vo. Therefore, not all particles will be removed. 3m 6m 20m Percent removal can be calculated by getting the ratio of particle velocity to critical settling velocity. In symbols, Vp x 100% Vo Req'd: a. 100% removal? % Removal = b. % removed if not Substituting, 0.004" Sol'n: For 100% settling, Vp > Vo. Let's check. Vp is give & we can compute Vo. % Removal = x 100% 0.005 % Removal = 80.0000% Recompute Sample Problem 3. However, make your height 6m and your width 3m.
Transcribed Image Text:SAMPLE PROBLEM 3 A small water plant has a raw water inflow rate of 0.6m3/s. It was found through experimentation that the particles after flocculation all settle at a rate of Vp= 0.004 m/s. A proposed rectangular tank has an effective settling zone of L=20m, H=3m &W=6m. Can 100% removal be expected? If not, what percent of the particles are removed? Given: m3 0.6 m 0.005 0.6m/s 20т x бт A Vp < Vo. Therefore, not all particles will be removed. 3m 6m 20m Percent removal can be calculated by getting the ratio of particle velocity to critical settling velocity. In symbols, Vp x 100% Vo Req'd: a. 100% removal? % Removal = b. % removed if not Substituting, 0.004" Sol'n: For 100% settling, Vp > Vo. Let's check. Vp is give & we can compute Vo. % Removal = x 100% 0.005 % Removal = 80.0000% Recompute Sample Problem 3. However, make your height 6m and your width 3m.
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