GATE Civil Engineering
0 votes

Sedimentation basin in a water treatment plant is designed for a flow rate of $0.2 \: m^3/s$. The basin is rectangular with a length of $32 \: m$, width of $8 \:m $, and depth of $4 \: m$. Assume that the settling velocity of these particles is governed by the Stokes’ law. Given: density of the particles $=2.5 \: g/cm^3$; density of water $=1 \: g/cm^3$; dynamic viscosity of water $=0.01 \: g/(cm.s)$; gravitational acceleration $=980 \: cm/s^2$. If the incoming water contains particles of diameter $25 \mu m$ (spherical and uniform), the removal efficiency of these particles is

  1. $51 \%$
  2. $65 \%$
  3. $78 \%$
  4. $100 \%$
in Others by (2.8k points)
retagged by

Please log in or register to answer this question.

Answer:
Welcome to GATE Civil Q&A, where you can ask questions and receive answers from other members of the community.
Top Users Sep 2020
  1. Vishwajeet Chandra

    110 Points

  2. Milicevic3306

    10 Points

1,042 questions
95 answers
26 comments
44,031 users