Abstract
Based on the settling data of raw water suspension, a methodology to compute the residual concentration of solids through a tube settler is developed herein. Laboratory settling data has been employed to illustrate the numerical application of the methodology to work out the effluent concentration of solids through a given tube settler carrying the raw water suspension at a given rate.
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References
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Notations
Notations
- L :
-
Length of tube settler
- 2R :
-
Tube diameter
- θ :
-
Inclination of the tube with horizontal
- Q :
-
Flow rate
- w :
-
Width of the vertical strip
- \( {\alpha}_i \) :
-
Distance of the central line of the i-th strip from the vertical diameter of the tube
- \( {v}_s \) :
-
Settling velocity of particles
- \( {f}_{y,\alpha } \) :
-
Flow velocity at (y,α) of tube cross section
- \( {u}_{y,\alpha } \) :
-
Profile velocity at (y,α) of tube cross section
- \( {C}_s \) :
-
Concentration of solid particles with settling velocity
- \( {v}_{ci} \) :
-
Critical velocity for particles flowing through the i -th strip
- \( {y}_{1i} \) :
-
‘y’-coordinates of the particles entering through the i-th strip and just reaching the bottom travelling through the entire length L of the tube settler
- \( {y}_{2i} \) :
-
Particle entering through \( {y}_{1i} \) and settles to the bottom at \( {y}_{2i} \)
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De, A. (2017). Residual of the Assorted Solids Through Shallow Depth Settler. In: Sedimentation Process and Design of Settling Systems. Springer Transactions in Civil and Environmental Engineering. Springer, New Delhi. https://doi.org/10.1007/978-81-322-3634-4_16
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DOI: https://doi.org/10.1007/978-81-322-3634-4_16
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