Page 42 - Fundamentals of Water Treatment Unit Processes : Physical, Chemical, and Biological

Contents—Downloadable Files

PART I Foundation

Chapter 1 Water Treatment..................................................................................................................................................... 3
TABLE CD1.2 Treatment Technology Matrix (Excerpt from Table CD1.2b)........................................................................ 7

Chapter 4 Unit Process Principles......................................................................................................................................... 57
TABLE CD4.2(a) Comparison between Finite Difference and Mathematical Solutions for Continuous Input
of Salt Starting at t ¼ 0.............................................................................................................................. 69
TABLE CD4.2(b) Solution Finite Difference Mass Balance Equation—Continuous Input (0.1 t=u 0.5) of Salt ........ 69
TABLE CD4.3 Solution Finite Difference Equation—Pulse Input (0.1 t=u 0.5) of Salt .............................................. 70

PART II Particulate Separations

Chapter 5 Screening .............................................................................................................................................................. 79

TABLE CD5.2 Bar Screen Design Based on Hydraulic Criteria........................................................................................... 81
TABLE CD5.7 Microscreen Coefficient and Subsequent Use of Coefficient for Design
(Data from Envirex, 1985)—Excerpt Showing 24 Out of 40 Columns and 5 Out of 39 Rows.................. 88

Chapter 6 Sedimentation ....................................................................................................................................................... 95
TABLE CDEx6.1 Determination of Maximum Particle Size for Stokes’ Law to be Applicable ......................................... 97
TABLE CD6.5 Materials Balance Calculations for Area of a Final Settling Basin............................................................ 112

Chapter 7 Grit Chambers .................................................................................................................................................... 135
TABLE CD7.1 Solution for Example 7.1—Shield’s Equation for Scour in Grit Chamber................................................ 137
TABLE CD7.2 Spreadsheet Showing Calculation of Proportional Weir Sizing and Flow................................................. 138
TABLE CD7.3 Free Flow Ranges, Coeffcients, and Exponents for Parshall Flumes of Various Throat Widths .............. 140
TABLE CD7.4 Hydraulic Profile Calculation...................................................................................................................... 141
TABLE CD7.5 Dimensions and Capacities for Parshall Flumes......................................................................................... 143
TABLE CD7.6 Design of Rectangular Grit Chamber with Parshall Flume as Control ...................................................... 145
TABLE CD7.7 Calculated Parabolic Grit Chamber Section for Selected Parshall Flume.................................................. 147
FIGURE CD7.11 Calculation of parabolic section. ............................................................................................................. 147
TABLE CD7.14 Airflow and Power Calculations for Aerated Grit Chamber..................................................................... 157

Chapter 8 Flotation.............................................................................................................................................................. 163
TABLE CD8.2 Particle Rise Velocities as Function of Number of Bubbles Attached, B .................................................. 173
TABLE CD8.3 Calculation of Required Saturator Pressure to Float Solids for Stated Conditions by Mass Balance ....... 175

PART III Microscopic Particles

Chapter 9 Coagulation......................................................................................................................................................... 191
TABLE CD9.6 Distribution of Aluminum Ion Hydrolysis Species with Varying pH........................................................ 208
TABLE CD9.7 Determining the Distribution of Ferric Iron Hydrolysis Species with Varying pH ................................... 209

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