Sewerage and Sewage Treatment

Name: Sewerage and Sewage Treatment
Author: Babbitt, Harold E. (Harold Eaton)

Babbitt, Harold E. (Harold Eaton)

Sewage disposal; Sewerage

17. Dry Weather Flow. 18. Methods for Predicting Population.
   19. Extent of Prediction. 20. Sources of Information on
   Population. 21. Density of Population. 22. Changes in Area.
   23. Relation between Population and Sewage Flow. 24.
   Character of District. 25. Fluctuations in Rate of Sewage
   Flow. 26. Effect of Ground Water. 27. Résumé of Method for
   Determination of Quantity of Dry weather Sewage. QUANTITY OF
   STORM WATER. 28. The Rational Method. 29. Rate of Rainfall.
   30. Time of Concentration. 31. Character of Surface. 32.
   Empirical Formulas. 33. Extent and Intensity of Storms.         24–50


                               CHAPTER IV

                          HYDRAULICS OF SEWERS

 34. Principles. 35. Formulas. 36. Solution of Formulas. 37. Use
   of Diagrams. 38. Flow in Circular Pipes Partly Full. 39.
   Sections Other than Circular. 40. Non-Uniform Flow.             51–77


                                CHAPTER V

                       DESIGN OF SEWERAGE SYSTEMS

 41. The Plan. 42. Preliminary Map. 43. Layout of the Separate
   System. 44. Location and Numbering of Manholes. 45. Drainage
   Areas. 46. Quantity of Sewage. 47. Surface Profile. 48. Slope
   and Diameter of Sewers. 49. The Sewer Profile. DESIGN OF A
   STORM-WATER SEWER SYSTEM. 50. Planning the System. 51.
   Location of Street Inlets. 52. Drainage Areas. 53.
   Computation of Flood Flow by McMath Formula. 54. Computation
   of Flood Flow by Rational Method.                               78–98


                               CHAPTER VI

                              APPURTENANCES

 55. General. 56. Manholes. 57. Lampholes. 58. Street Inlets.
   59. Catch-basins. 60. Grease Traps. 61. Flush-tanks. 62.
   Siphons. 63. Regulators. 64. Junctions. 65. Outlets. 66.
   Foundations. 67. Underdrains.                                  99–126


                               CHAPTER VII

                       PUMPS AND PUMPING STATIONS

 68. Need. 69. Reliability. 70. Equipment. 71. The Building. 72.
   Capacity of Pumps. 73. Capacity of Receiving Well. 74. Types
   of Pumping Machinery. 75. Sizes and Descriptions of Pumps.
   76. Definitions of Duties and Efficiency. 77. Details of
   Centrifugal Pumps. 78. Centrifugal Pump Characteristics. 79.
   Setting of Centrifugal Pumps. 80. Steam Pumps and Pumping
   Engines. 81. Steam Turbines. 82. Steam Boilers. 83. Air
   Ejectors. 84. Electric Motors. 85. Internal Combustion
   Engines. 86. Selection of Pumping Machinery. 87. Costs of
   Pumping Machinery. 88. Cost Comparisons of Different Designs.
   89. Number and Capacity of Pumping Units.                     127–163


                              CHAPTER VIII

                          MATERIALS FOR SEWERS

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Sewerage and Sewage Treatment

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