Page 427 - Water and wastewater engineering

10-44 WATER AND WASTEWATER ENGINEERING

10-2. Use a scale drawing to sketch a vector diagram that shows a plate settler with one
plate located at half the depth of the tank will remove 100 percent of the particles that
enter with a settling velocity equal to one-half that of the overflow rate.

10-3. Describe design remedies for the following problems in a settling tank: jetting of the
influent, density currents from cooler or warmer water, waves on the settling basin.
10-4. What design alternative is available to increase the Froude number of a horizontal-
flow rectangular sedimentation basin?

10-9 REFERENCES
AWWA (1990) Water Treatment Plant Design, 2nd ed., American Water Works Association, Denver,
Columbus, McGraw-Hill, New York, pp. 116, 125.
Camp, T. R. (1936) “A Study of the Rational Design of Settling Tanks,” Sewage Works Journal, vol. 8,
no. 9, pp 742–758.
Camp, T. R. (1946) “Sedimentation and the Design of Settling Tanks,” Transactions of the American
Society of Civil Engineers, vol. 111, p. 895.
Davis, M. L. and D. A. Cornwell (2008) Introduction to Environmental Engineering, McGraw-Hill,
New York, pp. 269, 281.
Eckenfelder, W. W. (1980) Industrial Water Pollution Control, McGraw-Hill, New York, 1989, p. 61.
GLUMRB (2003) Recommended Standards for Water Works, Great Lakes–Upper Mississippi River
Board of State and Provincial Public Health and Environmental Managers, Health Education
Services, Albany, New York, pp. 34–35.
Kawamura, S. (2000) Integrated Design and Operation of Water Treatment Facilities, 2nd ed., John
Wiley & Sons, New York, pp. 139–189.
Metcalf and Eddy (2003) Wastewater Engineering: Treatment and Reuse, 4th edition, McGraw-Hill,
Boston, MA, p. 379.
MWH (2005) Water Treatment: Principles and Design, John Wiley & Sons, Hoboken, New Jersey,
pp. 811–814, 824–829.
Newton, I. (1687) Philosophiae Naturalis Principia Mathematica.
Pierpont, J. W. and M. Alvarez (2005) “ Optimizing Ballasted Sedimentation for Organics-Laden Surface
Water,” Opflow, JUL, p. 15.
Reynolds, O. (1883) “An Experimental Investigation of the Circumstances Which Determine Whether
the Motion of Water Shall Be Direct or Sinuous and the Laws of Resistance in Parallel Channels,”
Transactions of the Royal Society of London, vol. 174.
Stokes, G. G. (1845) Transactions of the Cambridge Philosophical Society, vol. 8, p. 287.
Walker, J. D. (1978) “Sedimentation,” in R. L. Sanks (ed.) Water Treatment Plant Design for the
Practicing Engineer, Ann Arbor Science, Ann Arbor, Michigan, pp. 149–182.
Willis, J. F. (2005) “Clarification,” in E. E. Baruth, (ed.), Water Treatment Plant Design, American Water
Works Association and American Society of Civil Engineers, McGraw-Hill, New york, p. 7.1–10-44.
Yao, K. M. (1970) “Theoretical Study of High-Rate Sedimentation,” Journal of Water Pollution Control
Federation, vol. 42, p. 218.