Water‐Treatment‐System Design for Turbidity Removal.
This article is a reply.
VIEW THE ORIGINAL ARTICLEPublication: Journal of Environmental Engineering
Volume 120, Issue 4
Abstract
In this second part of the paper, optimization models for design of water treatment plants for turbidity removal are discussed. Application of the models is illustrated with a case study. The results from the case study indicate cost differences of about 16–64%, solely due to change in the influent particle size distribution (PSD), with higher cost of treatment for the influents with relatively greater fraction of fine particles. The system configuration, level of treatment, and design and operating parameters are found to be different for each influent PSD. Use of other parameters like turbidity units, suspended solids and volume average diameter are unable to explain this variation. The influence of PSD on the total cost decreases with inflow. Integration of process optimization in system optimization is justified as the different design and operating parameters are selected under each level of treatment. The cost of sludge treatment accounts to about 30–50% of the total plant cost.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Chang, J. S. (1989). “Mathematical modeling of transient behavior of deep‐bed filtration,” DEng thesis, Asian Institute of Technology, Bangkok, Thailand.
2.
Chang, S. Y., and Liaw, S. L. (1990). “Bounded implicit enumeration for wastewater treatment systems.” J. Envir. Engrg. Div., ASCE, 116(5), 910–926.
3.
Dharmappa, H. B., Verink, J., Ben Aim, R., Yamamoto, K., and Vigneswaran, S.(1992a). “A comprehensive model for cross‐flow filtration incorporating polydispersity of the influent.” J. Membr. Sci., 65(1–2), 173–185.
4.
Dharmappa, H. B., Verink, J., Fujiwara, O., and Vigneswaran, S. (1992b). “Optimization of granular bed filtration treating polydispersed suspension.” Water Res., 26(10), 1307–1318.
5.
Dharmappa, H. B., Verink, J., Fujiwara, O., and Vigneswaran, S. (1993). “Technical note: Optimal design of a flocculator.” Water Res., 27(3), 513–519.
6.
Dharmappa, H. B., and Vigneswaran, S. (1992). “Economical comparison between single stage treatment with crossflow microfiltration and conventional treatment system for different influent particle size distribution.” Proc. Int. Membrane Sci. and Tech. Conf., Nov. 10–12, Center for Membrane Science and Technology, University of New South Wales, Sydney, Australia.
7.
Dharmappa, H. B., Vigneswaran, S., Verink, J., and Fujiwara, O. (1994). “Water treatment system design for turbidity removal I. Simulation.” J. Envir. Engrg. Div., ASCE, 120(4), 900–920.
8.
Gill, P. E., Murray, W., Saunders, W. A., and Wright, M. H. (1986). User's guide for NPSOL (version 4.0): A fortran package for nonlinear programming. System Optimization Laboratory, Department of Operations Research, Stanford University, Stanford, Calif.
9.
Letterman, R. D., and Iyer, D. R. (1977). “Process model application in potable water treatment.” Proc. Engrg. Foundation Conf. on Theory, Practice, and Process Principles for Physical Separation, Pacific Grove, Calif., 667–703.
10.
Liang, A. (1982). “Technical comparison of direct filtration and contact flocculation‐filtration process,” MEng thesis, Asian Institute of Technology, Bangkok, Thailand.
11.
Perera, Y. A. P. (1982). “Comparison of performance of radial and upflow filters,” MEng thesis, Asian Institute of Technology, Bangkok, Thailand.
12.
Rossman, L. A. (1979). Computer‐aided synthesis of wastewater treatment and sludge disposal systems. Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Envir. Protection Agency, Cincinnati, Ohio.
13.
Tang, C. C., Brill, E. D. Jr., and Pfeffer, J. T. (1987). “Optimization techniques for secondary wastewater treatment system.” J. Envir. Engrg. Div., ASCE, 113(5), 952–969.
14.
Wiesner, M. R., O'Melia, C. R., and Cohon, J. L. (1987). “Optimal water treatment plant design.” J. Envir. Engrg. Div., ASCE, 113(3), 567–584.
Information & Authors
Information
Published In
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Nov 13, 1991
Published online: Jul 1, 1994
Published in print: Jul 1994
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.