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Drinking Water Engineering and Science An interactive open-access journal
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Volume 5, issue 1
Drink. Water Eng. Sci., 5, 9–14, 2012
https://doi.org/10.5194/dwes-5-9-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
Drink. Water Eng. Sci., 5, 9–14, 2012
https://doi.org/10.5194/dwes-5-9-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

  06 Jun 2012

06 Jun 2012

A new model for the simplification of particle counting data

M. F. Fadal1, J. Haarhoff1, and S. Marais2 M. F. Fadal et al.
  • 1Department of Civil Engineering Science, University of Johannesburg, South Africa
  • 2Process Technology Department, Rand Water, South Africa

Abstract. This paper proposes a three-parameter mathematical model to describe the particle size distribution in a water sample. The proposed model offers some conceptual advantages over two other models reported on previously, and also provides a better fit to the particle counting data obtained from 321 water samples taken over three years at a large South African drinking water supplier. Using the data from raw water samples taken from a moderately turbid, large surface impoundment, as well as samples from the same water after treatment, typical ranges of the model parameters are presented for both raw and treated water. Once calibrated, the model allows the calculation and comparison of total particle number and volumes over any randomly selected size interval of interest.

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