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Drinking Water Engineering and Science An interactive open-access journal

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Drink. Water Eng. Sci., 5, 47-57, 2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
03 Sep 2012
Accumulation and modeling of particles in drinking water pipe fittings
K. Neilands, M. Bernats, and J. Rubulis Riga Technical University, Department of Water Engineering and Technology, Latvia
Abstract. The effect of pipe fittings (mainly T-pieces) on particle accumulation in drinking water distribution networks were shown in this work. The online measurements of flow and turbidity for cast iron, polyethylene and polyvinyl chloride pipe sections were linked with analysis of pipe geometry. Up to 0.29 kg of the total amount mobilized in T-pieces ranging from DN 100/100–DN 250/250. The accumulated amount of particles in fittings was defined as J and introduced into the existing turbidity model PODDS (prediction of discoloration in distribution systems) proposed by Boxall et al. (2001) which describes the erosion of particles leading to discoloration events in drinking water network viz sections of straight pipes. However, this work does not interpret mobilization of particles in pipe fittings which have been considered in this article. T-pieces were the object of this study and depending of the diameter or daily flow velocity, the coefficient J varied from 1.16 to 8.02. The study showed that pipe fittings act as catchment areas for particle accumulation in drinking water networks.

Citation: Neilands, K., Bernats, M., and Rubulis, J.: Accumulation and modeling of particles in drinking water pipe fittings, Drink. Water Eng. Sci., 5, 47-57,, 2012.
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