The implementation of hydrodynamic model in water treatment to estimate turbidity removal

Hidayah, Euis Nurul and Karnaningroem, Nieke (2012) The implementation of hydrodynamic model in water treatment to estimate turbidity removal. International Journal of Environmental Sciences and Research, 2 (1). pp. 129-133.


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Direct evaluation of the performance and efficiency of sedimentation tanks could more costly and time consuming. Mathematical model can be a good alternative to observe the hydrodynamic in a sedimentation basin. Mathematical model was constructed from two hydrodynamic equations, namely the continuity equation and momentum equation. This research aims to study mathematical models of settling flocs patterns in rectangular sedimentation tanks based on the hydrodynamic model (HPAs Model) mathematical formulation. Research includes the formulation of mathematical models whose results will be visualized with Mathlab, the acquisition of primary data using physical models, testing the model using Mathlab with the primary data input. The result of running the program input data showed variations in settling flocs patterns in the sedimentation basin which explained that the settling zone starting from the inlet to the outlet there is a decrease of flow velocity pattern (u), Reynolds numbers (NRe), Froude numbers (NFr) and turbidity concentration (c). In addition, a decrease also occurred along with the depth of the settling basin zone. As for the pattern of flocs settling velocity (w) there was increasing from the inlet to the outlet and along with the depth of the basin. Formulation of mathematical model of settling flocs patterns can be used through parameter flow velocity pattern, the pattern of settling velocity and concentration patterns of turbidity, NRe and NFr. Simulation showed that turbidity can be removed higher than 80%. Implementation of the HPAs model still in laboratory scale and the research will continue to validate the model by using pilot scale implementation, such as in water works. Keywords: Hydrodynamic model, sedimentation tank, settling flocs

Item Type: Article
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Depositing User: Fatchullah Fatchullah
Date Deposited: 17 Apr 2020 02:22
Last Modified: 17 Apr 2020 02:22

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