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Effects of pipe materials on biofouling under controlled hydrodynamic conditions

Abstract : Experiments were carried out to investigate pipe material impacts on biofouling, at high effluent concentration levels and under controlled hydrodynamic conditions. Two velocities (0.4 and 0.8 m s-1) were used to monitor biofilm growth on polyethylene (PE) and polyvinylchloride (PVC) pipe walls, respectively. These conditions were established based on wastewater irrigation practices. A decrease in biomass is observed after 49 days of experiments for both velocities and may be related to biofilm detachment. Biofilm growth is greater at 0.8 m s-1. For both velocities, PVC is less sensitive to biofilm growth than PE. Pipe straightness plays a primary role in biofilm growth control. This effect is more significant than pipe surface characteristics (roughness, hydrophobic/hydrophilic properties).
Keywords : PVC
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Submitted on : Sunday, December 17, 2017 - 9:22:31 PM
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S. Gamri, A. Soric, S. Tomas, B. Molle, Nicolas Roche. Effects of pipe materials on biofouling under controlled hydrodynamic conditions. Journal of Water Reuse and Desalination, 2016, 6 (1), pp.167-174. ⟨10.2166/wrd.2015.037⟩. ⟨hal-01665987⟩



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