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  • 1 National University of Public Service, Bajcsy-Zsilinszky u. 12-14, H-6500 Baja, Hungary
  • 2 National University of Public Service, Bajcsy-Zsilinszky u. 12-14, H-6500 Baja, Hungary
  • 3 National University of Public Service, Hungária krt. 9-11, H-1101 Budapest, Hungary
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Unsuitable feed water quality causes fouling and serious decrease in membrane permeability during the operation of reverse osmosis filters, which leads to costly operation and low contaminant removal efficiency. The purpose of the experiment was to create a detailed, yet simple calculation scheme, suitable for higher education and everyday pilot experiments. The obtained formulas were calibrated against measured results, while investigating the fouling of the membranes at different iron concentrations. Pressure losses on a reverse osmosis equipment with a permeate capacity of 100 L/h were investigated for almost a year. Changes in permeability and cleaning methods were investigated with different feed water qualities.

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