J Sargolzaei - Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
M . T Hamedmosavian - Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

This plan is to refine and recycle the sewage of sand filters reverse washing of Mashhad power plant. By designing a 200 cubic meter precipitation pool, 85 percent of the turbidity of the water is removed after washing the filter; the recycled water is then transferred to a water de-carbonating unit to be reused. So by recycling the power plant sewage, it is somehow possible to make up for the high water consumption of the power plant and by introducing other ways of physical refining it is possible to pave the way for improvement of refining other sewage plants.

Precipitation pool, Sediment settlement, Reverses washing, Calcium carbonate, Reuse water