Author(s): Navab Daneshi; Hossein Banejad; Reza Pirtaj Hamedani; Hooshang Faraji; Vahid Rahimpour Golroodbari
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Keywords: Copper and zinc; Phosphate; Rapid sand filtration; Removal efficiency
Abstract: Presence of excessive amount of authorized copper and zinc in water and wastewater resources, always create different problems. Different methods have been developed for removal of copper and zinc. Of this achievement we used rapid sand filters. This kind of filters is extensively used for water and wastewater treatment. In this study different concentration of copper and zinc in water presence of different concentration of phosphate and in different rate of filtration are passed through filter and then the effluent is examined for present concentration of the copper and zinc, then the efficiency of the filter is evaluated for each step in this approach. The efficiency of zinc removal was lower than copper removal efficiency. The data was analyzed by creating a factorial pattern and using the analyzed variance table. The result shows that the effects of filtration rate, copper and zinc concentration in the influent and different concentration phosphate on the efficiency of the rapid sand filter for removal of copper and zinc was 99% significant.
Year: 2009