It is well-recognized that the heavy metals are among the prominent contaminants in aqueous solutions. This hazardous metal can result in a high risk contamination and causes illness. It should be mentioned that the metals also appears in wastewaters of a lot of manufacture and it can produce variety of undesirable effects. For removal of this contaminant from water many methods are used in this way. This paper investigates adsorption Sr (II) from aqueous solutions is the most important aim of this paper. A low cost adsorbent which prepared by hazelnut shell as an agricultural solid waste was used in this study. The best of our knowledge is to use solid waste as an adsorbent without converting it to activated carbon, just by simple method. Some operational conditions such as temperature, speed velocity of stirrer and dose of prepared adsorbent were investigated by some experiments. The high efficiency adsorption was achieved by this low cost adsorbent. The raw material in this research was collected from Iranian garden.
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