سال انتشار: ۱۳۹۲
محل انتشار: کنفرانس بین المللی عمران، معماری و توسعه پایدار شهری
تعداد صفحات: ۱۰
نویسنده(ها):
Ensiye Fadaei – Corresponding Author, Master of Science, Environmental Engineering, University of Birjand
Alireza pourkhabbaz – The Professor assistance, Department of Environmental, University of Birjand
Naser mehrdadi – The Professor assistance, Department of Environmental Engineering, University of Tehran
Mohammad javad Amiri – The Professor assistance, Department of Environmental Planing and Management, University of Tehran

چکیده:

Chromium is considered as one of the important environmental pollutants due to its toxicity considered as water contaminant that may disturb metabolic activity. In the present investigation,removal of Cr (VI) using Elaeagnus angustifolia fruit powder has been studied. In the present study, adsorption of dissolved Chromium (VI) onto Elaeagnus angustifolia fruit powder has been investigated and the effect of contact time, pH value, initial concentration of dissolved Chromium and amount of adsorbent on the adsorption of Cr by the mentioned adsorbents were investigated. Results showed that the adsorption process was highly dependent on pH. Maximum Cr removal was achieved when the pH of the mixture fell within 2. Adsorption test results revealed that Cr adsorption on the studied adsorbents could be better described by Longmuir isotherm. Maximum Cr removal efficiencies were obtained by Elaeagnus angustifolia fruit powder 70 mg/g.Based on Cr (VI) removal efficiency it is concluded that jujube powder could be considered one of the natural and inexpensive adsorbent to remove Cr (VI) from wastewater.