سال انتشار: ۱۳۸۸

محل انتشار: اولین کنفرانس بین المللی تصفیه فاضلاب و بازیافت آب، فناوری ها و یافته های نو

تعداد صفحات: ۷

نویسنده(ها):

SE.A Moosavi Rad – Faculty of Civil Engineering, K.N.Toosi University of Technology
S.A Mirbagheri – Faculty of Civil Engineering, K.N.Toosi University of Technology
T Mohammadi – Faculty of Chemical Engineering, School of Engineering, Iran University of Science and Technology

چکیده:

Electroplating industries discharge one of the most hazardous industrial wastewaters containing heavy metals. So, there is a growing interest in developing methods for the treatment and recovering water and metals from plating industry effluent. In this study, electroplating wastewater containing chromium (VI) has been treated by means of reverse osmosis (RO) membra-Pne on a pilot plant. The chromium (VI) concentration in the untreated wastewater was 16 ppm. After the treatment, the concentration in the treated water was below 0.1 ppm which is the Iranian National Discharge Standard. The influences of concentration polarization and fouling phenomena were studied in the time interval of 24 h. Therefore, the influence of transmembrane pressure was investigated as the main operating variable. The study shows that increasing transmembrane pressure cause to increase the permeate flow rate and decrease the metal concentration in the permeate flow.