A Study on the Impact of operational Conditions in the Use of Nanofiltration Technology for Removing Arsenic from Drinking Water
سال انتشار: 1391
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,972
فایل این مقاله در 9 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
CEE06_148
تاریخ نمایه سازی: 30 آبان 1391
چکیده مقاله:
Nowadays, one of the main environmental concerns is the toxicity, caused by arsenic polluted water that could bring about many health problems to human beings such as varied cancer diseases. In natural water there is non-organic arsenic in the form tri oxi anions (arsenite), penta oxi anion (arsenate) of which concentrated large quantities have been spotted in several Iranian governorates such as east Azerbaijan, Kurdistan, and particularly in the city of Bijar. Nanofiltration technology has a good potential for integration with current water treatment plant to perform pollution control. In this paper, in an attempt to enhance the arsenic removal, both arsenite and arsenate with different concentrations feed to a nanofiltaration system. For better understanding of effects of operational conditions, different pressures applied as well as varied temperature. The maximum arsenite removal rate is about 90% at 100µg/l, 7 bar of pressure and 28°C. Moreover, Arsenate removal shows better behavior at higher initial concentration of 1000 µg/l, 7 bar of pressure and 28°C. Increasing the operational pressure has a positive effect in rejection rate. However rising the temperature deteriorated the overall Arsenic removal
کلیدواژه ها:
نویسندگان
Mudar Harfoush
Scholar researcher at faculty of environment, University of Tehran
مراجع و منابع این مقاله:
لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :