کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4909888 1427557 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Utilization of environmentally benign emulsion liquid membrane (ELM) for cadmium extraction from aqueous solution
ترجمه فارسی عنوان
استفاده از غشاء مایع امولسیونی خوش خیم (ELM) برای استخراج کادمیوم از محلول آبی
کلمات کلیدی
غشای مایع امولسیون؛ روغن سبزیجات؛ جداسازی کادمیوم؛ انحلال
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- ELM developed using environmentally benign diluent was employed for cadmium separation from aqueous solution.
- 98.9% of cadmium were successfully removed from the external phase, proving the feasibility of the ELM for cadmium separation.
- Demulsification process using ultrasonication yields 48.8% breaking efficiency in short time (5 min).

Utilization of Emulsion Liquid Membrane (ELM) for cadmium removal from aqueous solution was explored. Basically, ELM consists of 2 phases; internal and membrane phase that form the primary W/O (water-in-oil) emulsion which to be dispersed in the external phase. In this work, Aliquat 336 and Span 80 were used as carrier and surfactant, respectively whereas corn oil was used as an environmentally benign diluent in the membrane phase. Influence of operating conditions that affect ELM performance; ultrasonic power, emulsification time, treat ratio, stirring speed together with initial cadmium concentration were investigated. It was found that 20 W ultrasonic power, 12 min emulsification time, treat ratio of 1:5 and 300 rpm stirring speed were essential to achieve maximum removal efficiency (98.9%) after 15 min. The current study also exhibits the possibility of demulsification process assisted by ultrasonic probe. 48.8% emulsion breaking efficiency was recorded using ultrasonic power ≥ 33W, subjected to 5 min of irradiation time.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Water Process Engineering - Volume 15, February 2017, Pages 26-30
نویسندگان
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