کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
633369 | 1456026 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simultaneous regeneration of inorganic acid and base from a metal washing step wastewater by bipolar membrane electrodialysis after pretreatment by crystallization in a fluidized pellet reactor
ترجمه فارسی عنوان
بازسازی مجدد اسید معدنی و پایه از یک مرحله فاضلاب گریز از فلز با الکترو دی دیالیز غشای دوقطبی پس از پیش پردازش با کریستالیزاسیون در یک رآکتور پلت مایع
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کلمات کلیدی
الکترو دیالیز غشای دو قطبی، راکتور پودر مایع بازسازی اسید / پایه، تصفیه فاضلاب،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
This study aims to investigate the feasibility of an integrated system consisting of a fluidized pellet reactor and bipolar membrane electrodialysis (EDBM) for regeneration of acid and base from wastewater with a high concentration of calcium and nickel ions. The fluidized pellet reactor was used to reduce the potential of scaling on the membranes by crystallization. EDBM was applied to regenerate acid/base from this pretreated wastewater. The results show that calcium and nickel can be removed by the fluidized pellet reactor with sufficient efficiency (74% and 73% without filtration, 74% and 94.4% with filtration, respectively). After pretreatment, it was feasible to regenerate mixed acid and base using EDBM. The current efficiency was 69% for the acid, 80% for the base; the energy consumption was 5.5Â kWÂ h/kg acid and 4.8Â kWÂ h/kg base at a current density of 60Â mA/cm2 and an initial concentration of 0.2Â N. In a long-term experiment, the pretreatment increased cation exchange membrane performance and a high concentration of acid and base up to 1.76Â N and 2.41Â N was produced with only slight scaling on the cation exchange membrane surface. This integrated process is not only technically but also environmentally feasible, reducing water pollution and yielding valuable products to achieve sustainable development.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 473, 1 January 2015, Pages 118-127
Journal: Journal of Membrane Science - Volume 473, 1 January 2015, Pages 118-127
نویسندگان
Anh T.K. Tran, Priyanka Mondal, JiuYang Lin, Boudewijn Meesschaert, Luc Pinoy, Bart Van der Bruggen,