کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10277167 464272 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Can electrochemical oxidation techniques really decontaminate saline dyes wastewater?
ترجمه فارسی عنوان
آیا روش های اکسیداسیون الکتروشیمیایی واقعا فاضلاب رنگی شور را تخریب می کنند؟
کلمات کلیدی
فاضلاب نساجی، کلرید، محصولات جانبی کلر، رادیکال های هیدروکسیل،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Formation of toxic chlorinated organic byproducts is of great concern when selecting electrochemical oxidation (EO) as decontamination technology for saline dye wastewater, but still not verified. To test the applicability of EO, methyl orange (MO) was used as a model dye for anodic contact glow discharge electrolysis (CGDE) and conventional electrolysis (CE) in the presence of chloride. The degradation kinetics and organic intermediates were analyzed. In the presence of chloride, the rates of dye degradation were significantly increased as CGDE and CE were applied. CE resulted in higher mineralization efficiency than CGDE which needs much energy input. Several refractory chlorinated aromatic and even aliphatic compounds were identified during MO degradation, as well as the other anthraquinone dye, alizarin red S (AR). Therefore, the issues of toxic chlorinated byproducts and energy cost should be preferentially evaluated prior to the selection of EO technologies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Chemical Engineering - Volume 3, Issue 3, September 2015, Pages 1648-1653
نویسندگان
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