کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6671907 | 1427549 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Desirability function applied to the optimization of the Photoperoxi-Electrocoagulation process conditions in the treatment of tannery industrial wastewater
ترجمه فارسی عنوان
تابع مطلوبیت به منظور بهینه سازی شرایط فرایند فوتوتراپی-الکترو کلاژن در درمان فاضلاب صنعتی آفتابگردان
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
The aim of this work was to determine the optimal Photoperoxi-Electrocoagulation (PPEC) process experimental conditions for the treatment of a tannery industrial wastewater (TIW). The lab-scale PPEC-reactor comprises a pair of iron-flat plates, resulting in a contact effective area of 58.5â¯cm2; the PPEC reaction was conducted by electrochemical phenomenon associated to a Fenton's reaction based on the H2O2 concentrations added, the solar UV-vis light was exposed, as well as iron ion dissolved original plate deterioration, resulting in a production of an efficient hydroxyl radical (OH). An optimising analysis using a response surface methodology was performed; the optimum conditions of the PPEC process were attained at a solution pH of 4, current density of 34.2â¯mAâ¯cmâ2, 6â¯g H2O2 Lâ1 and an electrolysis time of 120â¯min. The effects on the removal of chromium and COD were evaluated, suggesting satisfactory results for the PPEC reaction. Based on the low calculated median lethal dose (LD50) values from a lettuce-seed-based ecotoxicity test, untreated TIW samples were completely lethal for doses with 100%, except for samples taken after 90 and 120â¯min. The PPEC process could be applied as an efficient low-cost alternative treatment for the removal of pollutants from TIW with a low environmental impact.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Water Process Engineering - Volume 23, June 2018, Pages 207-216
Journal: Journal of Water Process Engineering - Volume 23, June 2018, Pages 207-216
نویسندگان
Fernando H. Borba, Daiana Seibert, Leandro Pellenz, Fernando R. Espinoza-Quiñones, Carlos E. Borba, Aparecido N. Módenes, Rosângela Bergamasco,