Evaluation of Electro-Fenton Process Performance for COD and Reactive Blue 19 Removal from Aqueous Solution
Background and Objectives: Synthetic dyes represent one of the largest groups of pollutants in wastewater of dying industries. Discharging these wastewaters into receiving streams not only affects the aesthetic but also reduces photosynthetic activity. Electrochemical advanced oxidation processes su...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | fas |
Published: |
Tehran University of Medical Sciences
2013-02-01
|
Series: | سلامت و محیط |
Subjects: | |
Online Access: | http://ijhe.tums.ac.ir/browse.php?a_code=A-10-25-4&slc_lang=en&sid=1 |
id |
doaj-7554a17ba905400f962fb7c95c8af7aa |
---|---|
record_format |
Article |
spelling |
doaj-7554a17ba905400f962fb7c95c8af7aa2021-09-02T03:11:08ZfasTehran University of Medical Sciencesسلامت و محیط2008-20292008-37182013-02-0154433444Evaluation of Electro-Fenton Process Performance for COD and Reactive Blue 19 Removal from Aqueous SolutionMohammad MalakootianMahdi AsadiAmir Hossein MahviBackground and Objectives: Synthetic dyes represent one of the largest groups of pollutants in wastewater of dying industries. Discharging these wastewaters into receiving streams not only affects the aesthetic but also reduces photosynthetic activity. Electrochemical advanced oxidation processes such as Electro-Fenton process are low operational and have high mineralization degree of pollutants. In this study, we investigated affective factors in this process to determine the optimum conditions for dye and COD removal from aqueous solutions containing Reactive Blue 19 dye.Materials and Methods: Synthetic samples containing Reactive Blue 19 dye were prepared by dissolving dye powder in double distilled water. and the the solution prepared was transferred into pilot electrochemical cell having two anode and cathode electrode made of iron and carbon. Electro-Fenton process was began by adding of Fe2+ ions and establishing electrical potential difference. After testing and at specified time intervals, each sample was collected from the pilot cell, and process performance was evaluated through measuring dye concentration and COD. Results: Based on the results obtained, optimum conditions of Electro-Fenton process for dye and COD removal was determined. Accordingly, potential difference of 20 volt for dye concentration up to 100 mg/L and potential difference of 30 volt for dye concentration of more than 200 mg/L, reaction time 60 minutes, 0.5 mg/L of Fe2+ concentration and suitable pH for the maximum dye removal efficiency equaled 4 respectively. Under such conditions, the dye and COD removal was 100 and 95% respectively.Conclusion: Based on the results obtained, it was revealed that Electro-Fenton process has significant ability in not only dye removal but also in COD removal. Accordingly, it was found that the effective parameters in Electro-Fenton process for removal Reactive Blue19 dye are electric potential difference, concentration of iron ions and electrolysis time. http://ijhe.tums.ac.ir/browse.php?a_code=A-10-25-4&slc_lang=en&sid=1Electro-Fenton processAdvanced oxidationReactive Blue19 dyeElectrical Potential difference |
collection |
DOAJ |
language |
fas |
format |
Article |
sources |
DOAJ |
author |
Mohammad Malakootian Mahdi Asadi Amir Hossein Mahvi |
spellingShingle |
Mohammad Malakootian Mahdi Asadi Amir Hossein Mahvi Evaluation of Electro-Fenton Process Performance for COD and Reactive Blue 19 Removal from Aqueous Solution سلامت و محیط Electro-Fenton process Advanced oxidation Reactive Blue19 dye Electrical Potential difference |
author_facet |
Mohammad Malakootian Mahdi Asadi Amir Hossein Mahvi |
author_sort |
Mohammad Malakootian |
title |
Evaluation of Electro-Fenton Process Performance for COD and Reactive Blue 19 Removal from Aqueous Solution |
title_short |
Evaluation of Electro-Fenton Process Performance for COD and Reactive Blue 19 Removal from Aqueous Solution |
title_full |
Evaluation of Electro-Fenton Process Performance for COD and Reactive Blue 19 Removal from Aqueous Solution |
title_fullStr |
Evaluation of Electro-Fenton Process Performance for COD and Reactive Blue 19 Removal from Aqueous Solution |
title_full_unstemmed |
Evaluation of Electro-Fenton Process Performance for COD and Reactive Blue 19 Removal from Aqueous Solution |
title_sort |
evaluation of electro-fenton process performance for cod and reactive blue 19 removal from aqueous solution |
publisher |
Tehran University of Medical Sciences |
series |
سلامت و محیط |
issn |
2008-2029 2008-3718 |
publishDate |
2013-02-01 |
description |
Background and Objectives: Synthetic dyes represent one of the largest groups of pollutants in wastewater of dying industries. Discharging these wastewaters into receiving streams not only affects the aesthetic but also reduces photosynthetic activity. Electrochemical advanced oxidation processes such as Electro-Fenton process are low operational and have high mineralization degree of pollutants. In this study, we investigated affective factors in this process to determine the optimum conditions for dye and COD removal from aqueous solutions containing Reactive Blue 19 dye.Materials and Methods: Synthetic samples containing Reactive Blue 19 dye were prepared by dissolving dye powder in double distilled water. and the the solution prepared was transferred into pilot electrochemical cell having two anode and cathode electrode made of iron and carbon. Electro-Fenton process was began by adding of Fe2+ ions and establishing electrical potential difference. After testing and at specified time intervals, each sample was collected from the pilot cell, and process performance was evaluated through measuring dye concentration and COD. Results: Based on the results obtained, optimum conditions of Electro-Fenton process for dye and COD removal was determined. Accordingly, potential difference of 20 volt for dye concentration up to 100 mg/L and potential difference of 30 volt for dye concentration of more than 200 mg/L, reaction time 60 minutes, 0.5 mg/L of Fe2+ concentration and suitable pH for the maximum dye removal efficiency equaled 4 respectively. Under such conditions, the dye and COD removal was 100 and 95% respectively.Conclusion: Based on the results obtained, it was revealed that Electro-Fenton process has significant ability in not only dye removal but also in COD removal. Accordingly, it was found that the effective parameters in Electro-Fenton process for removal Reactive Blue19 dye are electric potential difference, concentration of iron ions and electrolysis time. |
topic |
Electro-Fenton process Advanced oxidation Reactive Blue19 dye Electrical Potential difference |
url |
http://ijhe.tums.ac.ir/browse.php?a_code=A-10-25-4&slc_lang=en&sid=1 |
work_keys_str_mv |
AT mohammadmalakootian evaluationofelectrofentonprocessperformanceforcodandreactiveblue19removalfromaqueoussolution AT mahdiasadi evaluationofelectrofentonprocessperformanceforcodandreactiveblue19removalfromaqueoussolution AT amirhosseinmahvi evaluationofelectrofentonprocessperformanceforcodandreactiveblue19removalfromaqueoussolution |
_version_ |
1721180923483914240 |