OPTIMIZATION OF DIAZINON REMOVAL FROM AQUEOUS ENVIRONMENTS BY ELECTROCOAGULATION PROCESS USING RESPONSE SURFACE METHODOLOGY

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BAZRAFSHAN EDRIS; MOHAMMADI LEILI; BALARAK DAVOUD; KEIKHAEI SAEIDEH; MAHVI AMIRHOSSEIN

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Journal: JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES Year:2016 | Volume:26 | Issue:138 Page(s): 118-130

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Title

OPTIMIZATION OF DIAZINON REMOVAL FROM AQUEOUS ENVIRONMENTS BY ELECTROCOAGULATION PROCESS USING RESPONSE SURFACE METHODOLOGY

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Keywords

PESTICIDEQ3

DIAZINONQ2

ELECTROCOAGULATIONQ2

RESPONSE SURFACE METHODOLOGYQ1

Abstract

Background and purpose: DIAZINON is one of the most widely used organophosphate PESTICIDEs classified by the World Health Organization (WHO) as “moderately hazardous” Class II. This work aimed at optimizing the ELECTROCOAGULATION process in removal of DIAZINON from aqueous environments using RESPONSE SURFACE METHODOLOGY.Materials and methods: In an experimental-laboratory study using the D-optimal method, the effects of independent variables including initial concentration of DIAZINON (10-100 mg/l), applied voltage (20-40 V), reaction time (10-60 min) and pH (3-10) were investigated on removal of DIAZINON in 30 runs. Process optimization was done by RESPONSE SURFACE METHODOLOGY. Analysis of proposed model was also performed using analysis of variance.Results: DIAZINON removal in proposed model was statistically significant at 95% confidence level. The model had insignificant lack-of-fit at 95% confidence level (P=0.614). DIAZINON removal efficiency was dependent on initial concentration of DIAZINON, applied voltage, and reaction time. The removal efficiency of DIAZINON was 84.6% at optimum condition (voltage=20 V and DIAZINON concentration=100 mg/L).Conclusion: ELECTROCOAGULATION process applying current experimental conditions was found to be efficient in removal of DIAZINON from aqueous solutions. Designing experiments by D-optimal method can optimize the removal of the process and prepare the best conditions for pollutant removal by reducing the number of experiments.

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APA: Copy

BAZRAFSHAN, EDRIS, MOHAMMADI, LEILI, BALARAK, DAVOUD, KEIKHAEI, SAEIDEH, & MAHVI, AMIRHOSSEIN. (2016). OPTIMIZATION OF DIAZINON REMOVAL FROM AQUEOUS ENVIRONMENTS BY ELECTROCOAGULATION PROCESS USING RESPONSE SURFACE METHODOLOGY. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES, 26(138), 118-130. SID. https://sid.ir/paper/44218/en

Vancouver: Copy

BAZRAFSHAN EDRIS, MOHAMMADI LEILI, BALARAK DAVOUD, KEIKHAEI SAEIDEH, MAHVI AMIRHOSSEIN. OPTIMIZATION OF DIAZINON REMOVAL FROM AQUEOUS ENVIRONMENTS BY ELECTROCOAGULATION PROCESS USING RESPONSE SURFACE METHODOLOGY. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2016;26(138):118-130. Available from: https://sid.ir/paper/44218/en

IEEE: Copy

EDRIS BAZRAFSHAN, LEILI MOHAMMADI, DAVOUD BALARAK, SAEIDEH KEIKHAEI, and AMIRHOSSEIN MAHVI, “OPTIMIZATION OF DIAZINON REMOVAL FROM AQUEOUS ENVIRONMENTS BY ELECTROCOAGULATION PROCESS USING RESPONSE SURFACE METHODOLOGY,” JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES, vol. 26, no. 138, pp. 118–130, 2016, [Online]. Available: https://sid.ir/paper/44218/en

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