EVALUATION OF EFFICIENCY OF PERSULFATE ACTIVATED WITH HEAT IN 2,4-DINITROPHENOL DEGRADATION FROM AQUEOUS SOLUTION BY CENTRAL COMPOSITE DESIGN METHOD

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SHOKOHI R.; SHABANLOO A.; ZAMANI F.

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Journal: Iranian Journal of Health and Environment Year:2017 | Volume:10 | Issue:2 Page(s): 187-198

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Title

EVALUATION OF EFFICIENCY OF PERSULFATE ACTIVATED WITH HEAT IN 2,4-DINITROPHENOL DEGRADATION FROM AQUEOUS SOLUTION BY CENTRAL COMPOSITE DESIGN METHOD

Author(s)

SHOKOHI R. | SHABANLOO A. | ZAMANI F. | Issue Writer Certificate

Keywords

INDUSTRIAL WASTEWATER TREATMENTQ1

2Q2

4-DINITROPHENOLQ1

ADVANCED OXIDATIONQ2

HEAT ACTIVATED PERSULFATEQ1

CENTRAL COMPOSITE DESIGN METHODQ1

Abstract

Background and Objective: Nitro phenols are among the most common and toxic compounds in industrial effluents that 2, 4 dinitrophenol (2, 4-DNP) is the most toxic compound in this group. The object of this study was to optimize the removal of 2, 4-DNP by thermally activated persulfate using a central composite design.Materials and Methods: This study was performed on a batch thermal reactor with a volume of 4 L. In this study, a central composite design (CCD) with RSM method was used for designing and optimizing the operation parameters such as initial pH of solution, potassium persulfate concentration and temperature. The effect of 2, 4-DNP concentration and reaction time at optimum conditions were also investigated.Results: The results indicated that the degradation rate of 2, 4-DNP was enhanced by increasing the concentration of persulfate and reducing temperature and pH. The optimum conditions for the highest degradation efficiency (99%) were as initial concentration 10 mg/L, reaction time 30 min, temperature 60 °C, Potassium persulfate concentration 10 mmol/L, and pH 5. At the optimum conditions, when 2, 4-DNP concentration was increased to 50 mg/L, the 2, 4-DNP degradation rate decreased to 73%.Conclusion: This study indicated that the heat-activated PS oxidation could be an efﬁcient approach for decomposition of2, 4-DNP. Temperature was the most influential variable in this regard (P-value<0.0001).

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APA: Copy

SHOKOHI, R., SHABANLOO, A., & ZAMANI, F.. (2017). EVALUATION OF EFFICIENCY OF PERSULFATE ACTIVATED WITH HEAT IN 2,4-DINITROPHENOL DEGRADATION FROM AQUEOUS SOLUTION BY CENTRAL COMPOSITE DESIGN METHOD. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 10(2), 187-198. SID. https://sid.ir/paper/145924/en

Vancouver: Copy

SHOKOHI R., SHABANLOO A., ZAMANI F.. EVALUATION OF EFFICIENCY OF PERSULFATE ACTIVATED WITH HEAT IN 2,4-DINITROPHENOL DEGRADATION FROM AQUEOUS SOLUTION BY CENTRAL COMPOSITE DESIGN METHOD. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2017;10(2):187-198. Available from: https://sid.ir/paper/145924/en

IEEE: Copy

R. SHOKOHI, A. SHABANLOO, and F. ZAMANI, “EVALUATION OF EFFICIENCY OF PERSULFATE ACTIVATED WITH HEAT IN 2,4-DINITROPHENOL DEGRADATION FROM AQUEOUS SOLUTION BY CENTRAL COMPOSITE DESIGN METHOD,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 10, no. 2, pp. 187–198, 2017, [Online]. Available: https://sid.ir/paper/145924/en

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