Removal of Phosphorus from Aqueous Solution by Fenton Oxidation Process

Subject Areas : environmental management

Mohammadreza  Heidari ¹ (MSc of Environmental Health Engineering, Department of Environment Health Engineering, School of Health, Bam University of Medical Sciences Bam , Iran *(Corresponding Author))
Mohammad  Malakootian ² (Prof., Environmental Health Engineering Research Center, Dept. of Environmental Health, Kerman University of Medical Sciences, Kerman, Iran)
Fahimeh  Asadi ³ (Expert of Environmental Health Engineering, Zabol University of Medical Sciences, Zabol , Iran)

Received: 2014-11-07 Accepted : 2015-06-17 Published : 2018-06-22

Keywords: Removal, Phosphor, Fenton Process, Aqueous solution,

Abstract :

Background and Objective: phosphorus considered among the major pollutants in water environments. Phosphoris contamination in surface water and groundwater resources originates mainly from the excessive use of fertilizers and uncontrolled land discharges of untreated wastewater. Discharge of it into the enviroment causes many negative health impact.The aim of this study was to investigate the efficiency of Fenton’s advanced oxidation process (H2O2/Fe+2) in the phosphorus removal from aqueous solutions. Method: This is an experimental study which is carried out in laboratory scale. In this study, the effect of the important operational variables including pH,Fe+2  dosage, H2O2  dosage, initial phosphorconcentration,and  Contact time were  evaluated  on  the phosphate removal from Aqueous Solution by Fenton has been investigated. Findings:­The­ results showed that this method has the ability to remove phosphorus from aqueous solutions to less than standard level WHO (≤1mg/l).pH , ratio H2O2 / Fe+2 and Contact time have direct effect and initial phosphor concentration has reverse effect of phosphor removal. The results showed that the Fenton process, can reach respectively 97% phosphor removal. So that optimum condition of the phosphorus removal is in the Ratio H2O2 / Fe2+ dosage = 2200 /1000 mg/l, contact time of 60 min, pH = 3.5 in initial phosphor Concentration in 100mg /L. SPSS statistical test showed that the mean concentration in the before and after doing all process, there were significant differences ( P ≤ 0.05 ). Discussion and Conclusion: Results show, the efficient removal of phosphate using Fenton process is desirable in the water treatment and pollution control.The results of the study is consistent with similar cases by other researchers.   Key words: Removal, Phosphor, Fenton Process, Aqueous Solution.    

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