%0 Journal Article %T Potential use of Foundry Sand as Heterogeneous Catalyst in Solar Photo- Fenton Degradation ofHerbicide Isoproturon %J International Journal of Environmental Research %I University of Tehran/Springer %Z 1735-6865 %A Kaur, M. %A Verma, A. %A Rajput, H. %D 2015 %\ 01/01/2015 %V 9 %N 1 %P 85-92 %! Potential use of Foundry Sand as Heterogeneous Catalyst in Solar Photo- Fenton Degradation ofHerbicide Isoproturon %K Foundry sand %K Herbicide isoproturon %K Photo-Fenton %K degradation %K Mineralization %R 10.22059/ijer.2015.877 %X This study deals with employing foundry sand (FS) as new low cost iron source in heterogeneousphoto-Fenton process for the degradation of herbicide isoproturon (IPU) in aqueous solution. Thecharacterization of the FS by EDS confirmed presence of iron (23%) required for photo-Fenton andsimultaneously confirmed absence of any heavy metals which may be susceptible to leaching. The photo-Fenton effects of different reaction parameters like H2O2 concentration [H2O2]0, operating pH, initialconcentration of IPU [C0], FS dose, recycling of FS, effect of area/volume ratio were investigated. Resultsshowed that the maximal removal efficiency were achieved when reaction parameters were [H2O2]0= 2.2 mM,pH 3, FS dose=0.5 g/L, [C0] =25 mg/L. Under optimum condition, 97% degradation efficiency of IPU wasachieved within 150 min of reaction. The catalyst recycling test was performed and FS was effectivelyrecycled for 4 times with 20% reduction in degradation efficiency. SEM-EDS analysis of recycled FS confirmedmorphology of FS unchanged. Solar baffled batch reactor (SBBR) with recirculation confirmed 70% degradationof IPU after 6 h. IPU mineralization was confirmed with TOC reduction, NH4+ generation along with formationof intermediates as confirmed through LC-MS. %U https://ijer.ut.ac.ir/article_877_449b3ca6c8a93b9c453a60f55feafb62.pdf