Heterogeneous photo-Fenton oxidation of benzoic acid in water: Effect of operating conditions, reaction by-products and coupling with biological treatment

Synthesis and application of green mixed-metal oxide nano-composite materials from solid waste for dye degradation

“…Various authors have previously reported enhanced dye degradation/decolourisation with metal substituted iron oxides as compared to pure iron oxides (Mahmoud et al, 2013;Costa et al, 2006). Table 2 shows a comparison of iron composites materials synthesized by various methods and their application in wastewater treatment (Magalhaes et al, 2007;Oliveira et al, 2008;Costa et al, 2003;Baldrian et al, 2006;Yang et al, 2009;Silva et al, 2011;Pariente et al, 2008;Chun et al, 2012;Zhu et al, 2014). It may be observed that the iron nano-composite materials as synthesized in the present study have comparable performance with other iron nano-materials reported in the literature.…”

“…Many researchers have already reported excellent performances of various iron oxide and their composite materials in removing organic pollutants and toxic ions from water (Table 2) (Magalhaes et al, 2007;Oliveira et al, 2008;Costa et al, 2003;Baldrian et al, 2006;Yang et al, 2009;Silva et al, 2011;Pariente et al, 2008;Chun et al, 2012;Zhu et al, 2014). However, in the present study, iron oxide NCMs have been prepared first time from a solid waste.…”

Toxicity and organic content characterization of olive oil mill wastewater undergoing a sequential treatment with fungi and photo-Fenton oxidation

“…In an attempt to increase oxidation rates, advanced oxidation processes have evolved, combining oxidants with ultraviolet radiation [19], to produce the highly oxidative OH • radical at room temperature. Among these, Fenton's reaction combined with ultraviolet radia- tion has been considered one of the most promising methods to deal with different organic matter-rich industrial wastewaters, such as OOMW [20,21]. According to Ahmadi et al [17], Fenton's reaction can treat recalcitrant organics in OOMW, removing up to 65% of COD.…”

The contribution of vanadium and titanium on improving methylene blue decolorization through heterogeneous UV-Fenton reaction catalyzed by their co-doped magnetite

“…After 120 min, about 96%, 94%, 85%, 83%, 70%, 61% O 4 , respectively, were above 90%. As reported by previous studies [24,25], the kinetic study of UV-Fenton process can be performed by assuming that the reaction between hydroxyl radicals and the pollutant is the rate determining step. Thus, by assuming that • OH instantaneous concentration was a constant, MB degradation could be described by a pseudo-first-order kinetic expression:…”