Fenton and Photo-Fenton Processes - ScienceDirect
Its degradation by advanced oxidation technologies like Fenton and Photo-Fenton oxidation has been reported by Karale et al. (2014). The effect of various operating parameters like pH, hydrogen peroxide, iron salts (both ferrous and iron extracted from laterite soil) and reaction time were observed.
Photo-Fenton Oxidation Technology - MDPI
The photo-Fenton oxidation technology was used to degrade trimethoprim in wastewater and the extent of degradation was analyzed by using high-performance liquid chromatography, then experimentally obtained the optimal conditions.
Photo-Fenton oxidation technology for the treatment
Photo-Fenton oxidation technology for the treatment of wastewater V. Muelas-Ramos, R. Muñoz-Mansilla, V. Calvino-Casilda, E. Muñoz-Camacho, R.M. Martín-Aranda, I.A. Santos-López The main recent advances in photo-Fenton oxidation treatment for recalcitrant wastewaters have been reviewed. Biodegradable intermediates and mineralized pollutants are obtained from recalcitrant compounds when
The advantages of the photo-Fenton AOP compared to the Fenton process are significantly lower operating costs, the absence of the filter press(es) and a much higher degradation rate of the Photo-Fento oxidation compared to the Fenton oxidation. Furthermore, the Photo-Fenton process can be largely automatic, unlike a Fenton process, which will
Nanostructured semiconductor supported iron catalysts
Firstly, a general background, especially the principles of heterogeneous photo-Fenton oxidation, is provided. Then, the recent developments in constructing supported iron catalysts for heterogeneous photo-Fenton oxidation are summarized, with a focus on iron catalysts supported on four popular semiconductors (TiO 2 , carbon nitride, bismuth
Photo-Fenton Reaction at Near Neutral pH | Environmental
The photo-Fenton reaction, oxidation of photoproduced ferrous iron by hydrogen peroxide, produces reactive oxidants that may be important to degradation of biologically and chemically recalcitrant organic compounds in surface waters at circum-neutral pH. Sufficient Fe(II) for the photo-Fenton reaction was produced in situ at two field sites (pH 6.1−7.1) and during irradiations of model
Heterogeneous fenton and photo‐fenton oxidation
Homogenous (photo‐)Fenton oxidation has proved efficient for its remediation, but it suffers from uneasy dissolved iron recovery. Therefore this work examines the performance and stability of an iron containing zeolite (Fe/MFI) as catalyst for this reaction.
(PDF) Decolorization of textile wastewater by photo-fenton
This paper describes the use of photo-fenton process for color removal from textile wastewater stream. The wastewater sample to be treated was simulated by using colorless polyvinyl alcohol (PVA) and reactive dyestuff of R94H.
Experimental Design of Photo-Fenton Reactions for the
Establishing a treatment process for practical and economic disposal of car wash wastewater has become an urgent environmental concern. Photo-Fenton’s process as one of the advanced oxidation processes is a potentially useful oxidation process in treating such wastewater. Lab-scale experiments with UV source, coupled with Fenton’s reagent, showed that hydrocarbon oil is
Photo-Fenton process of oxidative destruction of rice husk
Thus, we showed the possibility of applying the photo-Fenton process for the destruction of lignin in silica-free solutions of alkaline hydrolysates of rice husk with a neutral pH. It was found that the efficiency of degradation of lignin in a solution with hydrogen peroxide (COD:H 2 O 2 = 1:2) increases with an increase in the iron(II
Wastewater Management using Photo-Fenton Oxidation
Photo-Fenton Oxidation • What is photo-fenton oxidation? – Hydroxyl radicals produced due to UV/H2O2/Fe2+ or Fe3+ – H2O2 acts as oxidant ; Iron ions act as catalyst; UV light enhances the production of hydroxyl radicals and also recycles Fe ions. • Parameters – pH, H2O2 dose, FeSO4.7H2O dose, Irradiation time 6. REACTION 7.
Fenton and Photo-fenton Oxidation Processes for Degradation
Whereas photo-Fenton reaction studies required much less reaction time equal to 1.5 hrs for 10-30mg/L to 2.0 hrs for 40-60mg/L and 4.0 hrs for 70-80mg/L.Photo-Fenton oxidation process showed 100% removal of 3AP for increase in conc. upto 30mg/L under both ferrous and laterite iron .Thereafter percent removals were reduced to 91.7% as conc
PHOTOCATALYTIC OXIDATION AND HETEROGENEOUS FENTON
In this context, heterogeneous Fenton and photocatalytic oxidation processes were applied and removal efficiencies were compared. The Fe(III)/MnO 2 catalyst containing 8% w/w of iron ion was synthesized to be used in experimental studies.