Small volumes (100 mL) of acidic aqueous solutions with 30-200 mg L TOC of the toxic azo dye Acid Red 1 (AR1) have been comparatively treated by various electrochemical advanced oxidation processes (EAOPs). The electrolytic system consisted of a BDD anode able to produce OH and an air-diffusion cathode that generated H2O2, which subsequently reacted with added Fe to yield additional OH from Fen...

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With the aim of bringing heterogeneous electro-Fenton (EF) treatment one step closer to a more realistic operation, scaling-up that technology was evaluated. Assays were performed firstly at lab scale in stirred-tank reactor and then bench flow setup including jet aerator microfluidic flow-through electrochemical cell. A fluidized-bed added bench-scale installation order retain solid catalyst, ...

Introduction: Acetamiprid (AP) is one of the most widely used pesticides in the neonicotinoid class. AP residues in the environment have received considerable due to their potential toxicity to humans. Therefore, it is important to remove AP from the aqueous solution. Materials and Methods: In the current study, response surface methodology (RSM) was used as an efficient approach to optimize t...

This paper reviews the application of indirect electro-oxidation processes such as electroFenton, photoelectro-Fenton and peroxi-coagulation to decontaminate waters containing persistent pesticides. The fundamentals of these electrochemical advanced oxidation processes (EAOPs) are described. They are environmentally friendly technologies based on the electrogeneration of H2O2 at a carbonaceous ...

Ni-ethylenediaminetetraacetic acid (Ni-EDTA) poses serious threats to the ecological environment and human health, due its acute toxicity low biodegradability. The decomplexation efficiency of Ni-EDTA through conventional Fenton process has been constrained pH; thus, other appropriate approaches are required destroy stable chelate structure at a neutral pH. In this study, effect operating param...

Constructing heterostructure within electrocatalysts proves to be an attractive approach adjust the interfacial charge redistribution promote adsorption of reactive species and accelerate transfer. Herein, we present one-pot solvothermal synthesis Ti3C2 supported hollow CoS2/CoS microsphere with uneven distribution as cathodic catalyst, which displays a superior quasi-first-order degradation ra...

To establish an efficient oxidation process for carbofuran degradation, the effects of some operating parameters such as dosages of H(2)O(2), Fe(2+) and initial carbofuran concentrations were observed during carbofuran degradation by the ultrasound process, Fenton process and a combined ultrasound/Fenton process. The degradation kinetics of carbofuran was also examined based on the experimental...

Herein, the application of a N-doped graphitic-carbon-coated iron nitride composite dispersed in carbon framework (Fe3N@NG/NC) is investigated as heterogeneous electro-Fenton (HE-EF) catalyst for efficient removal organics. The simultaneous carbonization and ammonia etching iron-based metal organic (Fe-MOF) materials yielded well-dispersed carbon-coated Fe3N nanoparticles with diameter ~70 nm. ...

In order to improve the degradation efficiency of pulping and papermaking wastewater, the combination oxidation process of Fenton with ultrasonic irradiation was carried out. The processes of ultrasonic irradiation alone and Fenton oxidation alone on pulping and papermaking wastewater treatment were optimized respectively. Basing on the optimum process of Fenton oxidation, the synergistic effec...