Insights into the Role of Humic Acid on Pd-catalytic Electro-Fenton Transformation of Toluene in Groundwater

Liao, Peng; Al-Ani, Yasir; Wu, Xiaohui

doi:10.1038/srep09239

Cited by 12 publications

(2 citation statements)

References 45 publications

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“…Electrochemical AOPs (EAOPs) have been mainly applied for wastewater more than for drinking water treatment due to technical and economic aspects [98]. Trellu et al [99] studied the removal of humic acids from drinking water by anodic oxidation and electro-Fenton processes.…”

Section: Electrochemical Aopsmentioning

confidence: 99%

The Role of Catalytic Ozonation Processes on the Elimination of DBPs and Their Precursors in Drinking Water Treatment

2021

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Formation of disinfection byproducts (DBPs) in drinking water treatment (DWT) as a result of pathogen removal has always been an issue of special attention in the preparation of safe water. DBPs are formed by the action of oxidant-disinfectant chemicals, mainly chlorine derivatives (chlorine, hypochlorous acid, chloramines, etc.), that react with natural organic matter (NOM), mainly humic substances. DBPs are usually refractory to oxidation, mainly due to the presence of halogen compounds so that advanced oxidation processes (AOPs) are a recommended option to deal with their removal. In this work, the application of catalytic ozonation processes (with and without the simultaneous presence of radiation), moderately recent AOPs, for the removal of humic substances (NOM), also called DBPs precursors, and DBPs themselves is reviewed. First, a short history about the use of disinfectants in DWT, DBPs formation discovery and alternative oxidants used is presented. Then, sections are dedicated to conventional AOPs applied to remove DBPs and their precursors to finalize with the description of principal research achievements found in the literature about application of catalytic ozonation processes. In this sense, aspects such as operating conditions, reactors used, radiation sources applied in their case, kinetics and mechanisms are reviewed.

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Section: Electrochemical Aopsmentioning

confidence: 99%

The Role of Catalytic Ozonation Processes on the Elimination of DBPs and Their Precursors in Drinking Water Treatment

2021

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“…In the presence of Fe 2+ , •OH is produced by (Reaction 4). This process has shown high performance on degrading many organic contaminants including trichloroethyelene [15], phenol [12] and toluene [17] in wastewater and groundwater.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Pd-catalytic onto nontronite mineral and H2O2 produced from H2 and O2 to degrade organic contaminants

AlAni¹

2017

IJCE

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A novel electro-Fenton process based on Pd-catalytic production of H2O2 from H2 and O2 has been studied and examined recently for altering and degrading organic contaminants in different types of wastewaters. The study endeavors to synthesize an integrated catalyst by loading Pd onto the clay mineral,nontronite, (Pd/NTm) so that H2O2 and Fe(II)‫‬ can be produced simultaneously in the electrolytic system. In an undivided electrolytic cell, rhodamine B, a probe organic contaminant, is degraded by 93% within 60 min under conditions of 50 mA, 1 g/L Pd/NTm, pH 3 and 20 mg/L initial concentration. A distinct mechanism, reductive dissolution of solid Fe(III) in nontronite by atomic H chemisorbed on Pd surface, is responsible for Fe(II) ‫‬ production from Pd/NTm.

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The role of dissolved oxygen in the sulfite/divalent transition metal ion system: degradation performances and mechanisms

Xiao

2021

Chemical Engineering Journal

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Insights into the Role of Humic Acid on Pd-catalytic Electro-Fenton Transformation of Toluene in Groundwater

Cited by 12 publications

References 45 publications

The Role of Catalytic Ozonation Processes on the Elimination of DBPs and Their Precursors in Drinking Water Treatment

The Role of Catalytic Ozonation Processes on the Elimination of DBPs and Their Precursors in Drinking Water Treatment

Feasibility of Pd-catalytic onto nontronite mineral and H2O2 produced from H2 and O2 to degrade organic contaminants

The role of dissolved oxygen in the sulfite/divalent transition metal ion system: degradation performances and mechanisms

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