A novel electrochemical device for the disinfection of fluids by OH radicals

Christensen, Paul; Egerton, Terry A.; Lin, Wen‐Feng; Meynet, Paola; Shao, Zhi-Gang; Wright, N. G.

doi:10.1039/b608329n

Cited by 21 publications

(19 citation statements)

References 11 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recent research has demonstrated that electrochemistry offers an attractive alternative to the above-mentioned traditional methods for treating wastewaters [16][17][18][19][20][21][22]. Electrochemical coagulation, which is one of these techniques, is the electrochemical production of destabilization agents that brings about charge neutralization for pollutant removal, and it has been used for water or wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

Removal of iron from drinking water by electrocoagulation: Adsorption and kinetics studies

Vasudevan

Jayaraj

Lakshmi

et al. 2009

Korean J. Chem. Eng.

View full text Add to dashboard Cite

The present study provides an electrocoagulation process for the removal of iron from drinking water with aluminum alloy as the anode and stainless steel as the cathode. The studies were carried out as a function of pH, temperature and current density. The adsorption capacity was evaluated with both the Langmuir and the Freundlich isotherm models. The results showed that the maximum removal efficiency of 98.8% was achieved at a current density of 0.06 A dm −2 , at a pH of 6.5. The adsorption of iron preferably fitting the Langmuir adsorption isotherm suggests monolayer coverage of adsorbed molecules. The adsorption process follows second-order kinetics. Temperature studies showed that adsorption was endothermic and spontaneous in nature.

show abstract

Section: Introductionmentioning

confidence: 99%

Removal of iron from drinking water by electrocoagulation: Adsorption and kinetics studies

Vasudevan

Jayaraj

Lakshmi

et al. 2009

Korean J. Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…3 Nevertheless, the stability and unusual electrocatalytic properties can be obtained with a composite anode based on a TiO 2 and Si heterojunction [27,28]. P-n semiconductors heterojunctions have been explored previously as photoactive materials for photocatalytic applications [29,30].…”

Section: Introductionmentioning

confidence: 99%

A New Si/TiO2/Pt p-n Junction Semiconductor to Demonstrate Photoelectrochemical CO2 Conversion

Guaraldo

Brito

Wood

et al. 2015

Electrochimica Acta

View full text Add to dashboard Cite

Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

show abstract

“…The term e À2ah in Eq. (24) reflects the extent of lateral interaction, if a > 0 indicates attraction, while a < 0 means repulsion (41). From Table 5, we see that the value of a is À0.525 indicating the attraction.…”

Section: Frumkin Equationmentioning

confidence: 93%

“…Usually magnesium and aluminium plates are used as electrodes in the electrocoagulation followed by the electrosorption process (17)(18)(19). The advantages of electrocoagulation include high particulate removal efficiency, a compact treatment facility, relatively low cost, and the possibility of complete automation (20)(21)(22)(23)(24)(25). This technique does not require supplementary addition of chemicals and reduces the volume of produced sludge.…”

mentioning

confidence: 99%

Studies Relating to Removal of Arsenate by Electrochemical Coagulation: Optimization, Kinetics, Coagulant Characterization

Vasudevan

Lakshmi

Sozhan

2010

Separation Science and Technology

View full text Add to dashboard Cite

The present investigation aims to remove arsenate [As(V)] by electrochemical coagulation using mild steel as anode and cathode. The results showed that the optimum removal efficiency of 98.6% was achieved at a current density of 0.2 A dm À2 , at a pH of 7.0. The effect of current density, solution pH, temperature, co-existing ions, adsorption isotherm, and kinetics has been studied. Kinetics reveals that the removal of arsenate by electrochemical coagulation is very rapid in the first 15 min and remains almost constant with the progress of reaction. The adsorption kinetics obeys the second-order rate expression. An equilibrium isotherm was measured experimentally and the results were analyzed by Langmuir, Freundlich, Dubinin-Redushkevich, and Frumkin using the linearized correlation co-efficient. The characteristics parameters for each isotherm were determined. The Langmuir adsorption isotherm was found to fit the equilibrium data for arsenate adsorption. Temperature studies showed that the adsorption was endothermic and spontaneous in nature.

show abstract

A novel electrochemical device for the disinfection of fluids by OH radicals

Abstract: This paper describes a novel, composite device, based not on optical excitation but on the transfer of holes from Si to the TiO(2)/air or TiO(2)/water interface, for the disinfection and detoxification of fluid streams.

Cited by 21 publications

References 11 publications

Removal of iron from drinking water by electrocoagulation: Adsorption and kinetics studies

Removal of iron from drinking water by electrocoagulation: Adsorption and kinetics studies

A New Si/TiO2/Pt p-n Junction Semiconductor to Demonstrate Photoelectrochemical CO2 Conversion

Studies Relating to Removal of Arsenate by Electrochemical Coagulation: Optimization, Kinetics, Coagulant Characterization

Contact Info

Product

Resources

About