Electrochemical reduction of nitrate using various anodes and a Cu/Zn cathode

Li, Miao; Feng, Chuanping; Zhang, Zhenya; Shen, Zuorui; Sugiura, Norío

doi:10.1016/j.elecom.2009.08.001

Cited by 100 publications

(42 citation statements)

References 18 publications

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“…HOCl may oxidize organic matter and other species such nitrite and ammonia via Eqs. (13) and (14), respectively [39,40]. Residual chlorine was measured at the end of the kinetic studies, yielding 14 mg/L Cl 2 for Ti-RuO 2 /CF, 52 mg/L Cl 2 for Ti-PdPtOx/CF and 79 mg/L Cl 2 for BDD/CF.…”

Section: Electro-fenton Processmentioning

confidence: 99%

Applying electro-Fenton process as an alternative to a slaughterhouse effluent treatment

Páramo-Vargas¹,

Camargo²,

Gutiérrez-Granados

et al. 2015

Journal of Electroanalytical Chemistry

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Section: Electro-fenton Processmentioning

confidence: 99%

Applying electro-Fenton process as an alternative to a slaughterhouse effluent treatment

Páramo-Vargas¹,

Camargo²,

Gutiérrez-Granados

et al. 2015

Journal of Electroanalytical Chemistry

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“…However, during electrochemical reduction of NO 3 -at a constant potential it has been demonstrated that the simultaneous electrochemical oxidation of NH 3 to N 2 seems to be difficult [8]. Therefore, it is challenging to find out the appropriate conditions to perform both cathodic reduction of NO 3 -and anodic oxidation of the produced NH 3 [9].…”

Section: B No 3 -Conversion Mechanism In An Electrochemical Flow Cellmentioning

confidence: 99%

Influence of Operational Parameters on Rapid Nitrate Removal Using an Electrochemical Flow Cell

Ashadullah¹,

Kishimoto²

2016

IJESD

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Abstract-Nitrate contamination is a great concern all over the world. However, the conventional biological processes like the modified Ludzack-Ettinger process are time-consuming. Accordingly, a rapid process for nitrate removal is desired. We conceived an electrochemical process for rapid removal of nitrate, which contained electrochemical reduction of nitrate to ammonia and electrochemical break-point chlorination of ammonia. In this research, we investigated effects of operational parameters such as volumetric electric charge, flow rate and chloride ion concentration on electrochemical nitrate removal. A hand-made divided flow cell with a copper mesh cathode, a platinum-coated titanium anode and a cation exchange membrane as a separator was developed as well as applied to the treatment of synthetic water containing 1.42 mM of nitrate at various volumetric electric charges, flow rates and chloride ion concentrations. As a result, it was observed that the flow cell operated at a flow rate of 20 mL/min, chloride ion concentration of 800 mg/L, volumetric electric charge of 5,100 C/L and at pH 7 successfully removed nitrate from 1.42 mM to 0.43 mM without ammonia and nitrite accumulation within 1 minute contact time. Consequently, the electrochemical technique was thought to be feasible for the rapid removal of nitrate from water streams.Index Terms-Break-point chlorination, biological process, electrochemical process, nitrate contamination.

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“…Electrolytic reduction has been successfully employed for the removal of nitrate from ground water [31,32]. Reduction of nitrate ions in an electrochemical cell can be carried out under acidic, neutral or basic conditions [33][34][35][36][37][38][39][40] using a variety of electrodes [41][42][43][44][45][46][47][48]. Nevertheless, the reduction of nitrate in acidic solutions takes place at more positive potentials and hence, a more favorable process [27].…”

Section: Introductionmentioning

confidence: 99%

Kinetics of reduction of nitric acid by electrochemical method and validation of cell design for plant application

Mishra

Lawrence

Mallika

et al. 2015

Electrochimica Acta

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Electrochemical reduction of nitrate using various anodes and a Cu/Zn cathode

Cited by 100 publications

References 18 publications

Applying electro-Fenton process as an alternative to a slaughterhouse effluent treatment

Applying electro-Fenton process as an alternative to a slaughterhouse effluent treatment

Influence of Operational Parameters on Rapid Nitrate Removal Using an Electrochemical Flow Cell

Kinetics of reduction of nitric acid by electrochemical method and validation of cell design for plant application

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