Electrochemical decrease of sulfide in sewage by pulsed power supply

Lu, Zhihao; Tang, Jiali; Mendoza, María de Lourdes; Dingming, Chang; Cai, Lankun; Zhang, Lehua

doi:10.1016/j.jelechem.2015.02.014

Cited by 30 publications

(6 citation statements)

References 36 publications

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“…Chronoamperometry (CA) pulsed treatment.-Electrode fouling impedes the continuous and efficient electrolysis of p-cresol at a constant potential. Pulsed chronoamperometry (CA) has been proposed as a mitigation strategy to achieve higher removal rates compared to constant current 36,37 and to inhibit anodic passivation. 36 Pulsed CA was explored as a method to inhibit electrode fouling during p-cresol bulk electrolysis.…”

Section: Resultsmentioning

confidence: 99%

“…Pulsed chronoamperometry (CA) has been proposed as a mitigation strategy to achieve higher removal rates compared to constant current 36,37 and to inhibit anodic passivation. 36 Pulsed CA was explored as a method to inhibit electrode fouling during p-cresol bulk electrolysis. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Hence, strategies to inhibit electrode fouling need to be explored. As an alternative to constant potential (chronoamperometry, CA), pulsed techniques have been proposed to achieve higher removal rates 36,37 and to inhibit anodic passivation. 36 In contrast to the electrode fouling in graphite, BDD allows electrode preservation and regeneration.…”

mentioning

confidence: 99%

“…As an alternative to constant potential (chronoamperometry, CA), pulsed techniques have been proposed to achieve higher removal rates 36,37 and to inhibit anodic passivation. 36 In contrast to the electrode fouling in graphite, BDD allows electrode preservation and regeneration. BDD has advantages such as a wide potential window, inert surface with low adsorption properties 38 and surface regeneration by pre-anodization.…”

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confidence: 99%

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Electrochemical Modulation of Odorant Molecule: A Study of p-cresol

Vasquez

Ngaboyamahina

2020

J. Electrochem. Soc.

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p-Cresol modulation was for the first time evaluated as an alternative option for odor control in sanitation facilities. Results indicate that the oxidation of p-cresol can generate 4-hydroxybenzaldehyde (4-HB), a molecule with a sweet-woody odor, following the introduction of chloride ions into the supporting electrolyte. In an attempt to impede electrode fouling, pulsed chronoamperometry (CA) was implemented and resulted in ∼10% higher p-cresol removal compared to CA at constant potential. Boron doped diamond (BDD) was also explored as an alternative working electrode. p-Cresol oxidation on the diamond surface resulted in higher removal percentages, but the desired oxidation product was not detected by Liquid chromatography–mass spectrometry (LC-MS) likely due to complete combustion.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Electrochemical Modulation of Odorant Molecule: A Study of p-cresol

Vasquez

Ngaboyamahina

2020

J. Electrochem. Soc.

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“…[ 1 2 _ T D $ D I F F ] Application of pulse current supply. Lu et al [22] showed that a pulsed electrochemical process is a promising method for efficient and sustainable sulphide removal from sewage, indicating that the anodic passivation is inhibited.…”

Section: Introductionmentioning

confidence: 99%