Chemical Degradation of PCDD/F in Contaminated Sediment

Hrabák, Pavel; Homolková, M.; Černík, Miroslav

doi:10.1515/eces-2016-0034

Cited by 12 publications

(8 citation statements)

References 21 publications

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“…Heterogeneous catalytic conversion of pollutants can also be established with large variety of peroxides [13,[130][131][132][133] and iron in various valence states [134][135][136][137]. In the case of peroxides, the main aim of the catalytic activation is to weaken the O-O bond of the oxidizing agent [13,138].…”

Section: Water / Wastewater / Soilmentioning

confidence: 99%

Major Advances and Challenges in Heterogeneous Catalysis for Environmental Applications: A Review

Wacławek

Padil

Černík

2018

Ecological Chemistry and Engineering S

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Heterogeneous catalysis is one of the fastest developing branches of chemistry. Moreover, it is strongly connected to popular environment-related applications. Owing to the very fast changes in this field, for example, numerous discoveries in nanoscience and nanotechnologies, it is believed that an update of the literature on heterogeneous catalysis could be beneficial. This review not only covers the new developments of heterogeneous catalysis in environmental sciences but also touches its historical aspects. A short introduction to the mechanism of heterogeneous catalysis with a small section on advances in this field has also been elaborated. In the first part, recent innovations in the field of catalytic air, water, wastewater and soil treatment are presented, whereas in the second part, innovations in the use of heterogeneous catalysis for obtaining sustainable energy and chemicals are discussed. Catalytic processes are ubiquitous in all branches of chemistry and there are still many unsolved issues concerning them.

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Section: Water / Wastewater / Soilmentioning

confidence: 99%

Major Advances and Challenges in Heterogeneous Catalysis for Environmental Applications: A Review

Wacławek

Padil

Černík

2018

Ecological Chemistry and Engineering S

Self Cite

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“…Cai et al [58] proved that the bimetallic Fe-Co/GAC catalyst may be utilized to heterogeneously activate SPS oxidation for Acid Orange 7 degradation, which has also been proven in other studies. Also, very toxic persistent organic pollutants (POPs) can be decontaminated with persulfates [59].…”

Section: Somentioning

confidence: 99%

The application of thermally activated persulfate for degradation of Acid Blue 92 in aqueous solution

2019

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Thermally activated persulfate (TAP) was applied for the degradation of Acid Blue 92 (AB92) dye in its aqueous solution. The effects of pH (3-11), temperature (298-333 K), contact time (15-75 min), sodium persulfate (SPS) concentration (0.05-0.5 mM) and initial AB92 concentration (50-400 mg/L) on the degradation of AB92 using TAP were examined. The initial and residual AB92 concentrations were determined spectrophotometrically at the wavelength of 260 nm and the dye mineralization was examined via the total organic carbon analysis. In addition, the chemical oxygen demand was also measured. The activation energy (E a) of AB92 degradation was calculated as 17.38 kJ mol −1 based on the Arrhenius equation. Maximum degradation efficiency of 86.47% was reached after 75 min of treatment at a pH of 5, AB92 concentration of 200 mg/L, SPS concentration of 0.5 mM and temperature of 333 K. The degradation efficiency declined with the addition of different sodium chloride concentrations and organic radical scavengers. AB92 degradation was reduced from 86.5 to 74%, 65, and 59.1% using ethylenediaminetetraacetic acid, tert-butanol, and ethanol, respectively. A kinetic model was also developed to estimate the pseudo-first-order constants as a function of the main operational parameters (initial dye concentration and TAP concentration). Decolorization rate constants (k) of 0.0009, 0.001, 0.0012, 0.0014, and 0.0018 min −1 were obtained at 303, 308, 313, 328, and 333 K, respectively, using the Langmuir-Hinshelwood kinetic model. The results obtained indicate that the TAP degradation process has great potential for the reduction of azo dyes in aqueous environments.

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“…Bij een laboratoriumstudie werd hiermee een efficiëntie van 99% bereikt (Kao et al, 2000). In een studie met verschillende reagentia veroorzaakte met hitte geactiveerd persulfate (PSF) de meest significante afbraak van dioxines en furanen in gecontamineerd sediment (dioxine TEQreductie van 65%) (Hrabak et al, 2016).…”

Section: Chemische/elektrochemische Oxidatieunclassified

Technieken en toepasbaarheid voor de sanering van dioxines en TBT in het Noordzeekanaal : fase 1

Sneekes¹,

Kwadijk²,

Kotterman³

et al. 2017

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De Directie van Wageningen Marine Research is niet aansprakelijk voor gevolgschade, noch voor schade welke voortvloeit uit toepassingen van de resultaten van werkzaamheden of andere gegevens verkregen van Wageningen Marine Research opdrachtgever vrijwaart Wageningen Marine Research van aanspraken van derden in verband met deze toepassing. Dit rapport is vervaardigd op verzoek van de opdrachtgever hierboven aangegeven en is zijn eigendom. Niets uit dit rapport mag weergegeven en/of gepubliceerd worden, gefotokopieerd of op enige andere manier gebruikt worden zonder schriftelijke toestemming van de opdrachtgever.

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Chemical Degradation of PCDD/F in Contaminated Sediment

Cited by 12 publications

References 21 publications

Major Advances and Challenges in Heterogeneous Catalysis for Environmental Applications: A Review

Major Advances and Challenges in Heterogeneous Catalysis for Environmental Applications: A Review

The application of thermally activated persulfate for degradation of Acid Blue 92 in aqueous solution

Technieken en toepasbaarheid voor de sanering van dioxines en TBT in het Noordzeekanaal : fase 1

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