Photocatalytic detoxification with the thin-film fixed-bed reactor (TFFBR): Clean-up of highly polluted landfill effluents using a novel TiO2-photocatalyst

Bekbölet, Miray; Lindner, Martin; Weichgrebe, Dirk; Bahnemann, Detlef W.

doi:10.1016/0038-092x(96)00020-5

Cited by 81 publications

(33 citation statements)

References 6 publications

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“…Further increase in the addition (4 g/l) decreases the degradation slightly. Similar enhancements by the addition of S 2 O 8 2-have been reported earlier (Bekholet et al,1996;Minero et al,1996) Addition of persulphate to photocatalytic processes enhances the decolourisation rate by the following ways:…”

Section: Effect Of Addition Of H 2 Osupporting

confidence: 79%

Photocatalytic degradation of Vat Yellow 4 using UV/TiO2

Singaravelan¹,

Palanisamy²

2010

MAS

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The photocatalytic degradation of an anthraquinone dye Vat Yellow 4 in aqueous solution with TiO 2 -P25 (Degussa) as photocatalyst has been investigated under solar and UV irradiation. The study on the effect of various photocatalysts reveals that TiO 2 is the best catalyst in comparison to other commercial photocatalysts. The effect of operational parameters such as catalyst loading and initial dye concentration on the decolourisation and degradation under UV irradiation in TiO 2 suspension has been investigated to find out the optimum conditions. The decolourisation and degradation kinetics was found to follow first-order kinetics. A study on the effect of electron acceptors reveals that both decolourisation and degradation increase in the presence of the electron acceptors such as H 2 O 2 , (NH 4 ) 2 S 2 O 8 and KBrO 3 up to an optimum dosage beyond which the enhancement effect is negligible. The presence of inorganic additives was found to decrease the degradation.

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Section: Effect Of Addition Of H 2 Osupporting

confidence: 79%

Photocatalytic degradation of Vat Yellow 4 using UV/TiO2

Singaravelan¹,

Palanisamy²

2010

MAS

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“…Further, aromatic compounds will be adsorbed more than aliphatic compounds because aromatic compounds have an electron-rich centre, which facilitates good adsorption. Bekbolt et al 24 have reported that UVabsorbing aromatics degraded faster than aliphatics in their study on landfill effluents. Similarly the aromatic compound DPA degraded faster than the aliphatic compound MCP.…”

Section: Effect Of Initial Pesticide Concentrationmentioning

confidence: 98%

Novel thin‐film reactor for photocatalytic degradation of pesticides in an aqueous solution

Shankar

Anandan

Venkatachalam

et al. 2004

J of Chemical Tech & Biotech

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“…Wastewater was dispersed over the top of the coated plate via a multichannel peristaltic pump. In a single pass experiment, 52% reduction of TOC and 56% reduction of COD were achieved at a flow rate of 1.5 L/h [104].…”

Section: Falling Film Photoreactormentioning

confidence: 99%

TiO2 Solar Photocatalytic Reactor Systems: Selection of Reactor Design for Scale-up and Commercialization—Analytical Review

2016

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For the last four decades, viability of photocatalytic degradation of organic compounds in water streams has been demonstrated. Different configurations for solar TiO 2 photocatalytic reactors have been used, however pilot and demonstration plants are still countable. Degradation efficiency reported as a function of treatment time does not answer the question: which of these reactor configurations is the most suitable for photocatalytic process and optimum for scale-up and commercialization? Degradation efficiency expressed as a function of the reactor throughput and ease of catalyst removal from treated effluent are used for comparing performance of different reactor configurations to select the optimum for scale-up. Comparison included parabolic trough, flat plate, double skin sheet, shallow ponds, shallow tanks, thin-film fixed-bed, thin film cascade, step, compound parabolic concentrators, fountain, slurry bubble column, pebble bed and packed bed reactors. Degradation efficiency as a function of system throughput is a powerful indicator for comparing the performance of photocatalytic reactors of different types and geometries, at different development scales. Shallow ponds, shallow tanks and fountain reactors have the potential of meeting all the process requirements and a relatively high throughput are suitable for developing into continuous industrial-scale treatment units given that an efficient immobilized or supported photocatalyst is used.

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Photocatalytic detoxification with the thin-film fixed-bed reactor (TFFBR): Clean-up of highly polluted landfill effluents using a novel TiO2-photocatalyst

Cited by 81 publications

References 6 publications

Photocatalytic degradation of Vat Yellow 4 using UV/TiO2

Photocatalytic degradation of Vat Yellow 4 using UV/TiO2

Novel thin‐film reactor for photocatalytic degradation of pesticides in an aqueous solution

TiO2 Solar Photocatalytic Reactor Systems: Selection of Reactor Design for Scale-up and Commercialization—Analytical Review

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