Microbial Degradation of Phenol in a Modified Three‐Stage Airlift Packing‐Bed Reactor

Huang, Cheng-Hsien; Liou, Rey‐May; Chen, Shih‐Hsiung; Hung, Mu-Ya; Lai, Cheng-Lee; Lai, Juin‐Yih

doi:10.2175/106143009x447885

Cited by 6 publications

(2 citation statements)

References 33 publications

(29 reference statements)

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“…Polluted water is harmful to human health and the ecosystem [1,2]. In this context, several efforts have been made to completely remove phenolic contaminants from wastewater using conventional methods, including adsorption [3,4], distillation [5], biological treatments [6], and chemical oxidation [7]; however, these techniques have their demerits. Heterogeneous photocatalysis has proven to be an effective and feasible method for removing organic contaminants, producing CO 2 and mineral salts as byproducts [8].…”

Section: Introductionmentioning

confidence: 99%

Efficient Advanced Oxidation Process (AOP) for Photocatalytic Contaminant Degradation Using Exfoliated Metal-Free Graphitic Carbon Nitride and Visible Light-Emitting Diodes

et al. 2021

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The photocatalytic performance of metal-free graphitic carbon nitride (g-C3N4) was examined using visible light-emitting diodes (LEDs). A comparative and parametric study was conducted using the photocatalytic degradation of phenol as a model reaction. The g-C3N4 photocatalyst was synthesized from melamine using thermal condensation, followed by a thermal exfoliation that increases the catalyst surface area from 11 to 170 m2/g. Different characterization techniques, namely X-ray powder diffraction, X-ray photoelectron spectroscopy, nitrogen adsorption using the Brunauer–Emmett–Teller method, ultraviolet-visible (UV–vis) spectroscopy, transmission electron microscopy, photoluminescence spectroscopy (PL), and zeta potential analysis, were used to characterize the photocatalyst. A comparison of the photodegradation experiments conducted with a full-spectrum xenon lamp and a custom-made single-wavelength LED immersion lamp showed that the photocatalyst performance was better with the LED immersion lamp. Furthermore, a comparison of the performance of exfoliated and bulk g-C3N4 revealed that exfoliated g-C3N4 completely degraded the pollutant in 90 min, whereas only 25% was degraded with bulk g-C3N4 in 180 min because the exfoliated g-C3N4 enhances the availability of active sites, which promotes the degradation of phenol. Experiments conducted at different pH have shown that acidic pH favors the degradation process. The exfoliated g-C3N4 has shown high photocatalytic performance in the photodegradation of other phenolic compounds, such as catechol, m-cresol, and xylenol, as well.

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Section: Introductionmentioning

confidence: 99%

Efficient Advanced Oxidation Process (AOP) for Photocatalytic Contaminant Degradation Using Exfoliated Metal-Free Graphitic Carbon Nitride and Visible Light-Emitting Diodes

et al. 2021

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“…The hydraulic residence time (HRT) and the concentration of feed phenol were shown to determine the phenol removal efficiency in a modified three-stage airlift PBBR containing a flexible packing material (Huang et al, 2010 (Vigne et al, 2010).…”

Section: Biofilm Reactorsmentioning

confidence: 99%

Biological Fixed Film

Wesley¹,

Lerner²,

Kim³

et al. 2011

Water Environment Research

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Literature published during the year 2010 on the topic of biological fixed film including biofilm and bioreactors for the purpose of water and wastewater treatment has been reviewed herein. Literature published regarding microbial fuel cells has also been included. The review has been organized into the following sections: biofilm formation, adhesion, quorum sensing, and consortia; techniques and analytic methods; biofilm reactors and modeling; and microbial fuel cells.

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Degradation of dimethyl-sulfoxide-containing wastewater using airlift bioreactor by polyvinyl-alcohol-immobilized cell beads

Lin

Hou

et al. 2011

Bioresource Technology

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Microbial Degradation of Phenol in a Modified Three‐Stage Airlift Packing‐Bed Reactor

Cited by 6 publications

References 33 publications

Efficient Advanced Oxidation Process (AOP) for Photocatalytic Contaminant Degradation Using Exfoliated Metal-Free Graphitic Carbon Nitride and Visible Light-Emitting Diodes

Efficient Advanced Oxidation Process (AOP) for Photocatalytic Contaminant Degradation Using Exfoliated Metal-Free Graphitic Carbon Nitride and Visible Light-Emitting Diodes

Biological Fixed Film

Degradation of dimethyl-sulfoxide-containing wastewater using airlift bioreactor by polyvinyl-alcohol-immobilized cell beads

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