Hybrid Fenton Oxidation Processes with Packed Bed or Fluidized Bed Reactor for the Treatment of Organic Pollutants in Wastewater: A Review

2020 ◽  
Author(s):  
Titikshya Mohapatra ◽  
Vijyendra Kumar ◽  
Manisha ◽  
Prabir Ghosh
Keyword(s):  
Fluidized Bed ◽  
Organic Pollutants ◽  
Fluidized Bed Reactor ◽  
Packed Bed ◽  
Fenton Oxidation ◽  
Oxidation Processes

Factors Affecting Fenton Oxidation of Acetaminophen in a Fluidized-Bed Reactor

2014 ◽  
Vol 140 (1) ◽  
pp. 77-83 ◽  
Author(s):  
Rowena M. Briones ◽  
Mark Daniel G. de Luna ◽  
Chia-Chi Su ◽  
Ming-Chun Lu
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Fenton Oxidation ◽  
Factors Affecting

scholarly journals Model-Based Quality, Exergy, and Economic Analysis of Fluidized Bed Membrane Reactors

Membranes ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 765
Author(s):  
Tabassam Nafees ◽  
Adnan Ahmed Bhatti ◽  
Usman Khan Jadoon ◽  
Farooq Ahmad ◽  
Iftikhar Ahmad ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Plug Flow ◽  
Aspen Plus ◽  
Fluidized Bed Reactor ◽  
Packed Bed ◽  
Membrane Reactors ◽  
Flow Reactors ◽  
Diffusion Limitations ◽  
Naphtha Reforming ◽  
Petroleum Refineries

In petroleum refineries, naphtha reforming units produce reformate streams and as a by-product, hydrogen (H2). Naphtha reforming units traditionally deployed are designed as packed bed reactors (PBR). However, they are restrained by a high-pressure drop, diffusion limitations in the catalyst, and radial and axial gradients of temperature and concentration. A new design using the fluidized bed reactor (FBR) surpasses the issues of the PBR, whereby the incorporation of the membrane can improve the yield of products by selectively removing hydrogen from the reaction side. In this work, a sequential modular simulation (SMS) approach is adopted to simulate the hydrodynamics of a fluidized bed membrane reactor (FBMR) for catalytic reforming of naphtha in Aspen Plus. The reformer reactor is divided into five sections of plug flow reactors and a continuous stirrer tank reactor with the membrane module to simulate the overall FBMR process. Similarly, a fluidized bed reactor (FBR), without membrane permeation phenomenon, is also modelled in the Aspen Plus environment for a comparative study with FBMR. In FBMR, the continuous elimination of permeated hydrogen enhanced the production of aromatics compound in the reformate stream. Moreover, the exergy and economic analyses were carried out for both FBR and FBMR.

Biohydrogen production from soft drink industry wastewater in an anaerobic fluidized bed reactor

2019 ◽  
Vol 14 (3) ◽  
pp. 579-586
Author(s):  
V. S. Menezes ◽  
N. C. S. Amorim ◽  
W. V. Macêdo ◽  
E. L. C. Amorim
Keyword(s):  
Fluidized Bed ◽  
Soft Drink ◽  
Fluidized Bed Reactor ◽  
Packed Bed ◽  
Operating Conditions ◽  
Hydrogen Yield ◽  
Packed Bed Reactors ◽  
Carbonated Soft Drinks ◽  
Anaerobic Fluidized Bed Reactor ◽  
Metabolites Production

Abstract The wastewater from carbonated soft drinks production was used as substrate in an anaerobic fluidized bed reactor (AFBR) to evaluate the production of biohydrogen as a renewable energy. The hydraulic retention time (HRT) ranged from 8 to 0.5 hours (7.92 to 137.09 kg COD m−3 day−1) throughout the experiment and expanded clay was used as support material for biomass adhesion. The average composition of hydrogen in the biogas under the conditions of this experiment was 34%. The maximum hydrogen yield (HY) and the maximum hydrogen production rate (HPR) was 5.87 mol H2/mol substrate and 2.74 L H2 h−1 L−1, respectively, obtained in the HRT of 0.5 hour. Acetic acid was the predominant soluble metabolite detected (88%). Propionic, butyric and caproic acids were quantified with low production (7%, 4% and 1% of soluble metabolites production (SMP)). The anaerobic fluidized bed reactor optimized the average of hydrogen yield by 17% in relation to packed-bed reactors, in a HRT of 0.5 h. The natural fermentation process and operating conditions were favorable to the inhibition of hydrogen-consuming organisms, such as methanogenic archaeas.

Kinetics of acetaminophen degradation by Fenton oxidation in a fluidized-bed reactor

Chemosphere ◽  
2013 ◽  
Vol 90 (4) ◽  
pp. 1444-1448 ◽  
Author(s):  
Mark Daniel G. de Luna ◽  
Rowena M. Briones ◽  
Chia-Chi Su ◽  
Ming-Chun Lu
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Fenton Oxidation ◽  
Kinetics Of
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