Characterization of nanofibrous carbon produced at pilot-scale in a fluidized bed reactor by methane decomposition

The characterization of the biofilm of an anaerobic fluidized-bed reactor was completed under standard conditions. The distribution of the fixed protein concentration depended on the level in the reactor. The protein concentration reached 1520 µg.g−1 of support at the top of the reactor and only 1200 µg.g−1 at the bottom after 504 hours of operation but the specific activity of the biofilm was 33×10−4 µM acetate.h−1.mg−1 proteins at the bottom and only 26×10−4 µM.h−1.mg−1 at the top. The efficiency of a fluidized bed reactor and the composition of the biofilm changed with an increase of the pH from 7 to 8.5 during the seeding of the support material. Future development of the biofilm and the specific activity of the support were affected.

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Las degradation in a fluidized bed reactor and phylogenetic characterization of the biofilm

Brazilian Journal of Chemical Engineering ◽

10.1590/s0104-66322013000300010 ◽

2013 ◽

Vol 30 (3) ◽

pp. 521-529 ◽

Cited By ~ 10

Author(s):

L. L. Oliveira ◽

R. B. Costa ◽

I. K. Sakamoto ◽

I. C. S. Duarte ◽

E. L. Silva ◽

...

Keyword(s):

Fluidized Bed ◽

Fluidized Bed Reactor ◽

Phylogenetic Characterization

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Co-gasification of refused derived fuel and biomass in a pilot-scale bubbling fluidized bed reactor

Energy Conversion and Management ◽

10.1016/j.enconman.2020.112476 ◽

2020 ◽

Vol 206 ◽

pp. 112476 ◽

Cited By ~ 10

Author(s):

D.T. Pio ◽

L.A.C. Tarelho ◽

A.M.A. Tavares ◽

M.A.A. Matos ◽

V. Silva

Keyword(s):

Fluidized Bed ◽

Fluidized Bed Reactor ◽

Pilot Scale ◽

Bubbling Fluidized Bed

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Morphology and Elemental Composition of Product Obtained from Struvite Fluidized Bed Reactor

Civil and Environmental Engineering Reports ◽

10.2478/ceer-2018-0025 ◽

2018 ◽

Vol 28 (2) ◽

pp. 139-149

Author(s):

Franciszek Bydałek ◽

Anna Kula ◽

Jacek Mąkinia

Keyword(s):

Fluidized Bed ◽

Energy Dispersive Spectrometer ◽

Treatment Plant ◽

Fluidized Bed Reactor ◽

Pilot Scale ◽

X Ray Diffraction ◽

Distant Future ◽

Struvite Precipitation ◽

Ph Level ◽

Highly Porous

Abstract Phosphorus scarcity is no longer a distant future, therefore the idea of phosphoru recovery is currently widely adopted and developed. Technologies based on the struvite precipitation are consider to address the future P challenges in the optimum way. This paper presents the results of the pilot scale implementation of fluidized bed reactor for struvite precipitation at the wastewater treatment plant. The test was carried out to assess the applicability of the technology in terms of robustness and final product quality, operating at low pH level (7,5-7,8). Obtained struvite pellets were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) with an energy dispersive spectrometer (EDS). The presence of foreign ions and particulate impurities in the feed source, affected the uniform growth of the crystal structure, resulting in highly porous structure of the pellets. Despite the varying physiochemical conditions, typical for wastewater, obtained pellets were determined with 95% struvite purity.

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