Anaerobic fluidized bed reactor with expanded clay as support for hydrogen production through dark fermentation of glucose

Amorim, Eduardo Lucena Cavalcante de; Barros, Aruana Rocha; Damianovic, Márcia Helena Rissato Zamariolli; Silva, Edson Luiz

doi:10.1016/j.ijhydene.2008.11.007

Cited by 115 publications

(14 citation statements)

References 31 publications

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“…With a decrease in pH, ORP increases from -414 mV at pH = 7.0 to 0 mV at pH = 0.0. For anaerobic microorganisms fermenting glucose with the formation of Н 2 , the optimal ORP value is in the range from -380 to -414 mV (Cavalcante de Amorima et al, 2009;Wang et al, 2012;Tashyreva et al, 2017). Fig.…”

Section: Resultsmentioning

confidence: 99%

Integrated Approach for Development of Environmental Biotechnologies for Treatment of Solid Organic Waste and Obtaining of Biohydrogen and Lignocellulosic Substrate

Hovorukha

Tashyrev

Матвєєва

et al. 2019

EREM

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Solid food waste is a significant threat to the environment. Thermodynamic calculations allow determining theoretically possible metabolic pathways for degradation of organic compounds by microorganisms, and to select the optimal one to increase efficiency of food waste recycling. The purpose of our work was application of thermodynamic calculations to find out suitable fermentation parameters for regulation of microbial metabolism Environmental Research, Engineering and Management 2018/74/4 32 to ensure a high rate of waste decomposition and formation of valuable products. The following methods were used: colorimetric and potentiometric for pH and oxidation-reduction potential (ORP) measurement, volumetric and chromatographic for the study of volume and composition of synthesised gas, and mathematical for fermentation parameters calculation. Fermentation of multicomponent kitchen food waste under theoretically calculated optimal parameters pH = 7.0 and Eh in the range form-250 to-350 mV provided extremely high metabolic activity of a hydrogen-producing microbial community, which resulted in a decrease in duration of batch fermentation to three days and an increase in hydrogen yield from 16 to 80-115 L/kg of dry waste. The coefficient of waste destruction (Kd), i.e., the ratio of initial and final weight of waste, reached 91. Obtained after fermentation, an unfermented lignocellulosic substrate was shown to be applied as plant probiotics and to supply mineral nitrogen for plant nutrition in an arid condition. Thus, high efficiency of application of a thermodynamic prognosis method of microbial interaction with organic compounds was shown to become the base for biotechnology of destruction of environmentally hazardous solid food waste with simultaneous obtainment of valuable products: environmentally friendly energy carrier-molecular hydrogen, as well as a lignocellulosic substrate to increase crop yields.

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Section: Resultsmentioning

confidence: 99%

Integrated Approach for Development of Environmental Biotechnologies for Treatment of Solid Organic Waste and Obtaining of Biohydrogen and Lignocellulosic Substrate

Hovorukha

Tashyrev

Матвєєва

et al. 2019

EREM

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“…In this regard, hydrogen fits the bill perfectly, given its environmentally friendly characteristics, with water being the only by-product generated as a consequence of combustion with oxygen. Hydrogen has a high energy yield of 122 kJ/g, which is 2.75 times greater than that of hydrocarbon fuels (Cavalcante de Amorim et al, 2009). Biologically, hydrogen can be produced through photo-fermentation and dark fermentation processes.…”

Section: Introductionmentioning

confidence: 99%

Co-digestion of Oil Palm Trunk Hydrolysate and Slaughterhouse Wastewater for Biohydrogen Production in a Fixed Bed Reactor by Immobilized Thermoanaerobacterium thermosaccharolyticum KKU19 on Expanded Clay

et al. 2021

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The goal of this study was to evaluate the use of expanded clay as a support material for Thermoanaerobacterium thermosaccharolyticum KKU19 to produce hydrogen from oil palm trunk hydrolysate (OPT) and slaughterhouse wastewater (SHW) in a fixed-bed reactor (FBR) under non-sterile conditions. The effects of hydraulic retention time (HRT) on the performance of the FBR were also investigated. The FBR was operated at an OPT hydrolysate to SHW ratio of 2.55:1 (v:v), 60°C, initial pH 6.5, and 1.2 mg (as total volatile solids/g expanded clay) of T. thermosaccharolyticum KKU19 immobilized on expanded clay. A maximum hydrogen production rate (HPR) and hydrogen yield (HY) of 7.15 ± 0.22 L/L day and 234.45 ± 5.14 mL H2/g-COD, respectively, were obtained at an HRT of 6 h. Long-term operation of FBR at 6 h HRT indicated that expanded clay efficiently immobilizes T. thermosaccharolyticum KKU19, for which an HPR of 6.82 ± 0.56 L H2/L day, and an HY of 231.99 ± 19.59 mL H2/g-COD were obtained. Furthermore, the COD removal efficiency of 30% obtained under long-term operation was comparable to that under short-term operation at an HRT of 6 days. Butyric and acetic acids were the main soluble metabolite products, thereby indicating a butyrate–acetate type fermentation. Our findings indicate that expanded clay is an effective support material that contributes to the protection of microbial cells and can be used for long-term operation.

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“…The latter is the one of most interest due to its low energetic cost, since the raw material are liquid and solid wastes easily available. Hydrogen production by dark fermentation has advantages over other processes due to its capacity to produce hydrogen in a continuous manner, by using diverse raw materials, and because it does not depend from solar light (Cavalcante et al, 2009;Fontes et al, 2013). Strictly anaerobic bacteria, generally spore-forming named Clostridium or, facultative anaerobic bacteria like the Bacillus and Enterobacter genre can intervene in this process.…”

Section: Introductionmentioning

confidence: 99%

“…Several factors must be taken into account for their conception and design especially in choosing the supporting materials. Cavalcante et al (2009) points out that factors such as shape, density of particles, porosity and the superficial area must be taken into account as these factors contribute to high hydrogen production performance.…”

Section: Introductionmentioning

confidence: 99%

Effect of Organic Loading Rate in Hydrogen Production with Different Support Materials in Anaerobic Fixed-Bed Reactors

Mendez-Revollo

Torres-Arevalo

Rodríguez-Chaparro

2017

IIT

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The objective of this study is to evaluate the effect of the organic loading rate in anaerobic fixed-bed reactors using two support materials which were crumb rubber (recycled tires) and biopack ® with a hydraulic retention time (HRT) of 8h. The organic loading rate was modified with the sucrose concentration, with values of 6000 mg.L -1 , 12000 mg.L -1 and 18000 mg.L 1 . The results showed that the increased loading rate resulted in a reduction of both the production of hydrogen and the sucrose conversion for both supporting materials. The maximum value of hydrogen production and sucrose conversion was 50.9 % and 88% for the crumb rubber reactor, and 56.1 % and 74.4 % for the biopack reactor, for a loading rate of 11.26 g COD.L -1 . d -1 . In this loading rate, stability was observed in H 2 production. The ANOVA test showed statistically significant influence for both the loading rate effect and the supporting material type in the hydrogen production.Keywords: Biopack®, clean energy, recycled tires, sucrose, volatile organic acid. Resumen

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Anaerobic fluidized bed reactor with expanded clay as support for hydrogen production through dark fermentation of glucose

Cited by 115 publications

References 31 publications

Integrated Approach for Development of Environmental Biotechnologies for Treatment of Solid Organic Waste and Obtaining of Biohydrogen and Lignocellulosic Substrate

Integrated Approach for Development of Environmental Biotechnologies for Treatment of Solid Organic Waste and Obtaining of Biohydrogen and Lignocellulosic Substrate

Co-digestion of Oil Palm Trunk Hydrolysate and Slaughterhouse Wastewater for Biohydrogen Production in a Fixed Bed Reactor by Immobilized Thermoanaerobacterium thermosaccharolyticum KKU19 on Expanded Clay

Effect of Organic Loading Rate in Hydrogen Production with Different Support Materials in Anaerobic Fixed-Bed Reactors

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