Concept of in-Oil Project Based on Bioconversion of by-Products From Food Processing Industry

Czekała, Wojciech

doi:10.12911/22998993/76211

Cited by 15 publications

(12 citation statements)

References 18 publications

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“…The samples of extruded corn straw were analyzed for biogas efficiency using standard methods (DIN 38414/S8 and VDI 4630). Biogas production was carried out in a multi-chamber biofermentors at the Ecotechnologies Laboratory of the Institute of Biosystems Engineering, Poznań University of Life Sciences ( Scheme 1 ) [ 30 , 31 ]. Fermentation reactors with a capacity of 2 dm 3 were filled with inoculum (separated liquid fraction of digestate from real scale agricultural biogas) and extruded corn straw processed under different conditions.…”

Section: Methodsmentioning

confidence: 99%

“… A design of biofermentor for biogas production research (3-chamber section): 1—water heater with temperature regulator, 2—water pump, 3—insulated conductors of calefaction liquid, 4—water coat, 5—biofermentor with the charge capacity of 2 dm 3 , 6—sampling tubes, 7—biogas transporting tube, 8—gas sampling valve, 9—biogas volume-scale reservoir [ 31 ]. …”

Section: Figures Scheme and Tablesmentioning

confidence: 99%

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The Influence of Corn Straw Extrusion Pretreatment Parameters on Methane Fermentation Performance

et al. 2020

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The aim of the study is to determine the energy consumption of the extrusion-cooking process of corn straw under various conditions (screw speed, moisture content), water absorption measurements and water solubility indices as well as biogas efficiency evaluation. The extrusion-cooking of corn straw was carried out using a single screw extruder with L/D = 16:1 at various rotational screw speeds (70, 90, and 110 rpm) and with various initial moisture content of raw material (25 and 40%). Prior to the process, the moisture content of the raw material was measured, and next, it was moistened to 25 and 40% of dry matter. For example, at 70 rpm extruder screw speed, the temperature range was 126–150 °C. Energy consumption of straw pretreatment through extrusion-cooking was assessed in order to evaluate the possibility of using the process in an agricultural biogas plant. Biogas and methane efficiency of substrates after extrusion was tested in a laboratory scale biogas plant and expressed as a volume of cumulative methane production for fresh matter, dry matter, and dry organic matter. Pretreated corn straw moistened to 25% and processed at 110 rpm during the extrusion-cooking processing produced the most advantageous effect for methane and biogas production (51.63%) efficiency as compared to corn straw without pretreatment (49.57%). Rotational speed of the extruder screw influenced biogas and methane production. With both dry matter and dry organic matter, the increase of rotational speed of the extruder screw improved the production of cumulated biogas and methane. Pretreatment of corn straw has a positive effect on the acquisition of cumulated methane (226.3 Nm3 Mg−1 for fresh matter, 243.99 Nm3 Mg−1 for dry matter, and 254.83 Nm3 Mg−1 for dry organic matter). Preliminary analysis of infrared spectra revealed changes in the samples also at the molecular level, thus opening up the possibility of identifying marker bands that account for specific degradation changes.

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Section: Methodsmentioning

confidence: 99%

Section: Figures Scheme and Tablesmentioning

confidence: 99%

The Influence of Corn Straw Extrusion Pretreatment Parameters on Methane Fermentation Performance

et al. 2020

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“…An example would be Hermetia illucens (Black soldier fly) larvae. These larvae are characterized by a rapid biomass growth as well as high protein and fat content in dry matter (Czekała, 2017, Kierończyk et al, 2019.…”

Section: Introductionmentioning

confidence: 99%

Food Waste Management Using Hermetia Illucens Insect

Czekała¹,

Janczak²,

Cieślik³

et al. 2020

J. Ecol. Eng.

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In modern agricultural biogas plants, the biowastes are being increasingly used for the biogas production. The food waste is also widely used in larvae breeding. This is an important because, based on biowaste, its proper management and green energy production is possible. This study aims to determine the biogas and methane efficiency of the Hermetia illucens larvae that were fed using the food waste. In the research on the biogas and methane efficiency, the Hermetia illucens larvae were used. The total solids (TS) of the substrate equals 30.35%, and the volatile solids (VS) content was 92.31% of TS. The larvae were fed only with the food waste of plant origin. The obtained substrates were homogeneous. The experiment was carried out under mesophilic anaerobic digestion conditions-39°C in the 21-chamber biofermentor set in the Institute of Biosystems Engineering in Poznań University of Life Sciences. The anaerobic digestion process in the batch reactor ran correctly. Fermentation inhibition was not detected. The biogas efficiency for larvae amounted to 198.75 m 3 •Mg-1 fresh mass (FM). On the other hand,the methane efficiency, amounted to 127.73 m 3 •Mg-1 , at the methane concentration of 64.27%. On the basis of the research, it was found that the larvae feeding on food waste can be used directly as anaerobic digestion in the bioconversion process.

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“…In Poland, excluding small and micro installations, there are 93 units with a total capacity of approximately 101 MW [http://www.arr.gov.pl], with a tendency of their dynamic development. The investors planning to build a biogas plant have to remember that it is necessary to have the right amount of substrates for proper functioning, with the lowest possible impact on environment, agriculture and the sector itself [Czekała, 2017a;Cieślik et al, 2016]. The purpose of the following work is to analyze the impact of the agricultural biogas plants on the food sector.…”

Section: Introductionmentioning

confidence: 99%

Agricultural Biogas Plants as a Chance for the Development of the Agri-Food Sector

Czekała¹

2018

J. Ecol. Eng.

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Agricultural biogas plants are an important source of energy, where the substrates from agricultural crops can be used. However, these plants need a daily input of biomass in the quantities up to several dozen tons. A few years ago, the most important substrate used for biogas production was maize silage. However, currently, there is a trend to limit the use of the afore-mentioned substrate. This is mainly due to the high cost of the substrate and the conflict over the rational use of valuable soils for biomass production for energy purposes. In the paper, the author undertook the attempts to discuss the possibility of limiting the use of raw vegetable materials for energy production, replacing them with agri-food production waste.

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Concept of in-Oil Project Based on Bioconversion of by-Products From Food Processing Industry

Cited by 15 publications

References 18 publications

The Influence of Corn Straw Extrusion Pretreatment Parameters on Methane Fermentation Performance

The Influence of Corn Straw Extrusion Pretreatment Parameters on Methane Fermentation Performance

Food Waste Management Using Hermetia Illucens Insect

Agricultural Biogas Plants as a Chance for the Development of the Agri-Food Sector

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