Management of bio fraction waste for two-stage biohydrogen production with simultaneous treatment of gaseous streams with green solvents

The scientific aim of the project is to determine the effect of divesrified process parameters on the efficiency of biohydrogen generation via biological processes. The project covers research with the use of model bio fraction waste in order to prepare the fermentation batch by the means of chemical hydrolysis methods. Bio waste fractions amount can be egual up to 15% of the total waste amount received at the landfill. Lignocellulose and starch based raw materials are often applied in the investigations regarding biohydrogen generation using dark fermentation microorganisms of anaerobic digestion. The literature lacks information regarding model mixtures of lignocellulose and starch based biomass, while the research are carried on the basis of a single type of raw material. This type of waste frequently arises, therefore the authors see a certain niche in the anaerobic digestion analysis carried for mixtures corresponding to real mixtures. The matrix of chemical compounds resulting from pretreatment of mentioned mixtures may be more complex. It should be pointed that there are no data concerning this topic in the literature thus the obtained results will complete the actual state of knowledge. Dark hydrogen fermentation involves the conversion of simple sugars to hydrogen, carbon dioxide and ethanol or organic acids (most often these are acetic, lactic and butyric acids. The post-fermentation broth containing organic acids may be next applied in photofermentation with the application of microorganisms able to convert organic acids to hydrogen. In order to decrease the COD of remaining broth, biorefining, methanization and microbiological electrolysis are considered. Fermentation broth contains unused remnants of monosugars. Selection of chemical conditions, allowing to carry a conversion of the remained sugars to certain chemical compounds is planned as a biorefing aspect of the investigation. It is possible to convert remaining xylose and glucose to hydroxymethylfurfural (HMF), levulinic acid (LA) and furfural (F) in acidic conditions. Successful results in this approach would enable the authors to synthetise the precursors of deep eutectic solvents, that are planned to be applied in the purification of the generated gas streams containg biohydrogen and other components. The authors propose investions on a multistep bioconversion process allowing to obtain purified biohydrogen stream generated during dark fermentation and photofermentation.

Details

Financial Program Name:: OPUS
Organization:: Narodowe Centrum Nauki (NCN) (National Science Centre)
Agreement:: UMO-2021/41/B/ST8/02395 z dnia 2021-11-26
Realisation period:: 2022-01-21 - 2026-01-20
Project manager:: dr hab. inż. Jacek Gębicki
Realised in:: Department of Process Engineering and Chemical Technology
Request type:: National Research Programmes
Domestic:: Domestic project
Verified by:: Gdańsk University of Technology

Papers associated with that project

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total: 5

Year 2024

Removal of phenolic inhibitor compounds from hydrolysates and post-fermentation broths by using a Hydrophobic Magnetic Deep Eutectic Solvent
Publication
- Z. Honarmandrad
- K. Kucharska
- M. Kaykhaii
- J. Gębicki
- Journal of Environmental Chemical Engineering - Year 2024
Hydroxymethylfurfural (HMF), furfural (FF), hydroquinone (HQ), and vanillin (VAN) are among the main inhibitors generated during most of biomass pre-treatments prior to fermentation processes. They are recognized as toxic to several fermentative microorganisms and therefore cause a decrease in biohydrogen or biofuel production (after hydrolysis). Moreover, if they are released into aqueous solutions (after fermentation), they can...

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Year 2023

Extractive detoxification of hydrolysates with simultaneous formation of deep eutectic solvents
Publication
- Chemical and Process Engineering : New Frontiers - Year 2023
The hydrolysis of lignocellulosic biomass results in the production of so-called fermentation inhibitors, which reduce the efficiency of biohydrogen production. To increase the efficiency of hydrogen production, inhibitors should be removed from aqueous hydrolysate solutions before the fermentation process. This paper presents a new approach to the detoxification of hydrolysates with the simultaneous formation of in-situ deep eutectic...

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Pre-treatment of bio fraction waste prior to fermentation processes
Publication
- Chemical and Process Engineering : New Frontiers - Year 2023
Current efforts are taken to increase resource efficiency, close material loops, and improve sustainable waste and by-products management. Thus, networking agro-food by-products and converting them into valuable products completely exhausting the potential of the raw material becomes significant. Model lignocellulosic and starch based biomass were subjected to pre-treatment with the application of acidic compounds, i.e. sulphuric...

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Year 2022

Processing of Biomass Prior to Hydrogen Fermentation and Post-Fermentative Broth Management
Publication
- MOLECULES - Year 2022
Using bioconversion and simultaneous value-added product generation requires purifica- tion of the gaseous and the liquid streams before, during, and after the bioconversion process. The effect of diversified process parameters on the efficiency of biohydrogen generation via biological pro- cesses is a broad object of research. Biomass-based raw materials are often applied in investigations regarding biohydrogen generation using...

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Zwiększenie wydajności hydrolizy enzymatycznej biomasy wskutek obróbki mechanicznej
Publication
- K. Kucharska
- J. Gębicki
- Year 2022
Wytwarzanie biogazu z biomasy odpadowej i innych odpadów frakcji Bio wymaga zastosowania etapu obróbki wstępnej. W literaturze opublikowano szereg prac związanych z obróbką mechaniczną, fizyczną, fizykochemiczną, chemiczną, a także biologiczną i enzymatyczną surowców o bogatej matrycy związków chemicznych. Na znaczeniu zyskują metody pozwalające jednocześnie uzyskać biopaliwo gazowe, ale także ciekłe produkty depolimeryzacji, które...

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