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Elsayad RM, Sharshir SW, Khalil A, Basha AM. Recent advancements in wastewater treatment via anaerobic fermentation process: A systematic review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121724. [PMID: 38971071 DOI: 10.1016/j.jenvman.2024.121724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/20/2024] [Accepted: 07/02/2024] [Indexed: 07/08/2024]
Abstract
This manuscript delves into the realm of wastewater treatment, with a particular emphasis on anaerobic fermentation processes, especially dark, photo, and dark-photo fermentation processes, which have not been covered and overviewed previously in the literature regarding the treatment of wastewater. Moreover, the study conducts a bibliometric analysis for the first time to elucidate the research landscape of anaerobic fermentation utilization in wastewater purification. Furthermore, microorganisms, ranging from microalgae to bacteria and fungi, emphasizing the integration of these agents for enhanced efficiency, are all discussed and compared. Various bioreactors, such as dark and photo fermentation bioreactors, including tubular photo bioreactors, are scrutinized for their design and operational intricacies. The results illustrated that using clostridium pasteurianum CH4 and Rhodopseudomonas palustris WP3-5 in a combined dark-photo fermentation process can treat wastewater to a pH of nearly 7 with over 90% COD removal. Also, integrating Chlorella sp and Activated sludge can potentially treat synthetic wastewater to COD, P, and N percentage removal rates of 99%,86%, and 79%, respectively. Finally, the paper extends to discuss the limitations and future prospects of dark-photo fermentation processes, offering insights into the road ahead for researchers and scientists.
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Affiliation(s)
- Rahma M Elsayad
- Civil Engineering Department, Faculty of Engineering, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt; Higher Institute of Engineering and Technology, Kafrelsheikh, KFS-HIET, Kafrelsheikh, 33516, Egypt
| | - Swellam W Sharshir
- Mechanical Engineering Department, Faculty of Engineering, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
| | - Ahmed Khalil
- Civil Engineering Department, Faculty of Engineering, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
| | - Ali M Basha
- Civil Engineering Department, Faculty of Engineering, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
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2
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Dauptain K, Trably E, Santa-Catalina G, Carrere H. Biomass acid pretreatment impacts on metabolic routes and bacterial composition of dark fermentation process. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 181:211-219. [PMID: 38648723 DOI: 10.1016/j.wasman.2024.03.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 03/11/2024] [Accepted: 03/28/2024] [Indexed: 04/25/2024]
Abstract
Complex organic matter represents a suitable substrate to produce hydrogen through dark fermentation (DF) process. To increase H2 yields, pretreatment technology is often required. The main objective of the present work was to investigate thermo-acid pretreatment impact on sugar solubilization and biotic parameters of DF of sorghum or organic fraction of municipal solid waste (OFMSW). Biochemical hydrogen potential tests were carried out without inoculum using raw or thermo-acid pretreated substrates. Results showed an improvement in sugar solubilization after thermo-acid pretreatments. Pretreatments led to similar DF performances (H2 and total metabolite production) compared to raw biomasses. Nevertheless, they were responsible for bacterial shifts from Enterobacteriales towards Clostridiales and Bacillales as well as metabolic changes from acetate towards butyrate or ethanol. The metabolic changes were attributed to the biomass pretreatment impact on indigenous bacteria as no change in the metabolic profile was observed after performing thermo-acid pretreatments on irradiated OFMSW (inactivated indigenous bacteria and inoculum addition). Consequently, acid pretreatments were inefficient to improve DF performances but led to metabolic and bacterial community changes due to their impact on indigenous bacteria.
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Affiliation(s)
- K Dauptain
- INRAE, Université de Montpellier, LBE, 102 avenue des Étangs, 11100 Narbonne, France
| | - E Trably
- INRAE, Université de Montpellier, LBE, 102 avenue des Étangs, 11100 Narbonne, France
| | - G Santa-Catalina
- INRAE, Université de Montpellier, LBE, 102 avenue des Étangs, 11100 Narbonne, France
| | - H Carrere
- INRAE, Université de Montpellier, LBE, 102 avenue des Étangs, 11100 Narbonne, France.
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3
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Atasoy M, Álvarez Ordóñez A, Cenian A, Djukić-Vuković A, Lund PA, Ozogul F, Trček J, Ziv C, De Biase D. Exploitation of microbial activities at low pH to enhance planetary health. FEMS Microbiol Rev 2024; 48:fuad062. [PMID: 37985709 PMCID: PMC10963064 DOI: 10.1093/femsre/fuad062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/31/2023] [Accepted: 11/17/2023] [Indexed: 11/22/2023] Open
Abstract
Awareness is growing that human health cannot be considered in isolation but is inextricably woven with the health of the environment in which we live. It is, however, under-recognized that the sustainability of human activities strongly relies on preserving the equilibrium of the microbial communities living in/on/around us. Microbial metabolic activities are instrumental for production, functionalization, processing, and preservation of food. For circular economy, microbial metabolism would be exploited to produce building blocks for the chemical industry, to achieve effective crop protection, agri-food waste revalorization, or biofuel production, as well as in bioremediation and bioaugmentation of contaminated areas. Low pH is undoubtedly a key physical-chemical parameter that needs to be considered for exploiting the powerful microbial metabolic arsenal. Deviation from optimal pH conditions has profound effects on shaping the microbial communities responsible for carrying out essential processes. Furthermore, novel strategies to combat contaminations and infections by pathogens rely on microbial-derived acidic molecules that suppress/inhibit their growth. Herein, we present the state-of-the-art of the knowledge on the impact of acidic pH in many applied areas and how this knowledge can guide us to use the immense arsenal of microbial metabolic activities for their more impactful exploitation in a Planetary Health perspective.
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Affiliation(s)
- Merve Atasoy
- UNLOCK, Wageningen University & Research and Technical University Delft, Droevendaalsesteeg 4, 6708 PB,Wageningen, the Netherlands
| | - Avelino Álvarez Ordóñez
- Department of Food Hygiene and Technology and Institute of Food Science and Technology, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain
| | - Adam Cenian
- Institute of Fluid Flow Machinery, Polish Academy of Sciences, Department of Physical Aspects of Ecoenergy, 14 Fiszera St., 80-231 Gdańsk, Poland
| | - Aleksandra Djukić-Vuković
- Department of Biochemical Engineering and Biotechnology, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Peter A Lund
- Institute of Microbiology and Infection,School of Biosciences, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Fatih Ozogul
- Department of Seafood Processing and Technology, Faculty of Fisheries, Cukurova University, Balcali, 01330, Adana, Turkey
- Biotechnology Research and Application Center, Cukurova University, Balcali, 01330 Adana, Turkey
| | - Janja Trček
- Department of Biology, Faculty of Natural Sciences and Mathematics, University of Maribor, Koroška cesta 160, 2000 Maribor, Slovenia
| | - Carmit Ziv
- Department of Postharvest Science, Agricultural Research Organization – Volcani Center, 68 HaMaccabim Road , P.O.B 15159 Rishon LeZion 7505101, Israel
| | - Daniela De Biase
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, 04100 Latina, Italy
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4
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Zhao B, Dong Z, Sha H, Cao S, Duan J, Yuan A, Song Z. Thermally modified tourmaline enhances hydrogen production by influencing hydrolysis acidification in two stages during dark fermentation of corn stover. BIORESOURCE TECHNOLOGY 2023; 386:129568. [PMID: 37506940 DOI: 10.1016/j.biortech.2023.129568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/17/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023]
Abstract
This study investigated the influence of thermally modified tourmaline (Tur) on hydrogen production during the dark fermentation of corn stover. Single-factor experimental results revealed influencing factors of particle size, mass, and temperature. Optimization of the experimental process was achieved using the Box-Behnken design, reaching optimum at conditions of 407 °C, 910-mesh, and 6.2 g. The principle analysis experiment showed that the Tur-enhanced group (Tur_En) amplified cumulative hydrogen production by elevating hydrogen production during the sugar-production stage. The Tur_En group's cumulative hydrogen production was measured at 396.2 ± 40.3 (mL/g VS), marking a 34.2% increase compared to the control group. Analysis of microbial diversity indicated that Firmicutes and Bacteroidota emerged as dominant colonies in both stages. Tur facilitated hydrogen production by stimulating the activity of Firmicutes. This study suggests a highly effective Tur-enhanced technology for hydrogen production from corn stover and elucidates the principles underpinning this method from two stages.
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Affiliation(s)
- Bo Zhao
- School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China.
| | - Zheng Dong
- School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Hao Sha
- School of Energy and Power Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Shengxian Cao
- School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Jie Duan
- School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Ankai Yuan
- School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Zijian Song
- School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China
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5
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Roslan E, Magdalena JA, Mohamed H, Akhiar A, Shamsuddin AH, Carrere H, Trably E. Lactic acid fermentation of food waste as storage method prior to biohydrogen production: Effect of storage temperature on biohydrogen potential and microbial communities. BIORESOURCE TECHNOLOGY 2023; 378:128985. [PMID: 37001698 DOI: 10.1016/j.biortech.2023.128985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/26/2023] [Accepted: 03/27/2023] [Indexed: 06/19/2023]
Abstract
This study aims to investigate the impact of utilizing lactic acid fermentation (LAF) as storage method of food waste (FW) prior to dark fermentation (DF). LAF of FW was carried out in batches at six temperatures (4 °C, 10 °C, 23 °C, 35 °C, 45 °C, and 55 °C) for 15 days followed by biological hydrogen potential (BHP) tests. Different storage temperatures resulted in different metabolites distribution, with either lactate or ethanol being dominant (159.2 ± 20.6 mM and 234.4 ± 38.2 mM respectively), but no negative impact on BHP (averaging at 94.6 ± 25.1 mL/gVS). Maximum hydrogen production rate for stored FW improved by at least 57%. Microbial analysis showed dominance of lactic acid bacteria (LAB) namely Lactobacillus sp., Lactococcus sp., Weisella sp., Streptococcus sp. and Bacillus sp. after LAF. Clostridium sp. emerged after DF, co-existing with LAB. Coupling LAF as a storage method was demonstrated as a novel strategy of FW management for DF, for a wide range of temperatures.
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Affiliation(s)
- Eqwan Roslan
- INRAE, Université de Montpellier, LBE, 102 avenue des Étangs, 11100 Narbonne, France; Department of Mechanical Engineering, College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia.
| | - Jose Antonio Magdalena
- INRAE, Université de Montpellier, LBE, 102 avenue des Étangs, 11100 Narbonne, France; Vicerrectorado de Investigación y Transferencia de la Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Hassan Mohamed
- Institute of Sustainable Energy, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia; Department of Mechanical Engineering, College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia
| | - Afifi Akhiar
- Institute of Sustainable Energy, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia; Centre of Excellence for Water Research and Environmental Sustainability Growth (WAREG), Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia
| | - Abd Halim Shamsuddin
- Institute of Sustainable Energy, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia
| | - Hélène Carrere
- INRAE, Université de Montpellier, LBE, 102 avenue des Étangs, 11100 Narbonne, France
| | - Eric Trably
- INRAE, Université de Montpellier, LBE, 102 avenue des Étangs, 11100 Narbonne, France
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6
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Luo L, Sriram S, Johnravindar D, Louis Philippe Martin T, Wong JWC, Pradhan N. Effect of inoculum pretreatment on the microbial and metabolic dynamics of food waste dark fermentation. BIORESOURCE TECHNOLOGY 2022; 358:127404. [PMID: 35654323 DOI: 10.1016/j.biortech.2022.127404] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/26/2022] [Accepted: 05/28/2022] [Indexed: 06/15/2023]
Abstract
This study systematically evaluated and compared different inoculum pretreatment methods to quickly select dark fermentative bacteria from anaerobic sludge for the bioconversion of food waste. The hydrogen (H2) production rate was found to be highest for 'heat + CO2' treated inoculum at 140.75 ± 2.61 mL/L/h compared to control experiments (60.27 ± 2.61 mL/L/h). At the same time, H2 yield was found to be highest for alkali-treated inoculum at 157.25 ± 7.62 mL/g of volatile solids (VS) added compared to control experiments (91.61 ± 1.93 mL/g VS). Analysis of organic acids suggests a Clostridial-type fermentation with acetate (0.52 to 1.60 g/L) and butyrate (1.69 to 2.42 g/L) being the major by-products. The microbial data analysis showed that Firmicutes (63.64-90.39%), Bacteroidota (1.16-21.88%), and Proteobacteria (2.09-9.93%) were dominant at the phylum level, whereas genus-level classification showed Clostridium sensu stricto 1 (6.37-42.63%), Streptococcus (1.87-28.96%), Prevotella (0.57-16.59%), and Enterococcus (0.56-14.51%) dominated under different experimental conditions.
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Affiliation(s)
- Lijun Luo
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Saranya Sriram
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Davidraj Johnravindar
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Thomas Louis Philippe Martin
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Jonathan W C Wong
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; Institute of Bioresource and Agriculture, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Nirakar Pradhan
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; Institute of Bioresource and Agriculture, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
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7
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Microbial Biogas Production from Pork Gelatine. HYDROGEN 2022. [DOI: 10.3390/hydrogen3020012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This research describes the results of the anaerobic digestion of gelatine as a potential hydrogen source with heat-shocked inoculum. The concentrations of applied gelatine were of VSS (volatile suspended solids) ranging from 10 g VSS/L to 30 g VSS/L. The initial process pH was 5.5, and, depending on the concentration, reached pH values from 7.5 to 7.8 after 55 days. Although the inoculum was heat-shocked in 30 g VSS/L of collagen, the process that occurred was hydrogenotrophic anaerobic digestion. In gelatine concentrations below 30 g VSS/L, hydrogen production was dominant only during the first 5 days of the experiments. Then, there was a change from dark fermentation to hydrogenotrophic methane production. The optimal hydrogen and methane yields resulted from the concentrations of 10 g VSS/L (7.65 mL ± 0.01 mL H2/g VSS and 3.49 ± 0.01 L CH4/g VSS). Additionally, 10 g VSS/L had the lowest accumulated emission of hydrogen sulphide (10.3 ± 0.01 mL of H2S), while 30 g VSS/L (0.440 ± 0.01mL H2S/g VSS) produced the lowest yield. After a lag time, the hydrogen production and hydrogen sulphide grew with a specific ratio, depending on the concentration. The hydrogen sulphide emission and sulphur added analysis proved that hydrogen sulphide originating from biogas created by bacteria remains longer than that from a substrate.
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Van Vlierberghe C, Escudié R, Bernet N, Santa-Catalina G, Frederic S, Carrere H. Conditions for efficient alkaline storage of cover crops for biomethane production. BIORESOURCE TECHNOLOGY 2022; 348:126722. [PMID: 35041924 DOI: 10.1016/j.biortech.2022.126722] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
An innovative process aiming to combine storage and alkali pretreatment of cover crops was investigated using lime as a low cost and environmental friendly reactant. Different lime loadings and Total Solid concentrations (TS) allowed to highlight the abiotic mechanisms of deacetylation during the early stages of the process. Long-term storage experiments of rye and sunflower cover crops at 100 g.kgTS-1 lime loading allowed to evaluate the fermentation kinetics and to compare performances in dry and wet conditions to classical silage storage. The dry condition allowed an efficient alkaline storage and up to a 15.7% Biochemical Methane Potential (BMP) increase, while the wet condition underwent a succession of fermentations with a high butyric acid accumulation and H2 production, leading to a 13% BMP loss. Silage experiments allowed an efficient preservation of the BMP, with no significant variation over the 6-month storage duration.
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Affiliation(s)
- C Van Vlierberghe
- INRAE, Univ. Montpellier, LBE, 102 Avenue des étangs, F-11100 Narbonne, France; GRDF, 6 rue Condorcet, F-75009 Paris, France
| | - R Escudié
- INRAE, Univ. Montpellier, LBE, 102 Avenue des étangs, F-11100 Narbonne, France
| | - N Bernet
- INRAE, Univ. Montpellier, LBE, 102 Avenue des étangs, F-11100 Narbonne, France
| | - G Santa-Catalina
- INRAE, Univ. Montpellier, LBE, 102 Avenue des étangs, F-11100 Narbonne, France
| | - S Frederic
- GRDF, 6 rue Condorcet, F-75009 Paris, France
| | - H Carrere
- INRAE, Univ. Montpellier, LBE, 102 Avenue des étangs, F-11100 Narbonne, France.
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9
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Kumar Sharma A, Kumar Ghodke P, Manna S, Chen WH. Emerging technologies for sustainable production of biohydrogen production from microalgae: A state-of-the-art review of upstream and downstream processes. BIORESOURCE TECHNOLOGY 2021; 342:126057. [PMID: 34597808 DOI: 10.1016/j.biortech.2021.126057] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 06/13/2023]
Abstract
Biohydrogen (BioH2) is considered as one of the most environmentally friendly fuels and a strong candidate to meet the future demand for a sustainable source of energy. Presently, the production of BioH2 from photosynthetic organisms has raised a lot of hopes in the fuel industry. Moreover, microalgal-based BioH2 synthesis not only helps to combat current global warming by capturing greenhouse gases but also plays a key role in wastewater treatment. Hence, this manuscript provides a state-of-the-art review of the upstream and downstream BioH2 production processes. Different metabolic routes such as direct and indirect photolysis, dark fermentation, photofermentation, and microbial electrolysis are covered in detail. Upstream processes (e.g. growth techniques, growth media) also have a great impact on BioH2 productivity and economics, which is also explored. Technical and scientific obstacles of microalgae BioH2 systems are finally addressed, allowing the technology to become more innovative and commercial.
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Affiliation(s)
- Amit Kumar Sharma
- Department of Chemistry, Centre for Alternate and Renewable Energy Research, R&D, University of Petroleum & Energy Studies (UPES), School of Engineering, Energy Acres Building, Bidholi, Dehradun 248007, Uttarakhand, India
| | - Praveen Kumar Ghodke
- Department of Chemical Engineering, National Institute of Technology Calicut, Kozhikode 673601, Kerala, India
| | - Suvendu Manna
- Department of Health Safety, Environment and Civil Engineering, University of Petroleum and Energy Studies, Dehradun, Uttarakhand 248007, India
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan.
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10
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Policastro G, Giugliano M, Luongo V, Napolitano R, Fabbricino M. Carbon catabolite repression occurrence in photo fermentation of ethanol-rich substrates. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 297:113371. [PMID: 34325364 DOI: 10.1016/j.jenvman.2021.113371] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/19/2021] [Accepted: 07/22/2021] [Indexed: 06/13/2023]
Abstract
The paper investigates the phenomenon of Carbon Catabolite Repression occurring during photo fermentation of ethanol-rich effluents, which usually contain ethanol as main carbon source, and glycerol as secondary one. The study was conducted using mixed phototrophic cultures, adopting, as substrate, the effluent produced by the alcoholic fermentation of sugar cane bagasse. In order to elucidate the phenomenon, experimental tests were carried out using two different ethanol to glycerol ratios. Results were compared with those resulting from pure ethanol and glycerol conversion. According to the obtained data, as a result of Carbon Catabolite Repression occurrence, the presence of glycerol negatively affects hydrogen production. Indeed, part of the ethanol source is converted to biomass and polyhydroxybutyrate rather than to hydrogen. In more details, the presence of glycerol determines a drop of the hydrogen production, which goes from 12 % to 32 %, according to the ethanol/glycerol ratio, compared to the production obtained from fermentation of ethanol alone. Therefore, to promote the hydrogen production, it is advisable to apply strategies to produce low glycerol concentrations in the ethanol production stage.
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Affiliation(s)
- Grazia Policastro
- Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Via Claudio 21, 80125, Naples, Italy.
| | - Marco Giugliano
- Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Via Claudio 21, 80125, Naples, Italy.
| | - Vincenzo Luongo
- Department of Mathematics and Applications Renato Caccioppoli, University of Naples Federico II, Via Cintia, Monte S. Angelo, 80126, Naples, Italy.
| | - Raffaele Napolitano
- Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Via Claudio 21, 80125, Naples, Italy.
| | - Massimiliano Fabbricino
- Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Via Claudio 21, 80125, Naples, Italy.
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11
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Pradhan N, d'Ippolito G, Dipasquale L, Esposito G, Panico A, Lens PNL, Fontana A. Kinetic modeling of hydrogen and L-lactic acid production by Thermotoga neapolitana via capnophilic lactic fermentation of starch. BIORESOURCE TECHNOLOGY 2021; 332:125127. [PMID: 33873006 DOI: 10.1016/j.biortech.2021.125127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
This study investigated the feasibility of hydrogen (H2) and L-lactic acid production from starch under capnophilic lactic fermentation (CLF) conditions by using Thermotoga neapolitana. Batch experiments were performed in 120 mL serum bottles and a 3 L pH-controlled continuous stirred-tank reactors (CSTR) system with potato and wheat starch as the substrates. A H2 yield of 3.34 (±0.17) and 2.79 (±0.17) mol H2/mol of glucose eq. was achieved with, respectively, potato and wheat starch. In the presence of CO2, L-lactic acid production by the acetyl-CoA carboxylation was significantly higher for the potato starch (0.88 ± 0.39 mol lactic acid/mol glucose eq.) than wheat starch (0.33 ± 0.11 mol lactic acid/mol glucose eq.). A kinetic model was applied to simulate and predict the T. neapolitana metabolic profile and bioreactor performance under CLF conditions. The CLF-based starch fermentation suggests a new direction to biotransform agri-food waste into biofuels and valuable biochemicals.
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Affiliation(s)
- Nirakar Pradhan
- Institute of Biomolecular Chemistry, National Research Council, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy; Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Giuliana d'Ippolito
- Institute of Biomolecular Chemistry, National Research Council, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy.
| | - Laura Dipasquale
- Institute of Biomolecular Chemistry, National Research Council, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Giovanni Esposito
- Department of Civil, Architectural and Environmental Engineering, University of Napoli "Federico II", Via Claudio 21, 80125 Napoli, Italy.
| | - Antonio Panico
- Department of Engineering, University of Campania "Luigi Vanvitelli", via Roma 29, 81031 Aversa, Italy.
| | - Piet N L Lens
- UNESCO-IHE Institute for Water Education, Westvest 7, 2611-AX Delft, the Netherlands.
| | - Angelo Fontana
- Institute of Biomolecular Chemistry, National Research Council, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy; Department of Biology, University of Napoli "Federico II", Via Cupa Nuova Cinthia 21, 80126 Napoli, Italy.
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12
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Abstract
Due to its characteristics, hydrogen is considered the energy carrier of the future. Its use as a fuel generates reduced pollution, as if burned it almost exclusively produces water vapor. Hydrogen can be produced from numerous sources, both of fossil and renewable origin, and with as many production processes, which can use renewable or non-renewable energy sources. To achieve carbon neutrality, the sources must necessarily be renewable, and the production processes themselves must use renewable energy sources. In this review article the main characteristics of the most used hydrogen production methods are summarized, mainly focusing on renewable feedstocks, furthermore a series of relevant articles published in the last year, are reviewed. The production methods are grouped according to the type of energy they use; and at the end of each section the strengths and limitations of the processes are highlighted. The conclusions compare the main characteristics of the production processes studied and contextualize their possible use.
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13
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Morsy FM, Elbadry M, Elbahloul Y. Semidry acid hydrolysis of cellulose sustained by autoclaving for production of reducing sugars for bacterial biohydrogen generation from various cellulose feedstock. PeerJ 2021; 9:e11244. [PMID: 33976974 PMCID: PMC8061573 DOI: 10.7717/peerj.11244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 03/18/2021] [Indexed: 11/20/2022] Open
Abstract
Cellulosic biowastes are one of the cheapest and most abundant renewable organic materials on earth that can be, subsequent to hydrolysis, utilized as an organic carbon source for several fermentation biotechnologies. This study was devoted to explore a semidry acid hydrolysis of cellulose for decreasing the cost and ionic strength of the hydrolysate. For semidry acid hydrolysis, cellulose was just wetted with HCl (0 to 7 M) and subjected to autoclaving. The optimum molar concentration of HCl and period of autoclaving for semidry acid hydrolysis of cellulose were 6 M and 50 min respectively. Subsequent to the semidry acid hydrolysis with a minimum volume of 6 M HCl sustained by autoclaving, the hydrolysate was diluted with distilled water and neutralized with NaOH (0.5 M). The reducing sugars produced from the semidry acid hydrolysis of cellulose was further used for dark fermentation biohydrogen production by Escherichia coli as a representative of most hydrogen producing eubacteria which cannot utilize non-hydrolyzed cellulose. An isolated E. coli TFYM was used where this bacterium was morphologically and biochemically characterized and further identified by phylogenetic 16S rRNA encoding gene sequence analysis. The reducing sugars produced by semidry acid hydrolysis could be efficiently utilized by E. coli producing 0.4 mol H2 mol-1 hexose with a maximum rate of hydrogen gas production of 23.3 ml H2 h-1 L-1 and an estimated hydrogen yield of 20.5 (L H2 kg-1 dry biomass). The cheap cellulosic biowastes of wheat bran, sawdust and sugarcane bagasse could be hydrolyzed by semidry acid hydrolysis where the estimated hydrogen yield per kg of its dry biomass were 36, 18 and 32 (L H2 kg-1 dry biomass) respectively indicating a good feasibility of hydrogen production from reducing sugars prepared by semidry acid hydrolysis of these cellulosic biowastes. Semidry acid hydrolysis could also be effectively used for hydrolyzing non-cellulosic polysaccharides of dry cyanobacterial biomass. The described semidry acid hydrolysis of cellulosic biowastes in this study might be applicable not only for bacterial biohydrogen production but also for various hydrolyzed cellulose-based fermentation biotechnologies.
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Affiliation(s)
- Fatthy Mohamed Morsy
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawarah, Almadinah Almunawarah, Saudi Arabia.,Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, Assiut, Egypt
| | - Medhat Elbadry
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawarah, Almadinah Almunawarah, Saudi Arabia.,Agricultural Microbiology Department, Faculty of Agriculture, Fayoum University, Fayoum, Fayoum, Egypt
| | - Yasser Elbahloul
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawarah, Almadinah Almunawarah, Saudi Arabia.,Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria, Alexandria, Egypt
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14
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Bhatia SK, Jagtap SS, Bedekar AA, Bhatia RK, Rajendran K, Pugazhendhi A, Rao CV, Atabani AE, Kumar G, Yang YH. Renewable biohydrogen production from lignocellulosic biomass using fermentation and integration of systems with other energy generation technologies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 765:144429. [PMID: 33385808 DOI: 10.1016/j.scitotenv.2020.144429] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/05/2020] [Accepted: 12/05/2020] [Indexed: 06/12/2023]
Abstract
Biohydrogen is a clean and renewable source of energy. It can be produced by using technologies such as thermochemical, electrolysis, photoelectrochemical and biological, etc. Among these technologies, the biological method (dark fermentation) is considered more sustainable and ecofriendly. Dark fermentation involves anaerobic microbes which degrade carbohydrate rich substrate and produce hydrogen. Lignocellulosic biomass is an abundantly available raw material and can be utilized as an economic and renewable substrate for biohydrogen production. Although there are many hurdles, continuous advancements in lignocellulosic biomass pretreatment technology, microbial fermentation (mixed substrate and co-culture fermentation), the involvement of molecular biology techniques, and understanding of various factors (pH, T, addition of nanomaterials) effect on biohydrogen productivity and yield render this technology efficient and capable to meet future energy demands. Further integration of biohydrogen production technology with other products such as bio-alcohol, volatile fatty acids (VFAs), and methane have the potential to improve the efficiency and economics of the overall process. In this article, various methods used for lignocellulosic biomass pretreatment, technologies in trends to produce and improve biohydrogen production, a coproduction of other energy resources, and techno-economic analysis of biohydrogen production from lignocellulosic biomass are reviewed.
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Affiliation(s)
- Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea.
| | - Sujit Sadashiv Jagtap
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, IL 61801, USA; DOE Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, IL 61801, USA
| | - Ashwini Ashok Bedekar
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, IL 61801, USA
| | - Ravi Kant Bhatia
- Department of Biotechnology, Himachal Pradesh University, Summer Hill 171005, H.P, India
| | - Karthik Rajendran
- Department of Environmental Science, SRM University-AP, Andhra Pradesh 522502, India
| | - Arivalagan Pugazhendhi
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
| | - Christopher V Rao
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, IL 61801, USA; DOE Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, IL 61801, USA
| | - A E Atabani
- Alternative Fuels Research Laboratory (AFRL), Energy Division, Department of Mechanical Engineering, Faculty of Engineering, Erciyes University, 38039 Kayseri, Turkey
| | - Gopalakrishnan Kumar
- Institute of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Box 8600 Forus, 4036 Stavanger, Norway
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea.
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15
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García-Depraect O, Castro-Muñoz R, Muñoz R, Rene ER, León-Becerril E, Valdez-Vazquez I, Kumar G, Reyes-Alvarado LC, Martínez-Mendoza LJ, Carrillo-Reyes J, Buitrón G. A review on the factors influencing biohydrogen production from lactate: The key to unlocking enhanced dark fermentative processes. BIORESOURCE TECHNOLOGY 2021; 324:124595. [PMID: 33453519 DOI: 10.1016/j.biortech.2020.124595] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/16/2020] [Accepted: 12/18/2020] [Indexed: 05/15/2023]
Abstract
Dark fermentation (DF) is one of the most promising biological methods to produce bio-hydrogen and other value added bio-products from carbohydrate-rich wastes and wastewater. However, process instability and low hydrogen production yields and rates have been highlighted as the major bottlenecks preventing further development. Numerous studies have associated such concerns with the inhibitory activity of lactate-producing bacteria (LAB) against hydrogen producers. However, an increasing number of studies have also shown lactate-based metabolic pathways as the prevailing platform for hydrogen production. This opens a vast potential to develop new strategies to deal with the "Achilles heel" of DF - LAB overgrowth - while untapping high-performance DF. This review discusses the key factors influencing the lactate-driven hydrogen production, paying particular attention to substrate composition, the operating conditions, as well as the microbiota involved in the process and its potential functionality and related biochemical routes. The current limitations and future perspectives in the field are also presented.
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Affiliation(s)
- Octavio García-Depraect
- Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011 Valladolid, Spain.
| | - Roberto Castro-Muñoz
- Tecnologico de Monterrey, Campus Toluca, Avenida Eduardo Monroy Cárdenas 2000 San Antonio Buenavista, 50110 Toluca de Lerdo, Mexico; Gdansk University of Technology, Faculty of Chemistry, Department of Process Engineering and Chemical Technology, 11/12 Narutowicza St., 80-233 Gdansk, Poland
| | - Raúl Muñoz
- Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011 Valladolid, Spain
| | - Eldon R Rene
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, P. O. Box 3015, 2601 DA Delft, the Netherlands
| | - Elizabeth León-Becerril
- Department of Environmental Technology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Colinas de la Normal, 44270 Guadalajara, Jalisco, Mexico
| | - Idania Valdez-Vazquez
- Unidad Académica Juriquilla, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, 76230 Querétaro, Mexico
| | - Gopalakrishnan Kumar
- Institute of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Box 8600 Forus, Stavanger 4036, Norway
| | - Luis C Reyes-Alvarado
- Unidad de Energía Renovable, Centro de Investigación Científica de Yucatán, A.C., Parque Científico de Yucatán, A.C., Carretera Sierra Papacal - Chuburná Puerto, km 5., 97302 Mérida, Yucatán, Mexico
| | - Leonardo J Martínez-Mendoza
- Department of Environmental Technology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Colinas de la Normal, 44270 Guadalajara, Jalisco, Mexico
| | - Julián Carrillo-Reyes
- Unidad Académica Juriquilla, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, 76230 Querétaro, Mexico
| | - Germán Buitrón
- Unidad Académica Juriquilla, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, 76230 Querétaro, Mexico
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16
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Ahmad A, Banat F, Taher H. Comparative study of lactic acid production from date pulp waste by batch and cyclic-mode dark fermentation. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 120:585-593. [PMID: 33176940 DOI: 10.1016/j.wasman.2020.10.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/20/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
Biowaste valorization into lactic acid (LA) by treatment with indigenous microbiota has recently gained considerable attention. LA production from date pulp waste provides an opportunity for resource recovery, reduces environmental issues, and possibly turns biomass into wealth. This study aimed to compare the performance of batch and cyclic fermentation processes in LA production with and without enzymatic pretreatment. The fermentation studies were conducted in the absence of an external inoculum source (relying on indigenous microbiota) and without the addition of nutrients. The highest LA volumetric productivity (3.56 g/liter/day), yield (0.07 g/g-TS), and concentration (21.66 g/L) were attained with enzymatic pretreated date pulp in the cyclic-mode fermentation at the optimized conditions. The productivity rate of LA was enhanced in the cyclic-mode as compared to the batch process. Enzymatic pretreatment increased the digestibility of cellulose that led to higher LA yield. An Artificial Neural Network model was developed to optimize the process parameters and to predict the LA concentration from date pulp waste in both fermentation processes. The main advantage of the ANN approach is the ability to perform quick predictions without resource-consuming experiments. The model predicted optimal conditions well and demonstrated good agreement between experimental and predicted data.
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Affiliation(s)
- Ashfaq Ahmad
- Department of Chemical Engineering, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Hanifa Taher
- Department of Chemical Engineering, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
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17
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François E, Dumas C, Gougeon RD, Alexandre H, Vuilleumier S, Ernst B. Unexpected high production of biohydrogen from the endogenous fermentation of grape must deposits. BIORESOURCE TECHNOLOGY 2021; 320:124334. [PMID: 33166887 DOI: 10.1016/j.biortech.2020.124334] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/22/2020] [Accepted: 10/24/2020] [Indexed: 06/11/2023]
Abstract
The aim of this work was to assess the performances of wine byproduct biomass for hydrogen production by dark fermentation. Grape must deposits from two grape varieties (Pinot Gris and Chardonnay) were considered, either with external microbial inoculum or without. We show that grape must residues contain endogenous microflora, well adapted to their environment, which can degrade sugars (initially contained in the biomass) to hydrogen without any nutrient addition. Indeed, hydrogen production during endogenous fermentation is as efficient as with an external heat-treated inoculum (2.5 ± 0.4 LH2.L-1reactor and 1.61 ± 0.41 molH2.mol-1consumed hexose, respectively) with a lower energy cost. Hydrogen-producing bacteria were selected from the endogenous microflora during semi-batch bioreactor operation, as shown by T-RFLP profiles and 16S rRNA sequencing, with Clostridium spp. (butyricum, beijerinckii, diolis, roseum) identified as the major phylotype. Such hydrogen production efficiency opens new perspectives for innovating in the valorization of winery by-products.
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Affiliation(s)
- Emilie François
- Université de Strasbourg, CNRS, IPHC UMR 7178, Laboratoire de Reconnaissance et Procédés de Séparation Moléculaire (RePSeM), ECPM 25 rue Becquerel F-67000 Strasbourg, France
| | - Christine Dumas
- Université de Strasbourg, CNRS, IPHC UMR 7178, Laboratoire de Reconnaissance et Procédés de Séparation Moléculaire (RePSeM), ECPM 25 rue Becquerel F-67000 Strasbourg, France
| | - Régis D Gougeon
- UMR PAM, Université de Bourgogne/Agrosup Dijon, Institut Universitaire de la Vigne et du Vin - Jules Guyot, 21000 Dijon, France
| | - Hervé Alexandre
- UMR PAM, Université de Bourgogne/Agrosup Dijon, Institut Universitaire de la Vigne et du Vin - Jules Guyot, 21000 Dijon, France
| | - Stéphane Vuilleumier
- Université de Strasbourg, CNRS, GMGM UMR 7156, 28 rue Goethe, 67000 Strasbourg, France
| | - Barbara Ernst
- Université de Strasbourg, CNRS, IPHC UMR 7178, Laboratoire de Reconnaissance et Procédés de Séparation Moléculaire (RePSeM), ECPM 25 rue Becquerel F-67000 Strasbourg, France.
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18
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Dauptain K, Schneider A, Noguer M, Fontanille P, Escudie R, Carrere H, Trably E. Impact of microbial inoculum storage on dark fermentative H 2 production. BIORESOURCE TECHNOLOGY 2021; 319:124234. [PMID: 33254457 DOI: 10.1016/j.biortech.2020.124234] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/01/2020] [Accepted: 10/03/2020] [Indexed: 06/12/2023]
Abstract
Complex organic substrates represent an important and relevant feedstock for producing hydrogen by Dark Fermentation (DF). Usually, an external microbial inoculum originated from various natural environments is added to seed the DF reactors. However, H2 yields are significantly impacted by the inoculum origin and the storage conditions as microbial community composition can fluctuate. This study aims to determine how the type and time of inoculum storage can impact the DF performances. Biochemical Hydrogen Potential tests were carried out using three substrates (glucose, the organic fraction of municipal solid waste, and food waste), inocula of three different origins, different storage conditions (freezing or freeze-drying) and duration. As a result, H2 production from glucose with the differently stored inocula was significantly impacted (positively or negatively) and was inoculum-origin-dependent. For complex substrates, hydrogen yields with the stored inocula were not statistically different from the fresh inocula, offering the possibility to store an inoculum.
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Affiliation(s)
- K Dauptain
- LBE, Université de Montpellier, INRAE, 102 avenue des Étangs, 11100 Narbonne, France
| | - A Schneider
- LBE, Université de Montpellier, INRAE, 102 avenue des Étangs, 11100 Narbonne, France
| | - M Noguer
- LBE, Université de Montpellier, INRAE, 102 avenue des Étangs, 11100 Narbonne, France
| | - P Fontanille
- Université de Clermont Auvergne, Institut Pascal, TSA 60026, 63178 Aubière, France
| | - R Escudie
- LBE, Université de Montpellier, INRAE, 102 avenue des Étangs, 11100 Narbonne, France
| | - H Carrere
- LBE, Université de Montpellier, INRAE, 102 avenue des Étangs, 11100 Narbonne, France
| | - E Trably
- LBE, Université de Montpellier, INRAE, 102 avenue des Étangs, 11100 Narbonne, France.
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19
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Renaudie M, Dumas C, Vuilleumier S, Ernst B. Biohydrogen production in a continuous liquid/gas hollow fiber membrane bioreactor: Efficient retention of hydrogen producing bacteria via granule and biofilm formation. BIORESOURCE TECHNOLOGY 2021; 319:124203. [PMID: 33045545 DOI: 10.1016/j.biortech.2020.124203] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
The aim of this work was to develop a continuous liquid/gas membrane bioreactor (L/G MBR), i.e. a fermenting module including hollow fibers membrane for L/G separation, for biohydrogen production by dark fermentation. Originally seeded with sludge from a wastewater treatment plant, the L/G MBR underwent a complete stop for eight months. It was then operated without further reseeding. In the present experiment, performed 551 days after the last reseeding, average hydrogen yield of 1.1 ± 0.2 mol per mol glucose added and hydrogen productivity of 135 ± 22 mL/L/h were reached, with acetate and butyrate as the main metabolite products. DNA sequence analysis revealed that Clostridium beijerinckii, Clostridium pasteurianum and Enterobacter sp. were dominant in liquid outlet, in a biofilm on the surface of the hollow fibers and in microbial granules. The L/G MBR has potential for the concentration and the long-term maintenance of an active hydrogen-producing bacterial community without need for reseeding.
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Affiliation(s)
- Marie Renaudie
- Université de Strasbourg, CNRS, IPHC UMR7178, F-67000 Strasbourg, France; French Environment and Energy Management Agency, Angers, France
| | - Christine Dumas
- Université de Strasbourg, CNRS, IPHC UMR7178, F-67000 Strasbourg, France
| | - Stéphane Vuilleumier
- Génétique Moléculaire, Génomique, Microbiologie (GMGM) UMR 7156 CNRS-Université de Strasbourg, Strasbourg, France
| | - Barbara Ernst
- Université de Strasbourg, CNRS, IPHC UMR7178, F-67000 Strasbourg, France.
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