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Ma Y, Liu S, Cui L, Fei Q, Wang Q. Turning food waste to microbial lipid towards a superb economic and environmental sustainability: An innovative integrated biological route. ENVIRONMENTAL RESEARCH 2024; 255:119125. [PMID: 38740293 DOI: 10.1016/j.envres.2024.119125] [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: 03/14/2024] [Revised: 05/06/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024]
Abstract
With the drastic growth of the economic and population, the global energy requirement is on the rise, and massive human and material resources have been put into the development of alternative and renewable energy sources. Biodiesel has been recognized as a green and sustainable alternative energy, but the raw materials-associated source and cost makes it difficult to achieve large-scale commercial production. Microbial lipids (ML) produced by oleaginous microbes have attracted more and more topics as feedstocks for biodiesel production because of their unique advantages (fast growth cycle, small footprint and so on). However, there are still many problems and challenges ahead towards commercialization of ML-based biodiesel, especially the cost of feedstock for ML production. Food waste (FW) rich in organic matters and nutrients is an excellent and almost zero-cost feedstock for ML production. However, current biological routes of FW-based ML production have some defects, which make it impossible to achieve full industrialization at present. Therefore, this review intends to provide a critical and comprehensive analysis of current biological routes of FW-based ML production with the focus on the challenges and solutions forward. The biological routes towards future FW-based ML production must be able to concurrently achieve economic feasibility and environmental sustainability. On this condition, an innovative integrated biological route for FW-based ML production has thus been put forward, which is also elucidated on its economic and environmental sustainability. Moreover, the prospective advantages, limitations and challenges for future scale-up of FW-based ML production have also been outlined, together with the perspectives and directions forward.
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Affiliation(s)
- Yingqun Ma
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China; Xi'an Key Laboratory of C1 Compound Bioconversion Technology, Xi'an Jiaotong University, Xi'an, 710049, China; Shaanxi Key Laboratory of Energy Chemical Process Intensification, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Shiman Liu
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Lihui Cui
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Qiang Fei
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China; Xi'an Key Laboratory of C1 Compound Bioconversion Technology, Xi'an Jiaotong University, Xi'an, 710049, China; Shaanxi Key Laboratory of Energy Chemical Process Intensification, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Qunhui Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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2
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Rofeal M, Abdelmalek F, Pietrasik J. Sustainable Polyhydroxyalkanoate Production from Food Waste via Bacillus mycoides ICRI89: Enhanced 3D Printing with Poly (Methyl Methacrylate) Blend. Polymers (Basel) 2023; 15:4173. [PMID: 37896417 PMCID: PMC10610804 DOI: 10.3390/polym15204173] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/08/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
In view of implementing green technologies for bioplastic turning polices, novel durable feedstock for Bacillus mycoides ICRI89 used for efficient polyhydroxybutyrate (PHB) generation is proposed herein. First, two food waste (FW) pretreatment methods were compared, where the ultrasonication approach for 7 min was effective in easing the following enzymatic action. After treatment with a mixture of cellulase/amylases, an impressive 25.3 ± 0.22 g/L of glucose was liberated per 50 g of FW. Furthermore, a notable 2.11 ± 0.06 g/L PHB and 3.56 ± 0.11 g/L cell dry eight (CDW) over 120 h were generated, representing a productivity percentage of 59.3 wt% using 25% FW hydrolysate. The blend of polyhydroxybutyrate/poly (methyl methacrylate) (PHB/PMMA = 1:2) possessed the most satisfactory mechanical properties. For the first time, PHB was chemically crosslinked with PMMA using dicumyl peroxide (DCP), where a concentration of 0.3 wt% had a considerable effect on increasing the mechanical stability of the blend. FTIR analysis confirmed the molecular interaction between PHB and PMMA showing a modest expansion of the C=O stretching vibration at 1725 cm-1. The DCP-PHB/PMMA blend had significant thermal stability and biodegradation profiles comparable to those of the main constituent polymers. More importantly, a 3-Dimetional (3D) filament was successfully extruded with a diameter of 1.75 mm, where no blockages or air bubbles were noticed via SEM. A new PHB/PMMA "key of life" 3D model has been printed with a filling percentage of 60% and a short printing time of 19.2 min. To conclude, high-performance polymeric 3D models have been fabricated to meet the pressing demands for future applications of sustainable polymers.
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Affiliation(s)
- Marian Rofeal
- International Center for Research on Innovative Biobased Materials (ICRI-BioM)—International Research Agenda, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria 21521, Egypt
- Chemical Engineering Department, Polytechnique Montreal, Montreal, QC H3T 1J4, Canada
| | - Fady Abdelmalek
- International Center for Research on Innovative Biobased Materials (ICRI-BioM)—International Research Agenda, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
- Department of Engineering Physics, Polytechnique Montreal, Montreal, QC H3T 1J4, Canada
| | - Joanna Pietrasik
- Faculty of Chemistry, Institute of Polymer and Dye Technology, Lodz University of Technology, Stefanowskiego 16, 90-537 Lodz, Poland;
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3
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Chenebault C, Percheron B. Development of a simple and versatile process for commercial and municipal lignocellulosic waste conversion into fermentable sugars. BIORESOURCE TECHNOLOGY 2023; 386:129497. [PMID: 37473788 DOI: 10.1016/j.biortech.2023.129497] [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: 05/31/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023]
Abstract
Lignocellulosic wastes are valuable feedstock in biorefinery thanks to their high sugars content and low level of fibers intricacy. However, their massification is often a limiting parameter in the development of industrial projects. Hence, this study aims to develop an efficient process enabling the conversion of several waste streams within the same process line. Several pretreatment and enzymatic hydrolysis parameters were firstly evaluated with Old Corrugated Cardboards (OCC) as a model substrate. A chemical free pretreatment followed by an enzymatic hydrolysis (Cellic Ctec 3 enzymatic cocktail at 0.06 g of cocktail per g of Total Sugars (TS)) efficiently depolymerized OCC into monomeric sugars (0.50 g/gTS) consequently fermented into ethanol (0.24 g/gTS). Then, the suitability of this process was validated for sugars production from Pulp and Paper (P&P) sludge (0.48 g/gTS), sieved toilets papers (0.40 g/gTS), the Organic fraction of municipal solid waste (0.37 g/gTS) and Waste Wood B (0.08 g/gTS).
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4
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Naveenkumar R, Iyyappan J, Pravin R, Kadry S, Han J, Sindhu R, Awasthi MK, Rokhum SL, Baskar G. A strategic review on sustainable approaches in municipal solid waste management andenergy recovery: Role of artificial intelligence,economic stability andlife cycle assessment. BIORESOURCE TECHNOLOGY 2023; 379:129044. [PMID: 37044151 DOI: 10.1016/j.biortech.2023.129044] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/06/2023] [Accepted: 04/09/2023] [Indexed: 05/03/2023]
Abstract
The consumption of energy levels has increased in association with economic growth and concurrently increased the energy demand from renewable sources. The need under Sustainable Development Goals (SDG) intends to explore various technological advancements for the utilization of waste to energy. Municipal Solid Waste (MSW) has been reported as constructive feedstock to produce biofuels, biofuel carriers and biochemicals using energy-efficient technologies in risk freeways. The present review contemplates risk assessment and challenges in sorting and transportation of MSW and different aspects of conversion of MSW into energy are critically analysed. The circular bioeconomy of energy production strategies and management of waste are also analysed. The current scenario on MSW and its impacts on the environment are elucidated in conjunction with various policies and amendments equipped for the competent management of MSW in order to fabricate a sustained environment.
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Affiliation(s)
- Rajendiran Naveenkumar
- Biological Systems Engineering, University of Wisconsin-Madison, Madison, WI 53706, United States; Forest Products Laboratory, USDA Forest Service, Madison, WI 53726, United States
| | - Jayaraj Iyyappan
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai 602107, India
| | - Ravichandran Pravin
- Department of Biotechnology, St. Joseph's College of Engineering, Chennai 600119. India
| | - Seifedine Kadry
- Department of Applied Data Science, Noroff University College, Kristiansand, Norway; Artificial Intelligence Research Center (AIRC), Ajman University, Ajman 346, United Arab Emirates; Department of Electrical and Computer Engineering, Lebanese American University, Byblos, Lebanon
| | - Jeehoon Han
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Raveendran Sindhu
- Department of Food Technology, TKM Institute of Technology, Kollam, Kerala, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | | | - Gurunathan Baskar
- Department of Biotechnology, St. Joseph's College of Engineering, Chennai 600119. India; Department of Applied Data Science, Noroff University College, Kristiansand, Norway.
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5
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Food waste valorization applying the biorefinery concept in the Colombian context: Pre-feasibility analysis of the organic kitchen food waste processing. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Ebrahimian F, Denayer JFM, Mohammadi A, Khoshnevisan B, Karimi K. A critical review on pretreatment and detoxification techniques required for biofuel production from the organic fraction of municipal solid waste. BIORESOURCE TECHNOLOGY 2023; 368:128316. [PMID: 36375700 DOI: 10.1016/j.biortech.2022.128316] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
The organic fraction of municipal solid waste (OFMSW) is a widely-available promising feedstock for biofuel production. However, the presence of different inhibitors originating from fruit and food/beverage wastes as well as recalcitrant lignocellulosic fractions hampers its bioconversion. This necessitates a pretreatment to augment the biodigestibility and fermentability of OFMSW. Hence, this review aims to provide the in-vogue inhibitory compound removal and pretreatment techniques that have been employed for efficient OFMSW conversion into biofuels, i.e., hydrogen, biogas, ethanol, and butanol. The techniques are compared concerning their mode of action, chemical and energy consumption, inhibitor formation and removal, economic feasibility, and environmental sustainability. This critique also reviews the existing knowledge gap and future perspectives for efficient OFMSW valorization. The insights provided pave the way toward developing energy-resilient cities while addressing environmental crises related to generating OFMSW.
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Affiliation(s)
- Farinaz Ebrahimian
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Department of Engineering and Chemical Sciences, Karlstad University, 65188 Karlstad, Sweden
| | - Joeri F M Denayer
- Department of Chemical Engineering, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Ali Mohammadi
- Department of Engineering and Chemical Sciences, Karlstad University, 65188 Karlstad, Sweden
| | - Benyamin Khoshnevisan
- Department of Chemical Engineering, Biotechnology, and Environmental Technology, University of Southern Denmark, Denmark
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Department of Chemical Engineering, Vrije Universiteit Brussel, 1050 Brussels, Belgium.
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7
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Increasing Biomethane Production in MSW Anaerobic Digestion Process by Chemical and Thermal Pretreatment and Process Commercialization Evaluation. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8090463] [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]
Abstract
One of the methods of municipal waste disposal and energy production is anaerobic digestion. This study investigates the effect of thermal and chemical pretreatment on the anaerobic digester’s biomethane production. The optimal condition was evaluated using RSM in two modes: maximum and minimum use of H2O2. The optimal state was obtained in the first case under 110.8 °C, 4.63% NaOH, 8% H2O2, and 111.9 °C, 4.47% NaOH, 2% H2O2 in the second case. Experimental results obtained 77%, 76.6% VS (volatile solid) reduction, and 89.1%, 88.7% SCOD (soluble chemical oxygen demand) reduction in the two optimum conditions, respectively. Experiment results were extrapolated to dry industrial digesters using a factor of 0.89% and durations including 30 days and 25 days. Then, the processes of biogas improvement were simulated. After biogas improvement, the economic analysis of the process was conducted with the definition of various scenarios. It was determined that, at current prices, pretreatment is not economically viable and that, with an increase in electricity prices to 0.09 $/kWh and 0.145 $/kWh, the digestion process with a NaOH 4.47% 112 °C pretreatment, chemical scrubbing, and digestion with NaOH 4.47% 112 °C, 2% H2O2 are sequentially economically viable.
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8
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Ebrahimian F, Denayer JFM, Karimi K. Potato peel waste biorefinery for the sustainable production of biofuels, bioplastics, and biosorbents. BIORESOURCE TECHNOLOGY 2022; 360:127609. [PMID: 35840021 DOI: 10.1016/j.biortech.2022.127609] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Potato is the fourth most abundant crop harvested annually worldwide. Potato peel waste (PPW) is the main waste stream of potato-processing industries which is generated in large quantities and is a threat to the environment globally. However, owing to its compositional characteristics, availability, and zero cost, PPW is a renewable resource for the production of high-value bioproducts. Hence, this study provides a state-of-the-art overview of advancements in PPW valorization through biological and thermochemical conversions. PPW has a high potential for biofuel and biochemical generation through detoxification, pretreatment, hydrolysis, and fermentation. Moreover, many other valuable chemicals, including bio-oil, biochar, and biosorbents, can be produced via thermochemical conversions. However, several challenges are associated with the biological and thermochemical processing of PPW. The insights provided in this review pave the way toward a PPW-based biorefinery development, providing sustainable alternatives to fossil-based products and mitigating environmental concerns.
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Affiliation(s)
- Farinaz Ebrahimian
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Joeri F M Denayer
- Department of Chemical Engineering, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Department of Chemical Engineering, Vrije Universiteit Brussel, 1050 Brussels, Belgium.
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9
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Donkor KO, Gottumukkala LD, Lin R, Murphy JD. A perspective on the combination of alkali pre-treatment with bioaugmentation to improve biogas production from lignocellulose biomass. BIORESOURCE TECHNOLOGY 2022; 351:126950. [PMID: 35257881 DOI: 10.1016/j.biortech.2022.126950] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
Anaerobic digestion (AD) is a bioprocess technology that integrates into circular economy systems, which produce renewable energy and biofertilizer whilst reducing greenhouse gas emissions. However, improvements in biogas production efficiency are needed in dealing with lignocellulosic biomass. The state-of-the-art of AD technology is discussed, with emphasis on feedstock digestibility and operational difficulty. Solutions to these challenges including for pre-treatment and bioaugmentation are reviewed. This article proposes an innovative integrated system combining alkali pre-treatment, temperature-phased AD and bioaugmentation techniques. The integrated system as modelled has a targeted potential to achieve a biodegradability index of 90% while increasing methane production by 47% compared to conventional AD. The methane productivity may also be improved by a target reduction in retention time from 30 to 20 days. This, if realized has the potential to lower energy production cost and the levelized cost of abatement to facilitate an increased resource of sustainable commercially viable biomethane.
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Affiliation(s)
- Kwame O Donkor
- MaREI Centre, Environmental Research Institute, University College Cork, Cork, Ireland; Civil, Structural and Environmental Engineering, School of Engineering and Architecture, University College Cork, Cork, Ireland; Celignis Limited, Mill Court, Upper William Street, Limerick V94 N6D2, Ireland
| | | | - Richen Lin
- MaREI Centre, Environmental Research Institute, University College Cork, Cork, Ireland; Civil, Structural and Environmental Engineering, School of Engineering and Architecture, University College Cork, Cork, Ireland; Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 211189, PR China.
| | - Jerry D Murphy
- MaREI Centre, Environmental Research Institute, University College Cork, Cork, Ireland; Civil, Structural and Environmental Engineering, School of Engineering and Architecture, University College Cork, Cork, Ireland
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10
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Soltaninejad A, Jazini M, Karimi K. Sustainable bioconversion of potato peel wastes into ethanol and biogas using organosolv pretreatment. CHEMOSPHERE 2022; 291:133003. [PMID: 34808197 DOI: 10.1016/j.chemosphere.2021.133003] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/01/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
Potato processing industries generate considerable amounts of residues, i.e., potato peel wastes (PPW). Valorization of PPW for bioethanol and biogas production via a biorefining process was investigated in this study. Organosolv pretreatment was performed on the PPW using 50-75% (v/v) ethanol solution at 120-180 °C with/without the presence of 1% (w/w) H2SO4 (as a catalyst). After the pretreatment, the solvent, i.e., ethanol, was recovered by distillation. Catalyzed organosolv pretreatment using 50% (v/v) ethanol at 120 °C followed by enzymatic hydrolysis resulted in a high hydrolysate yield of 539.8 g glucose/kg dry PPW that was successfully fermented to 224.2 g ethanol/kg dry PPW. To recover more energy, the liquid fraction of the pretreatment remained after solvent recovery and the unhydrolyzed solids that remained from the enzymatic hydrolysis were anaerobically digested. From each kg of dry PPW, the anaerobic digestion produced 57.9 L biomethane. Thus, the biorefinery comprising ethanolic organosolv pretreatment, solvent recovery, enzymatic hydrolysis, ethanolic fermentation, and anaerobic digestion of residues was produced 8112 kJ energy per kg of dry PPW.
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Affiliation(s)
- Ali Soltaninejad
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Mohammadhadi Jazini
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Department of Chemical Engineering, Vrije Universiteit Brussel, 1050, Brussels, Belgium.
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11
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Raj T, Chandrasekhar K, Naresh Kumar A, Rajesh Banu J, Yoon JJ, Kant Bhatia S, Yang YH, Varjani S, Kim SH. Recent advances in commercial biorefineries for lignocellulosic ethanol production: Current status, challenges and future perspectives. BIORESOURCE TECHNOLOGY 2022; 344:126292. [PMID: 34748984 DOI: 10.1016/j.biortech.2021.126292] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 05/26/2023]
Abstract
Cellulosic ethanol production has received global attention to use as transportation fuels with gasoline blending virtue of carbon benefits and decarbonization. However, due to changing feedstock composition, natural resistance, and a lack of cost-effective pretreatment and downstream processing, contemporary cellulosic ethanol biorefineries are facing major sustainability issues. As a result, we've outlined the global status of present cellulosic ethanol facilities, as well as main roadblocks and technical challenges for sustainable and commercial cellulosic ethanol production. Additionally, the article highlights the technical and non-technical barriers, various R&D advancements in biomass pretreatment, enzymatic hydrolysis, fermentation strategies that have been deliberated for low-cost sustainable fuel ethanol. Moreover, selection of a low-cost efficient pretreatment method, process simulation, unit integration, state-of-the-art in one pot saccharification and fermentation, system microbiology/ genetic engineering for robust strain development, and comprehensive techno-economic analysis are all major bottlenecks that must be considered for long-term ethanol production in the transportation sector.
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Affiliation(s)
- Tirath Raj
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - K Chandrasekhar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - A Naresh Kumar
- Department of Environmental Science and Technology, University of Maryland, College Park, MD 20742, USA
| | - J Rajesh Banu
- Department of Life Sciences, Central University of Tamil Nadu, Thiruvarur 610 005, India
| | - Jeong-Jun Yoon
- Green and Sustainable Materials R&D Department, Korea Institute of Industrial Technology (KITECH), Cheonan-si, Chungcheongnam-do 31056, Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India
| | - Sang-Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea.
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12
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Saadatinavaz F, Karimi K, Denayer JFM. Hydrothermal pretreatment: An efficient process for improvement of biobutanol, biohydrogen, and biogas production from orange waste via a biorefinery approach. BIORESOURCE TECHNOLOGY 2021; 341:125834. [PMID: 34479139 DOI: 10.1016/j.biortech.2021.125834] [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: 07/18/2021] [Revised: 08/20/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Orange waste (OW), an abundant and severe globally environmental treat, was used for biobutanol and biohydrogen production emploing acetone-butanol-ethanol (ABE) fermentation through a biorefinery process. The solvent yield from untreated OW was insufficient; thus, the substrate was subjected to hydrothermal pretreatment before hydrolysis. The pretreatment at 140 ℃ for 30 min resulted in the solid with the highest yield of hydrolysis and fermentation. Moreover, the anaerobic digestion of hydrolysis residue produced appreciable amounts of biomethane. However, the pretreatment liquor was not fermentable; thus, it was detoxified by overliming for 24 h at 30 ℃ and then fermented. Overall, this sustainable biorefinery, based on pretreatment without any additional chemical agent, hydrolysis of pretreated solids, detoxification of pretreatment liquor, ABE fermentation, and anaerobic digestion of residues, produced 42.3 g biobutanol, 33.1 g acetone, 13.4 g ethanol, 104.5 L biohydrogen, and 28.3 L biomethane per kg of OW that contained 4560 kJ energy.
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Affiliation(s)
- Fateme Saadatinavaz
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Department of Chemical Engineering, Vrije Universiteit Brussel, 1050, Brussels, Belgium.
| | - Joeri F M Denayer
- Department of Chemical Engineering, Vrije Universiteit Brussel, 1050, Brussels, Belgium
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13
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Enhanced Energy Recovery from Food Waste by Co-Production of Bioethanol and Biomethane Process. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7040265] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The primary objective of this research is to study ways to increase the potential of energy production from food waste by co-production of bioethanol and biomethane. In the first step, the food waste was hydrolysed with an enzyme at different concentrations. By increasing the concentration of enzyme, the amount of reducing sugar produced increased, reaching a maximum amount of 0.49 g/g food waste. After 120 h of fermentation with Saccharomyces cerevisiae, nearly all reducing sugars in the hydrolysate were converted to ethanol, yielding 0.43–0.50 g ethanol/g reducing sugar, or 84.3–99.6% of theoretical yield. The solid residue from fermentation was subsequently subjected to anaerobic digestion, allowing the production of biomethane, which reached a maximum yield of 264.53 ± 2.3 mL/g VS. This results in a gross energy output of 9.57 GJ, which is considered a nearly 58% increase in total energy obtained, compared to ethanol production alone. This study shows that food waste is a raw material with high energy production potential that could be further developed into a promising energy source. Not only does this benefit energy production, but it also lowers the cost of food waste disposal, reduces greenhouse gas emissions, and is a sustainable energy production approach.
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14
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Gianico A, Gallipoli A, Gazzola G, Pastore C, Tonanzi B, Braguglia CM. A novel cascade biorefinery approach to transform food waste into valuable chemicals and biogas through thermal pretreatment integration. BIORESOURCE TECHNOLOGY 2021; 338:125517. [PMID: 34273629 DOI: 10.1016/j.biortech.2021.125517] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/02/2021] [Accepted: 07/04/2021] [Indexed: 06/13/2023]
Abstract
A novel biorefinery platform integrating thermal pretreatment and solid-liquid separation unit is here proposed to fully exploit food waste (FW) potential for production of valuable chemicals and energy through semi-continuous anaerobic bioconversion. The liquid fraction deriving from raw or pretreated FW, was fermented into volatile fatty acids (VFAs, from acetic to caproic acid) while the residual fraction was converted into biomethane. Thermal pretreatment effectively extracted a portion of the macromolecular organics, especially starch, to the liquid phase, promoting acidogenic fermentation and chain elongation pathways (0.43 gVFA g-1VSfed and 0.58 gVFA g-1VSfed with raw and pretreated extract, respectively). In parallel, anaerobic digestion of solid residue in 10 L reactors showed process stability and higher conversion rate for the pretreated residue (0.31 against 0.26 Nm3CH4 kg-1VSfed). The mass-transfer balance coupled with the economic assessment, calculated in terms of direct gross added value, indicated promising revenues by integrating the thermal upstream treatment.
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Affiliation(s)
- Andrea Gianico
- National Research Council of Italy, Water Research Institute, CNR-IRSA, Area della Ricerca RM1, Via Salaria km 29.300, Monterotondo, Rome 00015, Italy
| | - Agata Gallipoli
- National Research Council of Italy, Water Research Institute, CNR-IRSA, Area della Ricerca RM1, Via Salaria km 29.300, Monterotondo, Rome 00015, Italy.
| | - Giulio Gazzola
- National Research Council of Italy, Water Research Institute, CNR-IRSA, Area della Ricerca RM1, Via Salaria km 29.300, Monterotondo, Rome 00015, Italy
| | - Carlo Pastore
- National Research Council of Italy, Water Research Institute, CNR-IRSA, Via F. de Blasio 5, Bari 70132, Italy
| | - Barbara Tonanzi
- National Research Council of Italy, Water Research Institute, CNR-IRSA, Area della Ricerca RM1, Via Salaria km 29.300, Monterotondo, Rome 00015, Italy
| | - Camilla M Braguglia
- National Research Council of Italy, Water Research Institute, CNR-IRSA, Area della Ricerca RM1, Via Salaria km 29.300, Monterotondo, Rome 00015, Italy
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15
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Liu J, Wang D, Yu C, Jiang J, Guo M, Hantoko D, Yan M. A two-step process for energy-efficient conversion of food waste via supercritical water gasification: Process design, products analysis, and electricity evaluation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 752:142331. [PMID: 33207504 DOI: 10.1016/j.scitotenv.2020.142331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/07/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
The huge amount of food waste (FW), containing high organic matter content and moisture, is difficult to be well treated. Supercritical water gasification (SCWG) can efficiently convert FW to H2-rich syngas. However, it requires high energy input due to the high temperature and high pressure. This study provided an innovative "two-steps heating process" for the SCWG of FW, which firstly utilized hydrothermal (HT) pretreatment to shorter time of SCWG. The effects of different HT temperature (200 °C, 250 °C, 300 °C, 30 min) to SCWG temperature (480 °C, 30 min) and the different residence time (20 min HT - 40 min SCWG, 30 min HT - 30 min SCWG, and 40 min HT - 20 min SCWG) on total syngas yield, carbon conversion efficiency (CE), cold gas efficiency (CGE), and hydrogen conversion efficiency (HE) were studied. Moreover, the energy input by means of electricity consumption in each experiment was measured to determine the energy saving rate. The optimal condition (200 °C, 20 min HT - 40 min SCWG), obtaining the gas yield (17.22 mol/kg), CE (20.10%), CGE (22.13%), and HE (41.54%), was higher than the gas yield (16.53 mol/kg), CE (19.98%), CGE (20%), and HE (38.08%) of directly SCWG (60 min, 0 °C-480 °C). Moreover, the TOC of derived liquid and the pyrolysis characteristics of solid residues were analyzed. Additionally, it was also observed the HT pretreatment helped to reduce the electricity consumption. The highest energy saving rate was 15.58%.
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Affiliation(s)
- Jianyong Liu
- Institute of Energy and Power Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Defeng Wang
- Hangzhou Linjiang Environmental Energy Co. Ltd., Hangzhou 311222, China
| | - Caimeng Yu
- Zhejiang Zheneng Xingyuan Energy Saving Technology Co. Ltd, Hangzhou 310013, China
| | - Jiahao Jiang
- Institute of Energy and Power Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Meihui Guo
- Institute of Energy and Power Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Dwi Hantoko
- Institute of Energy and Power Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Mi Yan
- Institute of Energy and Power Engineering, Zhejiang University of Technology, Hangzhou, China.
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16
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Yaashikaa PR, Kumar PS, Saravanan A, Varjani S, Ramamurthy R. Bioconversion of municipal solid waste into bio-based products: A review on valorisation and sustainable approach for circular bioeconomy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:141312. [PMID: 32814288 DOI: 10.1016/j.scitotenv.2020.141312] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/19/2020] [Accepted: 07/26/2020] [Indexed: 06/11/2023]
Abstract
Municipal solid waste management is one of the major issues throughout the world. Inappropriate management of municipal solid waste (MSW) can pose a major hazard. Anaerobic processing of MSW followed by methane and biogas generation is one of the numerous sustainable energy source options. Compared with other technologies applicable for the treatment of MSW, factors like economic aspects, energy savings, and ecological advantages make anaerobic processing an attractive choice. This review discusses the framework for evaluating conversion of municipal solid waste to energy and waste derived bioeconomy in order to address the sustainable development goals. Further, this review will provide an innovative work foundation to improve the accuracy of structuring, quality control, and pre-treatment for the ideal treatment of different segments of MSW to achieve a sustainable circular bioeconomy. The increasing advancements in three essential conversion pathways, in particular the thermochemical, biochemical, and physiochemical conversion methods, are assessed. Generation of wastes should be limited and resource utilization must be minimised to make total progress in a circular bioeconomy.
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Affiliation(s)
- P R Yaashikaa
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603 110, Tamil Nadu, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603 110, Tamil Nadu, India; SSN-Centre for Radiation, Environmental Science and Technology (SSN-CREST), Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, Tamil Nadu, India.
| | - A Saravanan
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai 602 105, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar 382010, Gujarat, India.
| | - Racchana Ramamurthy
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603 110, Tamil Nadu, India; Department of Environmental Engineering and Water Technology, IHE Delft Institute for Water Education, PO Box 3015, 2601, DA, Delft, the Netherlands
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17
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Vu HP, Nguyen LN, Vu MT, Johir MAH, McLaughlan R, Nghiem LD. A comprehensive review on the framework to valorise lignocellulosic biomass as biorefinery feedstocks. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 743:140630. [PMID: 32679491 DOI: 10.1016/j.scitotenv.2020.140630] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/22/2020] [Accepted: 06/28/2020] [Indexed: 05/26/2023]
Abstract
An effective pretreatment is the first step to enhance the digestibility of lignocellulosic biomass - a source of renewable, eco-friendly and energy-dense materials - for biofuel and biochemical productions. This review aims to provide a comprehensive assessment on the advantages and disadvantages of lignocellulosic pretreatment techniques, which have been studied at the lab-, pilot- and full-scale levels. Biological pretreatment is environmentally friendly but time consuming (i.e. 15-40 days). Chemical pretreatment is effective in breaking down lignocellulose and increasing sugar yield (e.g. 4 to 10-fold improvement) but entails chemical cost and expensive reactors. Whereas the combination of physical and chemical (i.e. physicochemical) pretreatment is energy intensive (e.g. energy production can only compensate 80% of the input energy) despite offering good process efficiency (i.e. > 100% increase in product yield). Demonstrations of pretreatment techniques (e.g. acid, alkaline, and hydrothermal) in pilot-scale have reported 50-80% hemicellulose solubilisation and enhanced sugar yields. The feasibility of these pilot and full-scale plants has been supported by government subsidies to encourage biofuel consumption (e.g. tax credits and mandates). Due to the variability in their mechanisms and characteristics, no superior pretreatment has been identified. The main challenge lies in the capability to achieve a positive energy balance and great economic viability with minimal environmental impacts i.e. the energy or product output significantly surpasses the energy and monetary input. Enhancement of the current pretreatment techno-economic efficiency (e.g. higher product yield, chemical recycling, and by-products conversion to increase environmental sustainability) and the integration of pretreatment methods to effectively treat a range of biomass will be the steppingstone for commercial lignocellulosic biorefineries.
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Affiliation(s)
- Hang P Vu
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2220, Australia
| | - Luong N Nguyen
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2220, Australia.
| | - Minh T Vu
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2220, Australia
| | - Md Abu Hasan Johir
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2220, Australia
| | - Robert McLaughlan
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2220, Australia
| | - Long D Nghiem
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2220, Australia; NTT Institute of Hi-Technology, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam
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18
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Ebrahimian F, Karimi K, Kumar R. Sustainable biofuels and bioplastic production from the organic fraction of municipal solid waste. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 116:40-48. [PMID: 32784120 DOI: 10.1016/j.wasman.2020.07.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/12/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
Municipal solid waste is an environmental threat worldwide; however, the organic fraction of municipal solid waste (OF-MSW) has a great potential for the generation of fuels and high-value products. In the current study, OF-MSW was utilized for the production of ethanol, hydrogen, as well as 2,3-butanediol, an octane booster, by using Enterobacter aerogenes. Furthermore, a promising alternative to non-biodegradable petrochemical-based polymers, polyhydroxyalkanoates (PHAs), was produced. The OF-MSW was first pretreated by an acetic acid catalyzed ethanol organosolv pretreatment at 120 and 160 °C followed by enzymatic hydrolysis of the residual solids. The residual unhydrolyzed solids resulting from enzymatic hydrolysis were further anaerobically digested for methane production. The enzymatic hydrolysis of the solids prepared at 120 °C for 60 min led to the production of hydrolysate with the highest glucose production yield of 498.5 g/kg dry untreated OF-MSW, which was fermented to 139.1 g 2,3-butanediol, 98.3 g ethanol, 28.6 g acetic acid, 71.4 L biohydrogen, and 40 g PHAs. Moreover, 23.1 L biomethane was produced through the anaerobic digestion of the enzymatic hydrolysis residue solids. Thus, appreciable amounts of energy (8236.9 kJ) and an eco-friendly bioplastic were produced by the valorization of carbon sources available in OF-MSW.
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Affiliation(s)
- Farinaz Ebrahimian
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Rajeev Kumar
- Center of Environmental and Research Technology (CE-CERT), Bourns College of Engineering, University of California, Riverside, CA 92507, USA.
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19
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Zhang W, Venetsaneas N, Heaven S, Banks CJ. Impact of low loading on digestion of the mechanically-separated organic fraction of municipal solid waste. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 107:101-112. [PMID: 32334149 DOI: 10.1016/j.wasman.2020.03.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 03/11/2020] [Accepted: 03/12/2020] [Indexed: 06/11/2023]
Abstract
Changing waste management practice, introduction of new technologies, and population demographics and behaviour will impact on both quantity and composition of future waste streams. Laboratory-scale anaerobic digestion of the mechanically-separated organic fraction of municipal solid waste (ms-OFMSW) was carried out at relatively low organic loading rates (OLR), and results analysed using an energy modelling tool. Thermophilic operation with water addition and liquor recycle was compared to co-digestion with dilution water replaced by sewage sludge digestate (SSD); thermophilic and mesophilic mono-digestion were also tested at low OLR. All thermophilic conditions showed stable operation, with specific methane production (SMP) from 0.203 to 0.296 m3 CH4 kg-1 volatile solids (VS). SSD addition increased biogas production by ~20% and there was evidence of further hydrolysis and degradation of the SSD. Long-term operation at 1 kg VS m-3 day-1 had no adverse effect except in mesophilic conditions where SMP was lower at 0.256 m3 CH4 kg-1 VS and stability was reduced, especially during OLR increases. This was probably due to low total ammonia nitrogen, which stabilised at ~0.2 g N kg-1 and limited the buffering capacity. Energy analysis showed thermophilic operation at OLR 2 g VS L-1 day-1 gave 42% of the theoretical methane potential and 38% of the higher heating value, reducing to 37% and 34% respectively in mesophilic conditions. Scenario modelling indicated that under low ms-OFMSW load even an energy-depleted co-substrate such as SSD could contribute to the energy balance, and would be a better diluent than water due to its nutrient and buffering capacity.
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Affiliation(s)
- Wei Zhang
- Faculty of Engineering and Physical Sciences, University of Southampton, UK
| | - Nikolaos Venetsaneas
- Faculty of Engineering and Physical Sciences, University of Southampton, UK; School of Civil Engineering, University of Birmingham, UK; National Buried Infrastructure Facility, University of Birmingham, UK.
| | - Sonia Heaven
- Faculty of Engineering and Physical Sciences, University of Southampton, UK
| | - Charles J Banks
- Faculty of Engineering and Physical Sciences, University of Southampton, UK
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20
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Dornau A, Robson JF, Thomas GH, McQueen-Mason SJ. Robust microorganisms for biofuel and chemical production from municipal solid waste. Microb Cell Fact 2020; 19:68. [PMID: 32178677 PMCID: PMC7077162 DOI: 10.1186/s12934-020-01325-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 03/06/2020] [Indexed: 01/30/2023] Open
Abstract
Background Worldwide 3.4 billion tonnes of municipal solid waste (MSW) will be produced annually by 2050, however, current approaches to MSW management predominantly involve unsustainable practices like landfilling and incineration. The organic fraction of MSW (OMSW) typically comprises ~ 50% lignocellulose-rich material but is underexplored as a biomanufacturing feedstock due to its highly inconsistent and heterogeneous composition. This study sought to overcome the limitations associated with studying MSW-derived feedstocks by using OMSW produced from a realistic and reproducible MSW mixture on a commercial autoclave system. The resulting OMSW fibre was enzymatically hydrolysed and used to screen diverse microorganisms of biotechnological interest to identify robust species capable of fermenting this complex feedstock. Results The autoclave pre-treated OMSW fibre contained a polysaccharide fraction comprising 38% cellulose and 4% hemicellulose. Enzymatic hydrolysate of OMSW fibre was high in d-glucose (5.5% w/v) and d-xylose (1.8%w/v) but deficient in nitrogen and phosphate. Although relatively low levels of levulinic acid (30 mM) and vanillin (2 mM) were detected and furfural and 5-hydroxymethylfurfural were absent, the hydrolysate contained an abundance of potentially toxic metals (0.6% w/v). Hydrolysate supplemented with 1% yeast extract to alleviate nutrient limitation was used in a substrate-oriented shake-flask screen with eight biotechnologically useful microorganisms (Clostridium saccharoperbutylacetonicum, Escherichia coli, Geobacillus thermoglucosidasius, Pseudomonas putida, Rhodococcus opacus, Saccharomyces cerevisiae, Schizosaccharomyces pombe and Zymomonas mobilis). Each species’ growth and productivity were characterised and three species were identified that robustly and efficiently fermented OMSW fibre hydrolysate without significant substrate inhibition: Z. mobilis, S. cerevisiae and R. opacus, respectively produced product to 69%, 70% and 72% of the maximum theoretical fermentation yield and could theoretically produce 136 kg and 139 kg of ethanol and 91 kg of triacylglycerol (TAG) per tonne of OMSW. Conclusions Developing an integrated biorefinery around MSW has the potential to significantly alleviate the environmental burden of current waste management practices. Substrate-oriented screening of a representative and reproducible OMSW-derived fibre identified microorganisms intrinsically suited to growth on OMSW hydrolysates. These species are promising candidates for developing an MSW biorefining platform and provide a foundation for future studies aiming to valorise this underexplored feedstock.
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Affiliation(s)
- Aritha Dornau
- Centre for Novel Agricultural Products (CNAP), Department of Biology, University of York, Heslington, YO10 5DD, York, UK
| | - James F Robson
- Department of Biology, University of York, Heslington, YO10 5DD, York, UK
| | - Gavin H Thomas
- Department of Biology, University of York, Heslington, YO10 5DD, York, UK
| | - Simon J McQueen-Mason
- Centre for Novel Agricultural Products (CNAP), Department of Biology, University of York, Heslington, YO10 5DD, York, UK.
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21
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Ebrahimian F, Karimi K. Efficient biohydrogen and advanced biofuel coproduction from municipal solid waste through a clean process. BIORESOURCE TECHNOLOGY 2020; 300:122656. [PMID: 31893536 DOI: 10.1016/j.biortech.2019.122656] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/06/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
The cleanest form of energy, i.e., biohydrogen, and advanced biofuel, i.e., biobutanol, were produced from the organic fraction of municipal solid waste (OFMSW). Ethanol as a byproduct of this process was used for the pretreatment of this substrate, and this pretreatment was improved by other process byproducts, i.e., acetic acid and butyric acid. The pretreatment was conducted with 85% ethanol and 0-1% (w/w) acetic/butyric acid at 120 and 160 °C for 30 min. The pretreatment catalyzed by 1% (w/w) acetic acid at 120 °C resulted in a hydrolysate with 49.8 g/L total fermentable sugars, which was fermented to the highest overall yield of acetone, butanol, and ethanol (ABE) and hydrogen. Through this process, 114.1 g butanol, 43.8 g acetone, 15.1 g ethanol, 97.5 L hydrogen were obtained from each kg of OFMSW, producing 270 g ABE and 151 L H2 from each kg of substrate, corresponding to 6000 kJ energy production.
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Affiliation(s)
- Farinaz Ebrahimian
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
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22
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Han W, He P, Shao L, Lü F. Road to full bioconversion of biowaste to biochemicals centering on chain elongation: A mini review. J Environ Sci (China) 2019; 86:50-64. [PMID: 31787190 DOI: 10.1016/j.jes.2019.05.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 05/16/2019] [Accepted: 05/16/2019] [Indexed: 06/10/2023]
Abstract
Production of biochemicals from waste streams has been attracting increasing worldwide interest to achieve climate protection goals. Chain elongation (CE) for production of medium-chain carboxylic acids (MCCAs, especially caproate, enanthate and caprylate) from diverse biowaste has emerged as a potential economic and environmental technology for a sustainable society. The present mini review summarizes the research utilizing various synthetic or real waste-derived substrates available for MCCA production. Additionally, the microbial characteristics of the CE process are surveyed and discussed. Considering that a large proportion of recalcitrantly biodegradable biowaste and residues cannot be further utilized by CE systems and remain to be treated and disposed, we propose here a loop concept of bioconversion of biowaste to MCCAs making full use of the biowaste with zero emission. This could make possible an alternative technology for synthesis of value-added products from a wide range of biowaste, or even non-biodegradable waste (such as, plastics and rubbers). Meanwhile, the remaining scientific questions, unsolved problems, application potential and possible developments for this technology are discussed.
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Affiliation(s)
- Wenhao Han
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Pinjing He
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China; Institute of Waste Treatment and Reclamation, Tongji University, Shanghai 200092, China; Centre for the Technology Research and Training on Household Waste in Small Towns & Rural Area, Ministry of Housing and Urban-Rural Development of China (MOHURD), China
| | - Liming Shao
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China; Institute of Waste Treatment and Reclamation, Tongji University, Shanghai 200092, China; Centre for the Technology Research and Training on Household Waste in Small Towns & Rural Area, Ministry of Housing and Urban-Rural Development of China (MOHURD), China
| | - Fan Lü
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China; Institute of Waste Treatment and Reclamation, Tongji University, Shanghai 200092, China.
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23
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Yang S, Song L. Succession of bacterial community structure and metabolic function during solid waste decomposition. BIORESOURCE TECHNOLOGY 2019; 291:121865. [PMID: 31369926 DOI: 10.1016/j.biortech.2019.121865] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 07/15/2019] [Accepted: 07/20/2019] [Indexed: 06/10/2023]
Abstract
Bacterial community structure and metabolic function during solid waste decomposition were investigated using Illumina MiSeq sequencing and phylogenetic investigation of communities by reconstruction of unobserved states, respectively. Results showed that bacterial community diversity and structure differed in aerobic phase, anaerobic acid phase, and methanogenic phase. Anaerobic acid phase had significantly (p < 0.05) higher richness. Proteobacteria, Firmicutes, and Bacteroidetes were the dominant representatives with significant (p < 0.05) difference between three phases. Total nitrogen of solid waste and pH of leachate were the important factors in shaping bacterial community composition. Bacterial metabolism, information storage and processing, and cellular processes and signaling were the primary functions during solid waste decomposition. Key function genes (amo, nar, nis, and nos) profiles suggested that nitrification and denitrifiation mainly occurred in AP and both AP and MP, respectively.
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Affiliation(s)
- Shu Yang
- Departments of Geology & Geophysics, University of Utah, Salt Lake City, UT 84112, USA
| | - Liyan Song
- Environmental Microbiology and Ecology Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Science, Chongqing 400714, China.
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24
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Zhao W, Zhao F, Zhang S, Gong Q, Chen G. Ethanol production by simultaneous saccharification and cofermentation of pretreated corn stalk. J Basic Microbiol 2019; 59:744-753. [DOI: 10.1002/jobm.201900117] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/28/2019] [Accepted: 05/05/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Wenxuan Zhao
- Jilin Agricultural University; Innovation Platform of Straw Comprehensive Utilization of Jilin Province; Changchun China
| | - Fuguang Zhao
- Jilin Agricultural University; Innovation Platform of Straw Comprehensive Utilization of Jilin Province; Changchun China
| | - Sitong Zhang
- Jilin Agricultural University; Innovation Platform of Straw Comprehensive Utilization of Jilin Province; Changchun China
| | - Qinglong Gong
- Jilin Agricultural University; Innovation Platform of Straw Comprehensive Utilization of Jilin Province; Changchun China
| | - Guang Chen
- Jilin Agricultural University; Innovation Platform of Straw Comprehensive Utilization of Jilin Province; Changchun China
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25
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Önen S, Nsair A, Kuchta K. Innovative operational strategies for biogas plant including temperature and stirring management. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2019; 37:237-246. [PMID: 30557120 DOI: 10.1177/0734242x18816800] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Finding the optimum operational conditions (mainly temperature and stirring) inside the fermenters is crucial in the field of anaerobic digestion. This study was conducted to contribute to the research area of anaerobic digestion process optimization and is an example for other biogas plants to improve efficiency. The research aimed at finding the optimum operational conditions in a large-scale biogas plant located in Lower Saxony, Germany, which started operation in 2011. The optimization activities were performed by operating the fermenters under different operational conditions: the temperature inside the fermenters ranged between 40°C and 43°C, while applying several stirring scenarios. These changes led to an increase in specific electricity yield of 11.7% and a decrease in internal energy consumption of 10.4%. The total internal energy consumption of the biogas plant was in the range of 6.3-7.2% (the average monthly internal energy consumption was 6.7% in 2013 and 6.0% in 2014) from their own production, and 28% of this energy consumption was used by the stirrers before optimization. Therefore, finding the optimum operational conditions leads to high energy harvesting and lower internal energy consumption.
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Affiliation(s)
- Senem Önen
- TUHH - Hamburg University of Technology, Institute of Environmental Technology and Energy Economics, Waste Resources Management, Hamburg, Germany
| | - Abdullah Nsair
- TUHH - Hamburg University of Technology, Institute of Environmental Technology and Energy Economics, Waste Resources Management, Hamburg, Germany
| | - Kerstin Kuchta
- TUHH - Hamburg University of Technology, Institute of Environmental Technology and Energy Economics, Waste Resources Management, Hamburg, Germany
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26
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Razavi AS, Hosseini Koupaie E, Azizi A, Hafez H, Elbeshbishy E. Bioenergy production data from anaerobic digestion of thermally hydrolyzed organic fraction of municipal solid waste. Data Brief 2019; 22:1018-1026. [PMID: 30740487 PMCID: PMC6355964 DOI: 10.1016/j.dib.2019.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 12/30/2018] [Accepted: 01/10/2019] [Indexed: 01/11/2023] Open
Abstract
The presented dataset in this data article provides quantitative data on the production of bioenergy (biogas and biomethane) from mesophilic batch anaerobic digestion (AD) of thermally hydrolyzed organic fraction of municipal solid waste (OFMSW). The discussion and interpretation of the data are provided in another publication entitled “Hydrothermal Pretreatment of Source Separated Organics for Enhanced Solubilization and Biomethane Recovery” (Razavi et al., 2019). The data and information presented in the current data article include (1) the ratio of soluble to particulate chemical oxygen demand (COD) under different thermal hydrolysis condition, (2) the daily measured biogas and biomethane data, (3) the cumulative methane yield data in terms of mL CH4 produced per gram of volatile suspended solids (VSS) as well as feedstock added, (4) the ultimate methane yield data as well as the relative improvement in methane recovery compared to the control (non-hydrolyzed) digester, (5) the data of first-order organics biodegradation rate constants, (6) the procedure of measuring biogas composition via gas chromatography, (7) the procedure of converting the biogas/methane volume data acquired under the actual experimental condition (mesophilic temperature of 38 °C and atmospheric pressure) to the standard temperature (0 °C) and pressure (1 atm) condition, and (8) the procedure of determining the first-order kinetic rate constants.
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Affiliation(s)
- A S Razavi
- Environmental Research Group for Resource Recovery, Civil Engineering Department, Faculty of Engineering, Architecture and Science, Ryerson University 350 Victoria Street, Toronto, ON, Canada M5B 2K3
| | - E Hosseini Koupaie
- Environmental Research Group for Resource Recovery, Civil Engineering Department, Faculty of Engineering, Architecture and Science, Ryerson University 350 Victoria Street, Toronto, ON, Canada M5B 2K3
| | - A Azizi
- Environmental Research Group for Resource Recovery, Civil Engineering Department, Faculty of Engineering, Architecture and Science, Ryerson University 350 Victoria Street, Toronto, ON, Canada M5B 2K3
| | - H Hafez
- Greenfield Global, Chatham, ON, Canada N7M 5J4
| | - E Elbeshbishy
- Environmental Research Group for Resource Recovery, Civil Engineering Department, Faculty of Engineering, Architecture and Science, Ryerson University 350 Victoria Street, Toronto, ON, Canada M5B 2K3
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Razavi AS, Hosseini Koupaie E, Azizi A, Hafez H, Elbeshbishy E. Hydrothermal pretreatment of source separated organics for enhanced solubilization and biomethane recovery. BIORESOURCE TECHNOLOGY 2019; 274:502-511. [PMID: 30553962 DOI: 10.1016/j.biortech.2018.12.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 12/07/2018] [Accepted: 12/08/2018] [Indexed: 06/09/2023]
Abstract
The objective of this research was to evaluate the effect of the hydrothermal pretreatment on the solubilization of source separated organics (SSO) as well as the biomethane recovery through the mesophilic batch anaerobic digestion process. For this purpose, the SSO was subjected to fifteen different pretreatment conditions within five different severity index (SI) values (3, 3.5, 4, 4.5, and 5). The pretreatment temperature, holding time, and pressure ranged from 150 to 240 °C, 5 to 30 min, and 476 to 3367 kPa, respectively. The highest solubilization improvement of ∼50% was achieved under the pretreatment condition of "220 °C-10 min-2323 kPa" corresponding to the SI value of 4.5. However, the maximum biomethane production yield of 280 mL/g TCODadded and biomethane production rate of 30 mL/g TCODadded were obtained under the less intense pretreatment conditions of "190 °C-20 min-1247 kPa" and "170 °C-30 min-786 kPa", respectively.
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Affiliation(s)
- A S Razavi
- Environmental Research Group for Resource Recovery, Department of Civil Engineering, Faculty of Engineering, Architecture and Science, Ryerson University, 350 Victoria Street, Toronto, Ontario M5B 2K3, Canada
| | - E Hosseini Koupaie
- Environmental Research Group for Resource Recovery, Department of Civil Engineering, Faculty of Engineering, Architecture and Science, Ryerson University, 350 Victoria Street, Toronto, Ontario M5B 2K3, Canada
| | - A Azizi
- Environmental Research Group for Resource Recovery, Department of Civil Engineering, Faculty of Engineering, Architecture and Science, Ryerson University, 350 Victoria Street, Toronto, Ontario M5B 2K3, Canada
| | - H Hafez
- Environmental Research Group for Resource Recovery, Department of Civil Engineering, Faculty of Engineering, Architecture and Science, Ryerson University, 350 Victoria Street, Toronto, Ontario M5B 2K3, Canada; Greenfield Global, 275 Bloomfield Road, Chatham, Ontario N7M 0N6, Canada
| | - E Elbeshbishy
- Environmental Research Group for Resource Recovery, Department of Civil Engineering, Faculty of Engineering, Architecture and Science, Ryerson University, 350 Victoria Street, Toronto, Ontario M5B 2K3, Canada.
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Farmanbordar S, Amiri H, Karimi K. Simultaneous organosolv pretreatment and detoxification of municipal solid waste for efficient biobutanol production. BIORESOURCE TECHNOLOGY 2018; 270:236-244. [PMID: 30219575 DOI: 10.1016/j.biortech.2018.09.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/01/2018] [Accepted: 09/03/2018] [Indexed: 06/08/2023]
Abstract
Municipal solid waste (MSW) was used as a source for biobutanol production via acetone, butanol, and ethanol (ABE) fermentation. Organosolv pretreatment was used for simultaneous extraction of inhibitors, particularly tannins, and pretreatment of lignocellulosic fraction prior to hydrolysis. The hydrolysates of the pretreated MSW contained appreciable amounts of sugars and soluble starch together with a tolerable amount of inhibitors for Clostridium acetobutylicum. The hydrolysate obtained from MSW pretreated with 85% ethanol at 120 °C for 30 min fermented to the highest ABE concentration of 13.06 g/L with the yield of 0.33 g/g carbon source. Through this process, 102.4 mg butanol, 40.16 mg acetone, and 13.14 mg ethanol were produced from each g of organic fraction of MSW (OFMSW). The pretreatment at mild conditions with higher ethanol concentration accompanied with the lowest glucose yield (0.145 g/g) and the highest starch recovery resulted in the uppermost ABE yield of 0.16 g/g OFMSW.
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Affiliation(s)
- Sara Farmanbordar
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Hamid Amiri
- Department of Biotechnology, Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan 81746-73441, Iran; Environmental Research Institute, University of Isfahan, Isfahan 81746-73441, Iran
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
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