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Samadamaeng N, Sawatdeenarunat C, Charnnok B. Enhancing biogas production from cattle manure: A circular economy approach with solar thermal pretreatment and soil conditioning. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 368:122086. [PMID: 39116806 DOI: 10.1016/j.jenvman.2024.122086] [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: 04/13/2024] [Revised: 07/29/2024] [Accepted: 07/31/2024] [Indexed: 08/10/2024]
Abstract
Biogas production from cattle manure, pivotal for sustainable waste and energy management, encounters challenges from its low digestibility linked to lignocellulosic structures. This study investigates biogas efficiency enhancement through anaerobic digestion coupled with solar thermal (ST) pretreatment and digestate application in Napier grass cultivation (STAD-G). ST pretreatment at 40-60 °C for 20 h markedly increases methane yield, validated by pilot-scale trials that exhibited a 3.9-fold surge in methane production, attributed to improved acidification. Untreated manure's structure, however, impedes acidification, slowing methanogenesis as shown by lower volatile fatty acid concentration in effluents. In addition, utilizing digestate as soil conditioner notably improves grass yield (19.3 ± 0.8 ton dry/ha/year) and protein content, akin to urea fertilizer. Furthermore, the STAD-G system incurs higher upfront costs, it yields superior biogas efficiency and enhanced long-term financial returns. This integrated approach, by boosting economic and environmental sustainability, advocates for ST pretreatment as a key strategy in advancing sustainable agriculture and energy solutions.
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Affiliation(s)
- Nureesan Samadamaeng
- Faculty of Environmental Management, Prince of Songkla University, Hat Yai District, Songkhla Province, 90110, Thailand
| | - Chayanon Sawatdeenarunat
- Asian Development College for Community Economy and Technology, Chiang Mai Rajabhat University, Chiang Mai, 50300, Thailand
| | - Boonya Charnnok
- Energy Technology Program, Department of Interdisciplinary Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai District, Songkhla Province, 90110, Thailand.
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Zeng D, Zhang Y, Ma X, Li J, Yin F, Li D, Bie W. Biosynthesis of poly(β-L-malic acid) from rubberwood enzymatic hydrolysates in co-fermentation by Aureobasidium pullulans. Int J Biol Macromol 2024; 257:128605. [PMID: 38061508 DOI: 10.1016/j.ijbiomac.2023.128605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 11/27/2023] [Accepted: 12/02/2023] [Indexed: 01/26/2024]
Abstract
Co-fermentation of multiple substrates has emerged as the most effective method to improve the yield of bioproducts. Herein, sustainable rubberwood enzymatic hydrolysates (RWH) were co-fermented by Aureobasidium pullulans to produce poly(β-L-malic acid) (PMA), and RWH + glucose/xylose was also investigated as co-substrates. Owing to low inhibitor concentration and abundant natural nitrogen source content of RWH, a high PMA yield of 0.45 g/g and a productivity of 0.32 g/L/h were obtained by RWH substrate fermentation. After optimization, PMA yields following the fermentation of RWH + glucose and RWH + xylose reached 59.92 g/L and 53.71 g/L, respectively, which were 52 % and 36 % higher than that after the fermentation of RWH. RWH + glucose more significantly affected the correlation between PMA yield and substrate concentration than RWH + xylose. The results demonstrated that the co-fermentation of RWH co-substrate is a promising method for the synthesis of bioproducts.
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Affiliation(s)
- Dongdong Zeng
- College of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, PR China
| | - Yutian Zhang
- College of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, PR China
| | - Xiaojun Ma
- College of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, PR China.
| | - Jianing Li
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, PR China
| | - Fen Yin
- College of Mechanical Engineering, Qinghai University, Xining 810016, PR China
| | - Dongna Li
- College of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, PR China
| | - Wenxuan Bie
- College of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, PR China
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Rabelo SC, Nakasu PYS, Scopel E, Araújo MF, Cardoso LH, Costa ACD. Organosolv pretreatment for biorefineries: Current status, perspectives, and challenges. BIORESOURCE TECHNOLOGY 2023; 369:128331. [PMID: 36403910 DOI: 10.1016/j.biortech.2022.128331] [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: 09/27/2022] [Revised: 11/08/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Biorefineries integrate processes for the sustainable conversion of biomass into chemicals, materials, and bioenergy so that resources are optimized and effluents are minimized. Despite the vast potential of lignocellulosic biorefineries, their success depends heavily on effective, economically viable, and sustainable biomass fractionation. Although efficient, organosolv pretreatment still faces challenges that must be overcome for its widespread utilization, mainly related to solvent type and recycling, robustness regarding biomass type and integration of hemicellulose recovery and use. This review shows the recent advances and state-of-the-art of organosolv pretreatment, discussing the advances, such as the use of biobased solvents, whilst also shedding light on the perspectives of using the streams - cellulose, hemicellulose, and lignin - to produce biofuels and products of high added value. In addition, it presents an overview of the existing industrial implementations of organosolv processes and, lastly, shows the main scientific and industrial challenges and opportunities for this process.
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Affiliation(s)
- Sarita Cândida Rabelo
- School of Agriculture, São Paulo State University (Unesp), Botucatu Campus, Botucatu, São Paulo, Brazil.
| | | | - Eupídio Scopel
- Institute of Chemistry, State University of Campinas (Unicamp), Campinas, São Paulo, Brazil
| | | | - Luiz Henrique Cardoso
- School of Agriculture, São Paulo State University (Unesp), Botucatu Campus, Botucatu, São Paulo, Brazil; Institute of Biosciences, São Paulo State University (Unesp), Botucatu Campus, Botucatu, São Paulo, Brazil
| | - Aline Carvalho da Costa
- Chemical Engineering School in State University of Campinas (Unicamp), Campinas, São Paulo, Brazil
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Noori MT, Min B. Fundamentals and recent progress in bioelectrochemical system-assisted biohythane production. BIORESOURCE TECHNOLOGY 2022; 361:127641. [PMID: 35863600 DOI: 10.1016/j.biortech.2022.127641] [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: 05/30/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
Biohythane, a balanced mixture of 10%-30% v/v of hydrogen and 70%-90% v/v of methane, could be the backbone of an all-purpose future energy supply. Recently, bioelectrochemical systems (BES) became a new sensation among environmental biotechnology processes with the potential to sustainably generate biohythane. Therefore, to unleash its full potential for scaling up, researchers are consistently improving microbial metabolic pathways, novel reactors, and electrode designs. This review presents a detailed analysis of recently discovered fundamental mechanisms and science and engineering intervention of different strategies to improve the biohythane composition and production rate from BES. However, several milestones are to be achieved, for instance, improving electrode kinetics using efficient catalysts, engineered microbial communities, and improved reactor configurations, for commercializing this sustainable technology. Thus, a future perspective section is included to recommend novel research lines, mainly focusing on the microbial communities and the efficient electrocatalysts, to enhance reactor performance.
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Affiliation(s)
- Md Tabish Noori
- Department of Environmental Science and Engineering, Kyung Hee University - Global Campus, Yongin-Si, Republic of Korea
| | - Booki Min
- Department of Environmental Science and Engineering, Kyung Hee University - Global Campus, Yongin-Si, Republic of Korea.
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Charnnok B, Laosiripojana N. Integrative process for rubberwood waste digestibility improvement and levulinic acid production by hydrothermal pretreatment with acid wastewater conversion process. BIORESOURCE TECHNOLOGY 2022; 360:127522. [PMID: 35764279 DOI: 10.1016/j.biortech.2022.127522] [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: 04/28/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
This study aimed to develop an integrative process for converting rubberwood waste into sugars, methane, and levulinic acid. Sulfuric acid pretreatment at pH 2.5 yielded the highest glucose of 182.5 g/kg rubberwood waste. Replacing the acid solution with sulfuric acid wastewater led to 11.0% lower glucose yield than that obtained using sulfuric acid. However, the cost reduction equals the difference in revenues between sulfuric acid wastewater and sulfuric acid, resulting in similar total cost and revenue. Furthermore, thermal reactions of the process water resulted in the highest yield of levulinic acid, 17.9% at 220 °C. Meanwhile, anaerobic digestibility of enzymatic hydrolysis residue was increased using inoculum from a digester treating pig farm wastewater owing to the acetoclastic pathway. These co-products potentially returned additional revenues, accounting for 45.8% of the total revenue. These findings highlight the potential pathway for valorization of rubberwood waste via the integrated approach with acid wastewater pretreatment.
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Affiliation(s)
- Boonya Charnnok
- Department of Specialized Engineering, Energy Technology Program, Faculty of Engineering, Prince of Songkla University, Hat Yai Campus, Hat Yai District, Songkhla Province 90110, Thailand; Department of Civil and Environmental Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai Campus, Hat Yai, Songkhla 90110, Thailand.
| | - Navadol Laosiripojana
- The Joint Graduate School for Energy and Environment (JGSEE), King Mongkut's University of Technology Thonburi, Prachauthit Road, Bangmod, Bangkok 10140, Thailand
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Sidiras D, Politi D, Giakoumakis G, Salapa I. Simulation and optimization of organosolv based lignocellulosic biomass refinery: A review. BIORESOURCE TECHNOLOGY 2022; 343:126158. [PMID: 34673192 DOI: 10.1016/j.biortech.2021.126158] [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: 08/29/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
Organosolv pretreatment can be considered as the core of the lignocellulosic biomass fractionation within the biorefinery concept. Organosolv facilitates the separation of the major fractions (cellulose, hemicelluloses, lignin), and their use as renewable feedstocks to produce bioenergy, biofuels, and added-value biomass derived chemicals. The efficient separation of these fractions affects the economic feasibility of the biorefinery complex. This review focuses on the simulation of the organosolv pretreatment and the optimization of (i) feedstock delignification, (ii) sugars production (mainly from hemicelluloses), (iii) enzymatic digestibility of the cellulose fraction and (iv) quality of lignin. Simulation is used for the technoeconomic optimization of the biorefinery complex. Simulation and optimization implement a holistic approach considering the efficient technological, economic, and environmental performance of the biorefinery operational units. Consequently, an optimized organosolv stage is the first step for a sustainable, economically viable biorefinery complex in the concept of industrial ecology and zero waste circular economy.
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Affiliation(s)
- Dimitrios Sidiras
- Laboratory of Simulation of Industrial Processes, Department of Industrial Management and Technology, University of Piraeus, 80 Karaoli & Dimitriou, GR 18534, Piraeus, Greece.
| | - Dorothea Politi
- Laboratory of Simulation of Industrial Processes, Department of Industrial Management and Technology, University of Piraeus, 80 Karaoli & Dimitriou, GR 18534, Piraeus, Greece
| | - Georgios Giakoumakis
- Laboratory of Simulation of Industrial Processes, Department of Industrial Management and Technology, University of Piraeus, 80 Karaoli & Dimitriou, GR 18534, Piraeus, Greece
| | - Ioanna Salapa
- Laboratory of Simulation of Industrial Processes, Department of Industrial Management and Technology, University of Piraeus, 80 Karaoli & Dimitriou, GR 18534, Piraeus, Greece
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Comparing Low-Temperature Hydrothermal Pretreatments through Convective Heating versus Microwave Heating for Napier Grass Digestion. Processes (Basel) 2020. [DOI: 10.3390/pr8101221] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study investigates the effects of convective hydrothermal pretreatment (CHTP) compared to microwave pretreatment (MWP) on the anaerobic digestion of hybrid Napier grass for biomethane production. For rapid estimation of methane yield (YCH4), enzymatic hydrolyzability (EH), whose test lasts only 2 days was used as a surrogate parameter instead of the biochemical methane potential (BMP) assay that normally takes 45–60 days. The relationship between EH and BMP was successfully modeled with satisfactory accuracy (R2 = 0.9810). From CHTP results, quadratic regression characterised by p < 0.0001 and R2 = 0.8364 shows that YCH4 increase was clearly sensitive to detention time at all CHTP temperatures. The maximal YCH4 achieved of 301.5 ± 3.0 mL CH4/gVSadd was 53.2% higher than the control. Then, MWP was employed at various power levels and microwave exposure times. Changes in lignocellulosic structure by Fourier-transform infrared spectroscopy (FTIR) and energy balance demonstrate that MWP caused more damage to plant cells, which proved more effective than CHTP. In the best conditions, approximately 50% of energy was needed for MWP to achieve the equivalent improvement in YCH4. However, CHTP is a more suitable option since waste heat, i.e., from a biogas CHP (combined heat and power) unit, could be used, as opposed to the electricity required for MWP.
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Moodley P, Sewsynker-Sukai Y, Gueguim Kana EB. Progress in the development of alkali and metal salt catalysed lignocellulosic pretreatment regimes: Potential for bioethanol production. BIORESOURCE TECHNOLOGY 2020; 310:123372. [PMID: 32312596 DOI: 10.1016/j.biortech.2020.123372] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 05/26/2023]
Abstract
Lignocellulosic biomass (LCB) is well suited to address present day energy and environmental concerns, since it is abundant, environmentally benign and sustainable. However, the commercial application of LCB has been limited by its recalcitrant structure. To date, several biomass pretreatment systems have been developed to address this major bottleneck but have shown to be toxic and costly. Alkali and metal salt pretreatment regimes have emerged as promising non-toxic and low-cost treatments. This paper examines the progress made in lignocellulosic pretreatment using alkali and metal salts. The reaction mechanism of alkali and metal chloride salts on lignocellulosic biomass degradation are reviewed. The effect of salt pretreatment on lignin removal, hemicellulose solubilization, cellulose crystallinity, and physical structural changes are also presented. In addition, the enzymatic digestibility and inhibitor profile from salt pretreated lignocellulosic biomass are discussed. Furthermore, the challenges and future prospects on lignocellulosic pretreatment and bioethanol production are highlighted.
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Affiliation(s)
- Preshanthan Moodley
- University of KwaZulu-Natal, School of Life Sciences, Pietermaritzburg, South Africa
| | - Yeshona Sewsynker-Sukai
- University of KwaZulu-Natal, School of Life Sciences, Pietermaritzburg, South Africa; SMRI/NRF SARChI Research Chair in Sugarcane Biorefining, Discipline of Chemical Engineering, University of KwaZulu-Natal, Durban, South Africa
| | - E B Gueguim Kana
- University of KwaZulu-Natal, School of Life Sciences, Pietermaritzburg, South Africa.
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