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Shevidi A, Lizasoain J, Wlcek B, Frühauf S, Gronauer A, Bauer A. Biogas Production from Steam-Exploded Maize Stover: Results from Continuous Anaerobic Tank Bioreactor Tests. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9040339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Steam explosion pretreatment of lignocellulosic biomass presents a promising technology for agricultural residues before anaerobic degradation. This study aimed to assess biogas production in continuously stirred tank reactors using steam-exploded maize stover mono-digestion. The continuous digestion tests were carried out in four fermenters with a capacity of 150 L under mesophilic and thermophilic conditions. Maize stover was pretreated at 173 °C for 15 min. Four different organic loading rates (OLR) were tested, the biogas and methane production rate was monitored, and parameters such as dry matter (DM), volatile solids (VS), pH, and C:N were analyzed. The results of the tests showed that using steam-exploded maize stover in a continuous system over the range of an OLR from 1.0 to 3.5 kg VS m–3 d–1 is feasible with nitrogen as an additive only. The maximum methane yield, 637 LN m–3 d–1, was measured under thermophilic conditions with an OLR of 3.5 kg VS m–3 d–1. The trend of an increased gas production rate with an increasing OLR was observed over the range of the applied OLRs, although the average gas yield in the thermophilic mode was higher than it was in the mesophilic one.
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Liu Y, Qian Y, Yong X, Jia H, Wei P, Zhou J. Effects of granular activated carbon and temperature on the viscosity and methane yield of anaerobically digested of corn straw with different dry matter concentrations. BIORESOURCE TECHNOLOGY 2021; 332:125109. [PMID: 33839508 DOI: 10.1016/j.biortech.2021.125109] [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: 01/16/2021] [Revised: 03/26/2021] [Accepted: 03/28/2021] [Indexed: 06/12/2023]
Abstract
Anaerobic digestion (AD) systems with high substrate concentrations are characterized by high viscosity, which affects material and energy transfer efficiencies, thereby influencing methane production efficiency. In this study, adding granular activated carbon (GAC) and increasing the temperature decreased the viscosity by 4.56-10.19% and 27.13-28.85%, respectively, and improved AD efficiency. Adding GAC and increasing the temperature enhanced the methane yields by 34.37-38.15% and 25.60-28.31%, respectively. Distance-based redundancy analysis showed that the viscosity, temperature, and GAC had the greatest effects on the composition of the microbial community. The dominant bacteria in the medium-temperature AD system at the phylum level belonged to Firmicutes, Bacteroidetes, and Euryarchaeota. In addition to the dominant bacteria in the medium-temperature AD system, the thermophilic phylum Thermotogae was abundant in the high-temperature AD system. Moreover, the relative abundance of Euryarchaeota, which contained most of the methanogens, was higher in the high-temperature AD system than in the medium-temperature AD system.
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Affiliation(s)
- Yongdi Liu
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China; Organic Recycling Institute (Suzhou) of China Agricultural University, Suzhou ViCheckBiotechnology Co, Ltd, Suzhou, Jiangsu 215000, China
| | - Yulei Qian
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Xiaoyu Yong
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Honghua Jia
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Ping Wei
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Jun Zhou
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
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Liu Y, Lin C, Jia H, Yong X, Xie X, Wu X, Zhou J, Wei P. Effects of amino-modified biofilm carriers on biogas production in the anaerobic digestion of corn straw. ENVIRONMENTAL TECHNOLOGY 2020; 41:2806-2816. [PMID: 30767709 DOI: 10.1080/09593330.2019.1583290] [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: 11/12/2018] [Accepted: 02/10/2019] [Indexed: 06/09/2023]
Abstract
This paper studied the property of three different biofilm carriers added into the anaerobic digestion systems, a granular activated carbon, a polyacrylonitrile, and a polyacrylonitrile modified with diethylenetriamine (PAN-NH2). The PAN-NH2 system kept the maximum biogas and methane production, which were 42.69% and 37.29% higher than the control system, respectively. The value of pH and chemical oxygen demand, the content of total solid and volatile solid, volatile fatty acids concentration, coenzyme F420 concentration, and microbial community analysis were investigated during the anaerobic digestion process. The PAN-NH2 system had the highest removal efficiency of the pollutants and regulated the pH of the system better than other systems. The result of high-throughput sequencing analysis showed that the addition of biofilm carriers and mediation with amino-groups adjusted system pH and improved biogas and CH4 production by reducing the relative abundance of bacteria in the hydrolysis/acidogenesis stages. Methanosarcina gradually replaced other methanogens during the experimental runs and was the dominant methanogen at the end of the anaerobic digestion process.
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Affiliation(s)
- Yongdi Liu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
- Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
| | - Chaoba Lin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
- Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
| | - Honghua Jia
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
| | - Xiaoyu Yong
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
- Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
| | - Xinxin Xie
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
- Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
| | - Xiayuan Wu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
- Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
| | - Jun Zhou
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
- Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
| | - Ping Wei
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu, People's Republic of China
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Gaballah ES, Abomohra AEF, Xu C, Elsayed M, Abdelkader TK, Lin J, Yuan Q. Enhancement of biogas production from rape straw using different co-pretreatment techniques and anaerobic co-digestion with cattle manure. BIORESOURCE TECHNOLOGY 2020; 309:123311. [PMID: 32289661 DOI: 10.1016/j.biortech.2020.123311] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 06/11/2023]
Abstract
The present study investigated the possibility of valorizing rape straw through anaerobic digestion and the possibility of improving biomethane yield by pretreatment with H2SO4, combined H2SO4 with steam explosion (SE) and SE combined with superfine grinding (SFG). To evaluate the pretreatment method efficiency, several analytical techniques were applied. Additionally, the performance of co-digesting of cattle manure (CM) with pretreated rape straw (PRS) at different ratios was evaluated. The results showed that combined pretreatment could dissolve the lignocellulosic fiber structure, which positively stimulated methane yield. The highest cumulative CH4 yield (CMY) of 305.7 mLg-1VS was achieved by combined SE at 180 °C for 5 min with SFG, which was 77.84% higher than the untreated. The CMY was further improved by 11.4-59% higher than the control (CM) using co-digestion. This study confirmed that, under optimal parameters of AD, pretreatment with SEG180 could significantly boost the CMY from co-digestion of CM and PRS.
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Affiliation(s)
- Eid S Gaballah
- College of Engineering, Huazhong Agricultural University, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Agricultural Engineering Department, Faculty of Agriculture, Fayoum University, 63514 Fayoum, Egypt
| | - Abd El-Fatah Abomohra
- Department of Environmental Engineering, School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, PR China; Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Chao Xu
- College of Engineering, Huazhong Agricultural University, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Mahdy Elsayed
- College of Engineering, Huazhong Agricultural University, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Tarek Kh Abdelkader
- College of Engineering, Huazhong Agricultural University, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Agricultural Engineering Department, Faculty of Agriculture, Fayoum University, 63514 Fayoum, Egypt
| | - Jiacong Lin
- College of Engineering, Huazhong Agricultural University, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Qiaoxia Yuan
- College of Engineering, Huazhong Agricultural University, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, PR China.
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Wang C, Zhang J, Hu F, Zhang S, Lu J, Liu S. Bio-pretreatment promote hydrolysis and acidification of oilseed rape straw: Roles of fermentation broth and micro-oxygen. BIORESOURCE TECHNOLOGY 2020; 308:123272. [PMID: 32276202 DOI: 10.1016/j.biortech.2020.123272] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/27/2020] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
Oilseed rape straw (ORS) is capable of producing renewable energy. However, cellulose, hemicellulose and lignin are intertwined together in ORS, which makes it difficult for anaerobic digestion (AD). Hence, pretreatment is the key factor in reducing the rate-limiting step of AD. This study reports that the pretreatment combined fermentation broth and micro-oxygen could enhance the degradation of ORS. The maximum biodegradation ratios of cellulose, hemicellulose, and lignin (CHL) were 20.6%, 18.1%, and 24.7%, respectively, at 120 mL/gVS/d oxygen load. The maximum volatile fatty acids and soluble chemical oxygen demand of hydrolysis and acidification of the pretreated groups were significantly higher than that of the control groups. Microorganisms in the fermentation broth at micro-aerobic conditions led to the reduction of CHL content, and altered the structure of ORS. The fermentation broth bio-pretreatment could effectively decrease the functional groups related to lignin.
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Affiliation(s)
- Chuqiao Wang
- School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China
| | - Jiajie Zhang
- School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China
| | - Fengping Hu
- School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China
| | - Shuai Zhang
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CIC-AEET), Nanjing University of Information Science & Technology, Nanjing 210044, China.
| | - Ji Lu
- Advanced Water Management Centre (AWMC), The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Shuai Liu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province 266042, China
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Steam Explosion Conditions Highly Influence the Biogas Yield of Rice Straw. Molecules 2019; 24:molecules24193492. [PMID: 31561500 PMCID: PMC6804039 DOI: 10.3390/molecules24193492] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 09/22/2019] [Accepted: 09/24/2019] [Indexed: 11/17/2022] Open
Abstract
Straws are agricultural residues that can be used to produce biomethane by anaerobic digestion. The methane yield of rice straw is lower than other straws. Steam explosion was investigated as a pretreatment to increase methane production. Pretreatment conditions with varying reaction times (12–30 min) and maximum temperatures (162–240 °C) were applied. The pretreated material was characterized for its composition and thermal and morphological properties. When the steam explosion was performed with a moderate severity parameter of S0 = 4.1 min, the methane yield was increased by 32% compared to untreated rice straw. This study shows that a harsher pretreatment at S0 > 4.3 min causes a drastic reduction of methane yield because inert condensation products are formed from hemicelluloses.
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Kainthola J, Kalamdhad AS, Goud VV. A review on enhanced biogas production from anaerobic digestion of lignocellulosic biomass by different enhancement techniques. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.05.023] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Chen W, Zhang S, Li Y, Wu H, Meng Q, Zhou Z. Steam-exploded sugarcane bagasse as a potential beef cattle feedstock: effects of different pretreatment conditions1. J Anim Sci 2019; 97:2414-2423. [PMID: 30982892 PMCID: PMC6541826 DOI: 10.1093/jas/skz127] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 04/11/2019] [Indexed: 11/13/2022] Open
Abstract
Sugarcane bagasse, a lignocellulosic biomass produced by sugar production, is rarely utilized directly due to economic concerns. However, pretreatment of this biomass could make it suitable as a feedstock for the beef cattle industry. Accordingly, this study investigated the effects of different steam explosion conditions on bagasse digestibility using in vitro fermentation techniques, scanning electron microscopy, and detailed chemical analyses. In vitro incubation of an untreated sample and samples pretreated at 6 different pressures ranging from 0.6 to 1.6 MPa at intervals of 0.2 MPa for 5 min was conducted out for 96 h. Results showed that increasing the pressure in the steam explosion pretreatment induced degradation of the hemicellulose and increased soluble sugar content, especially for arabinose (L; P < 0.01) and xylose contents (Q; P < 0.01). In vitro incubation showed that compared with untreated bagasse, gas production and degradation rate of the bagasse improved linearly (L; P < 0.01) after all treatments. The lag time disappeared with steam pressure above 1.0 MPa and the maximum gas production was obtained under pretreatment at 1.4 MPa for 5 min. Furthermore, pretreatment of bagasse by steam explosion enhanced (Q: P < 0.01) quadratically estimated energy values and OM digestibility. Thus, the current results demonstrate that sugarcane bagasse may be effectively used as a potential beef cattle feedstock after steam explosion pretreatment.
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Affiliation(s)
- Wanbao Chen
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Shuo Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Yan Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Hao Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Qingxiang Meng
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Zhenming Zhou
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
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Ma X, Jiang T, Chang J, Tang Q, Luo T, Cui Z. Effect of Substrate to Inoculum Ratio on Biogas Production and Microbial Community During Hemi-Solid-State Batch Anaerobic Co-digestion of Rape Straw and Dairy Manure. Appl Biochem Biotechnol 2019; 189:884-902. [DOI: 10.1007/s12010-019-03035-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 04/22/2019] [Indexed: 01/19/2023]
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Xu H, Che X, Ding Y, Kong Y, Li B, Tian W. Effect of crystallinity on pretreatment and enzymatic hydrolysis of lignocellulosic biomass based on multivariate analysis. BIORESOURCE TECHNOLOGY 2019; 279:271-280. [PMID: 30738353 DOI: 10.1016/j.biortech.2018.12.096] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 12/24/2018] [Accepted: 12/26/2018] [Indexed: 05/26/2023]
Abstract
In this work, multivariate data analysis was employed to correlate variables of pretreatment process of lignocellulosic biomass. Principal component analysis and partial least square methods were performed to get the inner-relationship and data interpretation between the crystallinity and other parameters of mechanical refining-assisted sodium hydroxide pretreatment followed by enzymatic saccharification of corn stover. The PCA and PLS models showed that Sodium hydroxide dosage, mechanical refining treatment, lignin removal rate and crystallinity had close inner-related relationship with the efficiency of pretreatment and enzymolysis. Alkaline reaction and mechanical refining treatment had strong influence on the crystallinity. Multivariate data analysis revealed that pretreated corn stover samples with lower crystallinity were more easily hydrolyzed by enzyme and could get more final reducing sugar. This work could offer a new methodology to get further understanding of effect of crystallinity on the crop residue lignocellulosic biomass conversion process.
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Affiliation(s)
- Huanfei Xu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China; CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, PR China; PCC & Laboratory of Wood and Paper Chemistry, Ǻbo Akademi University, Turku FI-20500, Finland; state Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
| | - Xinpeng Che
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China; CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, PR China; state Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yu Ding
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yi Kong
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China; state Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Bin Li
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, PR China
| | - Wende Tian
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China; state Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
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Mulat DG, Dibdiakova J, Horn SJ. Microbial biogas production from hydrolysis lignin: insight into lignin structural changes. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:61. [PMID: 29541158 PMCID: PMC5844095 DOI: 10.1186/s13068-018-1054-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
BACKGROUND The emerging cellulosic bioethanol industry will generate huge amounts of lignin-rich residues that may be converted into biogas by anaerobic digestion (AD) to increase the output of energy carriers from the biorefinery plants. The carbohydrates fraction of lignocellulosic biomass is degradable, whereas the lignin fraction is generally considered difficult to degrade during AD. The objective of this study was to investigate the feasibility of biogas production by AD from hydrolysis lignin (HL), prepared by steam explosion (SE) and enzymatic saccharification of birch. A novel nylon bag technique together with two-dimensional nuclear magnetic resonance spectroscopy, pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS), and Fourier transform infrared (FTIR) spectroscopy was used to identify recalcitrant and degradable structures in the lignin during AD. RESULTS The HL had a lignin content of 80% which included pseudo-lignin and condensed-lignin structures resulting from the SE pretreatment. The obtained methane yield from HL was almost twofold higher than the theoretical methane from the carbohydrate fraction alone, indicating that part of the lignin was converted to methane. Characterization of the undegradable material after AD revealed a substantial loss of signals characteristic for carbohydrates and lignin-carbohydrate complexes (LCC), indicating conversion of these chemical components to methane during AD. The β-O-4' linkage and resinol were not modified as such in AD, but major change was seen for the S/G ratio from 5.8 to 2.6, phenylcoumaran from 4.9 to 1.0%, and pseudo-lignin and condensed-lignin were clearly degraded. Scanning electron microscopy and simultaneous thermal analysis measurements demonstrated changes in morphology and thermal properties following SE pretreatment and AD. Our results showed that carbohydrate, LCC, pseudo-lignin, and condensed-lignin degradation had contributed to methane production. The energy yield for the combined ethanol production and biogas production was 8.1 MJ fuel per kg DM of substrate (4.9 MJ/kg from ethanol and 3.2 MJ/kg from methane). CONCLUSION This study shows the benefit of using a novel bag technique together with advanced analytical techniques to investigate the degradation mechanisms of lignin during AD, and also points to a possible application of HL produced in cellulosic bioethanol plants.
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Affiliation(s)
- Daniel Girma Mulat
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway
| | - Janka Dibdiakova
- Norwegian Institute of Bioeconomy Research, P.O. Box 115, 1432 Ås, Norway
| | - Svein Jarle Horn
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway
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Zhou J, Yang J, Yu Q, Yong X, Xie X, Zhang L, Wei P, Jia H. Different organic loading rates on the biogas production during the anaerobic digestion of rice straw: A pilot study. BIORESOURCE TECHNOLOGY 2017; 244:865-871. [PMID: 28847074 DOI: 10.1016/j.biortech.2017.07.146] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/23/2017] [Accepted: 07/24/2017] [Indexed: 05/16/2023]
Abstract
The aim of this work was to investigate the mesophilic methane fermentation of rice straw at different organic loading rates (OLRs) in a 300m3 bioreactor. It was found that biogas production increased when the OLR was below 2.00kg VSsubstrate/(m3·d). The average volumetric biogas production reached 0.86m3/(m3·d) at an OLR of 2.00kg VSsubstrate/(m3·d). Biogas production rate was 323m3/t dry rice straw over the whole process. The pH, chemical oxygen demand, volatile fatty acid, and NH4+-N concentrations were all in optimal range at different OLRs. High-throughput sequencing analysis indicated that Firmicutes, Fibrobacteres, and Spirochaetes predominated in straw samples. Chloroflexi, Proteobacteria, and Planctomycetes were more abundant in the slurry. The hydrogenotrophic pathway was the main biochemical pathway of methanogenesis in the reactor. This study provides new information regarding the OLR and the differences in the spatial distribution of specific microbiota in a rice straw biogas plant.
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Affiliation(s)
- Jun Zhou
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Jun Yang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Qing Yu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Xiaoyu Yong
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Xinxin Xie
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Lijuan Zhang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Ping Wei
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Honghua Jia
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
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13
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Liu Y, Zhu Y, Jia H, Yong X, Zhang L, Zhou J, Cao Z, Kruse A, Wei P. Effects of different biofilm carriers on biogas production during anaerobic digestion of corn straw. BIORESOURCE TECHNOLOGY 2017; 244:445-451. [PMID: 28800553 DOI: 10.1016/j.biortech.2017.07.171] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/27/2017] [Accepted: 07/28/2017] [Indexed: 06/07/2023]
Abstract
This study investigated the performance of anaerobic digestion systems using four types of fibrous biofilm carriers, a polypropylene, a polyester, a polyamide, and a polyurethane fiber material. The biogas and methane production, pH, chemical oxygen demand, total solids content, volatile solids content, residual coenzyme F420, and microbial community compositions were determined during the experimental runs. Furthermore, scanning electron microscopy was employed to identify the microbial consortium and examine their attachment onto the surface of the four fibrous biofilm carriers. The polypropylene fiber system maintained the highest biogas and methane production in the reactor, which was 44.80% and 49.84% higher than that noted in the control, respectively, during the entire anaerobic fermentation cycle. Meanwhile, the polypropylene fiber system exhibited the highest TS, VS, and COD removal efficiency. The results of high-throughput sequencing indicated that the dominant species in the polypropylene fiber system were Methanoregula and Methanobacterium.
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Affiliation(s)
- Yongdi Liu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Yingdong Zhu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Honghua Jia
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xiaoyu Yong
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Lijuan Zhang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Jun Zhou
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
| | - Zebin Cao
- Institute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, Germany
| | - Andrea Kruse
- Institute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, Germany
| | - Ping Wei
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
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14
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Wang C, Hong F, Lu Y, Li X, Liu H. Improved biogas production and biodegradation of oilseed rape straw by using kitchen waste and duck droppings as co-substrates in two-phase anaerobic digestion. PLoS One 2017; 12:e0182361. [PMID: 28767709 PMCID: PMC5540530 DOI: 10.1371/journal.pone.0182361] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 07/17/2017] [Indexed: 11/18/2022] Open
Abstract
Oilseed rape straw (ORS) is a kind of biorefractory waste widely existing in the rural area of China, which is highly suitable to mix with kitchen waste (KW) and duck droppings (DD) in two-phase anaerobic digestion (AD). This research introduced the importance of KW and DD addition to improve the biogas production and biodegradation of ORS. A set of comparative experiments were conducted on two-phase mono- and co-digestion with organic load of 60 g VS/L. The total methane yield (TMY) and the biodegradation of ORS of co-digestions were obviously improving, and the synergistic effect found in the two-phase co-digestions. The optimum mixing ratio of ORS, KW and DD was 50:40:10, and the corresponding TMY and VS degradation rate of ORS were 374.5 mL/g VS and 49.7%, respectively. Addition of KW and DD maintained the pH within the optimal range for the hydrolyzing-acidification, improved the phase separation and buffering capacity of AD system.
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Affiliation(s)
- Chuqiao Wang
- School of Energy and Environment, Southeast University, Nanjing, China
| | - Feng Hong
- School of Energy and Environment, Southeast University, Nanjing, China
| | - Yong Lu
- School of Energy and Environment, Southeast University, Nanjing, China
| | - Xianning Li
- School of Energy and Environment, Southeast University, Nanjing, China
| | - Hengming Liu
- Ocean Science and Environment College, Dalian ocean University, Dalian, China
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15
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Tian JH, Pourcher AM, Bureau C, Peu P. Cellulose accessibility and microbial community in solid state anaerobic digestion of rape straw. BIORESOURCE TECHNOLOGY 2017; 223:192-201. [PMID: 27792929 DOI: 10.1016/j.biortech.2016.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 09/29/2016] [Accepted: 10/02/2016] [Indexed: 06/06/2023]
Abstract
Solid state anaerobic digestion (SSAD) with leachate recirculation is an appropriate method for the valorization of agriculture residues. Rape straw is a massively produced residue with considerable biochemical methane potential, but its degradation in SSAD remains poorly understood. A thorough study was conducted to understand the performance of rape straw as feedstock for laboratory solid state anaerobic digesters. We investigated the methane production kinetics of rape straw in relation to cellulose accessibility to cellulase and the microbial community. Improving cellulose accessibility through milling had a positive influence on both the methane production rate and methane yield. The SSAD of rape straw reached 60% of its BMP in a 40-day pilot-scale test. Distinct bacterial communities were observed in digested rape straw and leachate, with Bacteroidales and Sphingobacteriales as the most abundant orders, respectively. Archaeal populations showed no phase preference and increased chronologically.
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Affiliation(s)
- Jiang-Hao Tian
- IRSTEA, UR OPAALE, 17 Avenue de Cucillé, CS 64427, F-35044 Rennes, France; Université Bretagne Loire, France
| | - Anne-Marie Pourcher
- IRSTEA, UR OPAALE, 17 Avenue de Cucillé, CS 64427, F-35044 Rennes, France; Université Bretagne Loire, France
| | - Chrystelle Bureau
- IRSTEA, Hydrosystems and Bioprocesses Research Unit, 1 rue Pierre-Gilles de Gennes, CS 10030, 92761 Antony Cedex, France
| | - Pascal Peu
- IRSTEA, UR OPAALE, 17 Avenue de Cucillé, CS 64427, F-35044 Rennes, France; Université Bretagne Loire, France.
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16
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Jablonska MA, Rybarczyk MK, Lieder M. Electricity generation from rapeseed straw hydrolysates using microbial fuel cells. BIORESOURCE TECHNOLOGY 2016; 208:117-122. [PMID: 26930033 DOI: 10.1016/j.biortech.2016.01.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 01/14/2016] [Accepted: 01/18/2016] [Indexed: 06/05/2023]
Abstract
Rapeseed straw is an attractive fuel material for microbial fuel cells (MFCs) due to its high content of carbohydrates (more than 60% carbohydrates). This study has demonstrated that reducing sugars can be efficiently extracted from raw rapeseed straw by combination of hydrothermal pretreatment and enzymatic hydrolysis followed by utilization as a fuel in two-chamber MFCs for electrical power generation. The most efficient method of saccharification of this lignocellulosic biomass (17%) turned out hydrothermal pretreatment followed by enzymatic hydrolysis. Electricity was produced using hydrolysate concentrations up to 150 mg/dm(3). The power density reached 54 mW/m(2), while CEs ranged from 60% to 10%, corresponding to the initial reducing sugar concentrations of 10-150 mg/dm(3). The COD degradation rates based on charge calculation increased from 0.445 g COD/m(2)/d for the hydrolysate obtained with the microwave treatment to 0.602 g COD/m(2)/d for the most efficient combination of hydrothermal treatment followed by enzymatic hydrolysis.
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Affiliation(s)
- Milena A Jablonska
- Gdansk University of Technology, Narutowicza Str. 11/12, 80-233 Gdansk, Poland
| | - Maria K Rybarczyk
- Gdansk University of Technology, Narutowicza Str. 11/12, 80-233 Gdansk, Poland
| | - Marek Lieder
- Gdansk University of Technology, Narutowicza Str. 11/12, 80-233 Gdansk, Poland
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17
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Zhou J, Yan BH, Wang Y, Yong XY, Yang ZH, Jia HH, Jiang M, Wei P. Effect of steam explosion pretreatment on the anaerobic digestion of rice straw. RSC Adv 2016. [DOI: 10.1039/c6ra15330e] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Steam explosion pretreatment on the anaerobic digestion of rice straw.
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Affiliation(s)
- J. Zhou
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
- Bioenergy Research Institute
| | - B. H. Yan
- Lab of Waste Valorisation and Water Reuse
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Y. Wang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - X. Y. Yong
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
- Bioenergy Research Institute
| | - Z. H. Yang
- Key Laboratory of Material and Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- China
| | - H. H. Jia
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
- Bioenergy Research Institute
| | - M. Jiang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - P. Wei
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
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18
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Theuretzbacher F, Lizasoain J, Lefever C, Saylor MK, Enguidanos R, Weran N, Gronauer A, Bauer A. Steam explosion pretreatment of wheat straw to improve methane yields: investigation of the degradation kinetics of structural compounds during anaerobic digestion. BIORESOURCE TECHNOLOGY 2015; 179:299-305. [PMID: 25549903 DOI: 10.1016/j.biortech.2014.12.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 12/03/2014] [Accepted: 12/04/2014] [Indexed: 05/11/2023]
Abstract
Wheat straw can serve as a low-cost substrate for energy production without competing with food or feed production. This study investigated the effect of steam explosion pretreatment on the biological methane potential and the degradation kinetics of wheat straw during anaerobic digestion. It was observed that the biological methane potential of the non steam exploded, ground wheat straw (276 l(N) kg VS(-1)) did not significantly differ from the best steam explosion treated sample (286 l(N) kg VS(-1)) which was achieved at a pretreatment temperature of 140°C and a retention time of 60 min. Nevertheless degradation speed was improved by the pretreatment. Furthermore it was observed that compounds resulting from chemical reactions during the pretreatment and classified as pseudo-lignin were also degraded during the anaerobic batch experiments. Based on the rumen simulation technique, a model was developed to characterise the degradation process.
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Affiliation(s)
- Franz Theuretzbacher
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | - Javier Lizasoain
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria; alpS - Centre for Climate Change Adaptation, Grabenweg 68, A-6010 Innsbruck, Austria
| | - Christopher Lefever
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | - Molly K Saylor
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | - Ramon Enguidanos
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | - Nikolaus Weran
- Biogas Systems GmbH, Am Futterplatz 3106, 7111 Parndorf, Austria
| | - Andreas Gronauer
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | - Alexander Bauer
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria.
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19
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Wood IP, Wellner N, Elliston A, Wilson DR, Bancroft I, Waldron KW. Effect of Brassica napus cultivar on cellulosic ethanol yield. BIOTECHNOLOGY FOR BIOFUELS 2015; 8:99. [PMID: 26185525 PMCID: PMC4504093 DOI: 10.1186/s13068-015-0278-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 06/26/2015] [Indexed: 05/22/2023]
Abstract
BACKGROUND Intraspecific variations in biomass composition are likely to influence their suitability for biorefining. This may be particularly important in species such as Brassica napus, which contain many different crop types bred for different purposes. Here, straw derived from 17 B. napus cultivars, of varying crop types, were steam exploded, saccharified and fermented to establish differences in biomass composition relevant to cellulosic ethanol production. RESULTS Despite being grown and processed in the same manner, straw from the various cultivars produced different saccharification and fermentation yields after processing. Fermentation inhibitor abundances released by steam explosion also varied between genotypes. Cultivars with glucan-rich straw did not necessarily produce higher saccharification or ethanol yields after processing. Instead, the compositions of non-cellulosic components were more reliable indicators of substrate quality. The abundance of pectins and arabinogalactans had the greatest influence on saccharification efficiency between straw genotypes. CONCLUSIONS In dicotyledonous species, such as B. napus, variations in the abundance of pectins between crop cultivars are likely to influence processing efficiency for bioethanol production. Knowledge of these genotypic variants provides targets for plant breeding and could aid in the development of improved cellulase cocktails.
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Affiliation(s)
- Ian P. Wood
- />The Biorefinery Centre, Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA UK
| | - Nikolaus Wellner
- />Analytical Sciences Unit, Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA UK
| | - Adam Elliston
- />The Biorefinery Centre, Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA UK
| | - David R. Wilson
- />The Biorefinery Centre, Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA UK
| | - Ian Bancroft
- />Department of Biology, University of York, Heslington, York YO10 5DD UK
| | - Keith W. Waldron
- />The Biorefinery Centre, Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA UK
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20
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Do furanic and phenolic compounds of lignocellulosic and algae biomass hydrolyzate inhibit anaerobic mixed cultures? A comprehensive review. Biotechnol Adv 2014; 32:934-51. [DOI: 10.1016/j.biotechadv.2014.04.007] [Citation(s) in RCA: 311] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 04/14/2014] [Accepted: 04/18/2014] [Indexed: 11/23/2022]
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21
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Bauer A, Lizasoain J, Theuretzbacher F, Agger JW, Rincón M, Menardo S, Saylor MK, Enguídanos R, Nielsen PJ, Potthast A, Zweckmair T, Gronauer A, Horn SJ. Steam explosion pretreatment for enhancing biogas production of late harvested hay. BIORESOURCE TECHNOLOGY 2014; 166:403-10. [PMID: 24929812 DOI: 10.1016/j.biortech.2014.05.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 05/07/2014] [Accepted: 05/11/2014] [Indexed: 05/05/2023]
Abstract
Grasslands are often abandoned due to lack of profitability. Extensively cultivating grassland for utilization in a biogas-based biorefinery concept could mend this problem. Efficient bioconversion of this lignocellulosic biomass requires a pretreatment step. In this study the effect of different steam explosion conditions on hay digestibility have been investigated. Increasing severity in the pretreatment induced degradation of the hemicellulose, which at the same time led to the production of inhibitors and formation of pseudo-lignin. Enzymatic hydrolysis showed that the maximum glucose yields were obtained under pretreatment at 220 °C for 15 min, while higher xylose yields were obtained at 175 °C for 10 min. Pretreatment of hay by steam explosion enhanced 15.9% the methane yield in comparison to the untreated hay. Results indicate that hay can be effectively converted to methane after steam explosion pretreatment.
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Affiliation(s)
- Alexander Bauer
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria; AlpS-GmbH, Centre for Climate Change Adaptation Technologies, Grabenweg 68, A-6010 Innsbruck, Austria.
| | - Javier Lizasoain
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria; AlpS-GmbH, Centre for Climate Change Adaptation Technologies, Grabenweg 68, A-6010 Innsbruck, Austria
| | - Franz Theuretzbacher
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | - Jane W Agger
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - María Rincón
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | - Simona Menardo
- AlpS-GmbH, Centre for Climate Change Adaptation Technologies, Grabenweg 68, A-6010 Innsbruck, Austria; Mechanics Section, Department of Agricultural, Forest and Food Sciences (DISAFA), University of Torino, largo Paolo Braccini 2, 10095 Grugliasco, Torino, Italy
| | - Molly K Saylor
- AlpS-GmbH, Centre for Climate Change Adaptation Technologies, Grabenweg 68, A-6010 Innsbruck, Austria
| | - Ramón Enguídanos
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | | | - Antje Potthast
- University of Natural Resources and Life Sciences, Department of Chemistry, Institute of Chemistry of Renewable Resources, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | - Thomas Zweckmair
- University of Natural Resources and Life Sciences, Department of Chemistry, Institute of Chemistry of Renewable Resources, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | - Andreas Gronauer
- University of Natural Resources and Life Sciences, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, Austria
| | - Svein J Horn
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
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22
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Risberg K, Sun L, Levén L, Horn SJ, Schnürer A. Biogas production from wheat straw and manure--impact of pretreatment and process operating parameters. BIORESOURCE TECHNOLOGY 2013; 149:232-7. [PMID: 24121239 DOI: 10.1016/j.biortech.2013.09.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 09/09/2013] [Accepted: 09/12/2013] [Indexed: 05/19/2023]
Abstract
Non-treated or steam-exploded straw in co-digestion with cattle manure was evaluated as a substrate for biogas production compared with manure as the sole substrate. All digestions were performed in laboratory-scale CSTR reactors (5L) operating with an organic loading late of approximately 2.8 g VS/L/day, independent of substrate mixture. The hydraulic retention was 25 days and an operating temperature of 37, 44 or 52°C. The co-digestion with steam exploded straw and manure was evaluated with two different mixtures, with different proportion. The results showed stable performance but low methane yields (0.13-0.21 N L CH4/kg VS) for both manure alone and in co-digestion with the straw. Straw appeared to give similar yield as manure and steam-explosion treatment of the straw did not increase gas yields. Furthermore, there were only slight differences at the different operating temperatures.
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Affiliation(s)
- Kajsa Risberg
- Department of Microbiology, Swedish University of Agricultural Science, Uppsala BioCenter, P.O. Box 7025, SE-750 07 Uppsala, Sweden
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