Article
Thermodynamics
Shuai Tang, Sijie Huang, Weizhong Jiang, Haifeng Lu, Yuanhui Zhang, Bo Zhou, Buchun Si
Summary: The establishment of a multistage anaerobic hythane reactor (MAHR) that integrates biohythane and biomethane production into a single reactor demonstrates promising potential for simultaneously producing hythane and methane. The study shows that stable hythane and methane production can be achieved in MAHR without inoculum preselection, and MAHR without inoculum preselection suggests a higher methane production rate and resistance to organic loading shock. The microbial community dynamics and stage separation mechanisms are also explored in this study.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Agricultural Engineering
Przemys Law Liczbinski, Sebastian Borowski, Weronika Cieciura-W
Summary: This study demonstrates that kitchen waste can be co-digested with pretreated grass at high loading rates, but the digesters must be operated at thermophilic temperatures. Metagenomic analysis reveals differences in microbial community composition during digestion processes at different temperatures.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Giuseppe Lembo, Antonella Signorini, Antonella Marone, Claudio Carbone, Alessandro Agostini
Summary: This study evaluates the economic performances and carbon footprint of innovative systems for the energetic valorization of second cheese whey. The results show that the on-site two-stage anaerobic digester (TAD) is the most economically viable option with a significant reduction in greenhouse gas emissions.
Article
Green & Sustainable Science & Technology
Alyne Martins Maciel, Marcelo Henrique Otenio, Vanessa Romario de Paula, Virginia Mendonca Lourenco Benhami, Cassiano Moro Piekarski, Camila Marcal da Rocha, Nathan Oliveira Barros
Summary: The environmental impacts of milk production farms in Brazil were assessed using LCA, and it was found that anaerobic digestion can significantly reduce the impacts on acidification, eutrophication, and climate change by 25% to 38%.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Energy & Fuels
Jaewon Byun, Jee-hoon Han
Summary: Food waste generation has increased, and the environmental pollution and energy waste caused by the conventional treatment system are critical issues for achieving sustainability. This study proposes a large-scale food waste treatment system for hydrogen production, consisting of anaerobic digestion and steam methane reforming. The simulation model and economic feasibility analysis show a minimum selling price of US$ 26.3/kg for producing 0.2 t/d of hydrogen from 50 t/d of food waste. The sensitivity analysis demonstrates that increasing the processing capacity to 2000 t/d can reduce the minimum selling price to US$ 6.2/kg, comparable to fossil-based hydrogen price.
Article
Energy & Fuels
Justyna Tarapata, Marcin Zielinski, Justyna Zulewska
Summary: This study evaluated the methane potential of permeates generated during milk protein concentration and analyzed the possibility of using them to produce electricity and heat. The results showed that anaerobic digestion could fulfill the energy demands of a dairy plant and generate extra income.
Article
Environmental Sciences
Zhe Yu, Wenzong Liu, Yingjun Shi, Bo Wang, Cong Huang, Chunshuang Liu, Aijie Wang
Summary: The use of microbial electrolysis cell (MEC) can enhance the degradation of waste sludge lysate for high hydrogen production, leading to an increase in chemical oxygen demand (COD) removal efficiency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Yusron Sugiarto, Nimas M. S. Sunyoto, Mingming Zhu, Isabelle Jones, Dongke Zhang
Summary: The study found that the main elements Fe, K, and Ca in biochar help promote the production of H-2 hydrogen, especially increasing the dominance of Clostridium butyricum, thereby increasing the hydrogen production yield.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Tingting Hou, Jiamin Zhao, Zhongfang Lei, Kazuya Shimizu, Zhenya Zhang
Summary: This study found that supplementation of N-2 and Air-nanobubble water can significantly enhance the efficiency of hydrogen and methane production in the two-stage anaerobic digestion of food waste. Air-NBW has a promoting effect on both hydrogen and methane production stages, while N-2-NBW only has a positive impact on the hydrogen production stage.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agricultural Engineering
Jiachen Sun, Le Zhang, Kai-Chee Loh
Summary: The pursuit of affordable biofuels requires continuous improvement of utilization strategies, focusing on cost-effective raw materials, accessible bioprocessing, and high-quality products. This study proposes an integrated approach combining synergistic alkali pretreatment and arrested AD, exploring the interaction between initial pH, cell viability/functionality, and VFA production. The results demonstrate the feasibility of combining pretreatment and methanogenesis arrest for cost-effective and scalable biofuels production.
BIORESOURCE TECHNOLOGY
(2023)
Review
Agricultural Engineering
Santhana Raj Deena, A. S. Vickram, S. Manikandan, R. Subbaiya, N. Karmegam, Balasubramani Ravindran, Soon Woong Chang, Mukesh Kumar Awasthi
Summary: Biogas generation through anaerobic co-digestion of food waste and activated sludge is an excellent solution to address global challenges and meet increasing energy demands, while also providing a cleaner alternative for pollution and wastewater treatment. However, the efficiency and stability of this technology are hindered by irregularities in the substrate. Adjusting process parameters, optimizing substrate composition, and adding biochar as an additive can enhance the efficiency and outcome of the system.
BIORESOURCE TECHNOLOGY
(2022)
Article
Microbiology
Sato Hasaka, Saki Sakamoto, Katsuhiko Fujii
Summary: This study examined the adaptability of seed microorganisms in producing biogas from food processing wastes. The results demonstrated that the heterogeneity of bacterial members in the seed microflora facilitated quick adaptation to various types of food processing wastes and the hydrolysis of carbohydrates and proteins using specific enzymes. Compared to animal-derived wastes, wastes from plants, fruits, and crops were more suitable for hydrogen production.
Review
Energy & Fuels
J. Arun, T. Sasipraba, K. P. Gopinath, P. Priyadharsini, S. Nachiappan, N. Nirmala, S. S. Dawn, Nguyen Thuy Lan Chi, Arivalagan Pugazhendhi
Summary: This review focuses on biohydrogen production from biomass via dark fermentation, highlighting the mechanism and factors influencing the yield, as well as the challenges of storage and transport of bio-hydrogen.
Article
Agricultural Engineering
Ebba Perman, Anna Schnurer, Annika Bjorn, Jan Moestedt
Summary: Optimization of the biogas generation process is crucial for improving degradation and methane yield. In this study, serial digester systems were found to increase methane yield and protein degradation, while reducing the inhibitory effect of high ammonia levels on methane production.
BIOMASS & BIOENERGY
(2022)
Article
Green & Sustainable Science & Technology
Thomas Lendormi, Kais Jaziri, Fabrice Beline, Chrystelle Bureau, Cedric Midoux, Suzelle Barrington, Patrick Dabert, Sophie Le Roux
Summary: For small-scale farms, the development of rustic and cheap psychrophilic anaerobic digestion systems is an opportunity to treat manure, mitigate emissions, and promote renewable energy production. In this study, the most efficient inoculum for the start-up of psychrophilic anaerobic digestion of swine slurry at 13 ℃ was found to be swine manure stored for 2 months. After acclimation, the reactor produced a high methane yield, with a production efficiency of 55-68% at 13 ℃ compared to 37 ℃.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Biotechnology & Applied Microbiology
Keiron P. Roberts, Sonia Heaven, Charles J. Banks
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2019)
Article
Engineering, Environmental
Wei Zhang, Nikolaos Venetsaneas, Sonia Heaven, Charles J. Banks
Article
Microbiology
Anna M. Alessi, Bing Tao, Wei Zhang, Yue Zhang, Sonia Heaven, Charles J. Banks, James P. J. Chong
Article
Engineering, Chemical
Yue Zhang, Sigrid Kusch-Brandt, Sonia Heaven, Charles J. Banks
Article
Engineering, Chemical
Santiago Pacheco-Ruiz, Sonia Heaven, Charles J. Banks
Summary: The study found that solids retention time (SRT) had a significant impact on membrane fouling in anaerobic membrane bioreactors, with the least fouling observed at an SRT of 30 days. While operating at a short SRT was beneficial for membrane performance, it resulted in lower methane productivity and higher effluent COD.
Article
Engineering, Chemical
Yue Zhang, Sigrid Kusch-Brandt, Andrew M. Salter, Sonia Heaven
Summary: This study provides a detailed analysis and comparison of methane yields from different energy crops and crop residues, focusing on European crops, revealing significant differences in methane yields among different crops. The intra-crop variation of methane yield was found to be higher than the inter-crop variation, highlighting the high-risk nature of relying on individual assay results when planning biogas operations.
Article
Engineering, Environmental
Wei Zhang, Anna M. Alessi, Sonia Heaven, James P. J. Chong, Charles J. Banks
Summary: Transitions in microbial community structure in response to increasing ammonia concentrations were studied in mesophilic anaerobic digesters. The addition of trace elements, organic loading rates, and hydraulic retention times influenced metabolic routes and community structures. The study demonstrated a quantitative approach using 14C isotope analysis alongside sequencing data to understand methanogenic pathways and microbial populations.
Article
Engineering, Chemical
Angela Bywater, Sonia Heaven, Yue Zhang, Charles J. Banks
Summary: The UK's decarbonisation strategy includes energy from hydrogen and biomethane. By removing carbon dioxide, biogas can be upgraded to biomethane. The study uses publicly available datasets and modelling to identify potential scale and knowledge gaps.
Article
Engineering, Chemical
Yue Zhang, Sonia Heaven, Charles J. Banks
Summary: CO2 biomethanisation is a promising technology for reducing greenhouse gas emissions through sustainable use of organic feedstocks. However, the depletion of CO2 during the reaction leading to pH increase can cause instability and digestion failure. This study validates predictive equations for managing H-2 addition in anaerobic digesters and provides coefficient values for some organic feedstocks.
Editorial Material
Engineering, Chemical
Sigrid Kusch-Brandt, Sonia Heaven, Charles J. Banks
Article
Energy & Fuels
Bing Tao, Yue Zhang, Sonia Heaven, Charles J. Banks
Article
Green & Sustainable Science & Technology
Paul Eades, Sigrid Kusch-Brandt, Sonia Heaven, Charles J. Banks
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)