Article
Agricultural Engineering
Mathu Indren, Cristian H. Birzer, Stephen P. Kidd, Tony Hall, Paul R. Medwell
Summary: The study demonstrates that high dosages of pristine biochar can improve the performance of high-solids anaerobic digesters, while low dosages and re-used biochar may not have significant effects.
BIOMASS & BIOENERGY
(2021)
Article
Agricultural Engineering
Zahra Al Hasani, Jagdeep Kumar Nayak, Halima Alhimali, Abdullah Al-Mamun
Summary: The study found that the use of conductive additive GAC/nZVI in anaerobic digestion process can significantly increase the biogas production and methane generation, as well as improve the removal rate of COD.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Physical
Marina Tomasini, Mariana De Oliveira Faber, Viridiana Santana Ferreira-Leitao
Summary: Sugarcane straw is not effectively utilized in the industry currently, but sugarcane straw hemicellulose hydrolyzate (HH) shows promise as a raw material for H2 and CH4 production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Thermodynamics
Kavosh Karami, Keikhosro Karimi, Safoora Mirmohamadsadeghi, Rajeev Kumar
Summary: This study investigated the effects of biological pretreatment on biogas production from lignocellulosic biomass and studied the combination effect with other pretreatment methods. The results showed that aerobic digestion was the only pretreatment method that could individually improve methane yield from pinewood, but combining aerobic digestion with mild thermochemical pretreatment could achieve even higher methane yield.
Article
Engineering, Environmental
F. Granzotto, C. Aita, D. D. Silveira, F. D. Mayer, S. B. Pujol, J. A. Pinas, R. Hoffmann
Summary: Anaerobic digestion proved to be an efficient method for treating organic wastes from university restaurants, achieving high removal rates of pollutants and producing biogas and digestate for potential use as organic fertilizer.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Eun Seo Lee, Seon Yeong Park, Chang Gyun Kim
Summary: This study attempted to convert surplus hydrogen to methane through anaerobic digestion by hydrogenotrophic methanogen, aiming to overcome the drawbacks of hydrogen escaping from small or middle-scale industries. A biochemical methane potential test was conducted by injecting hydrogen and carbon dioxide directly into the reactors for 30 days. The results showed an increase in cumulative methane yield and methane content in the biogas, with a significant improvement in the quality of biogas. Microbial community analysis indicated that hydrogenotrophic methanogenesis played a dominant role in enhancing methane production.
Article
Engineering, Environmental
Bikash R. Tiwari, Satinder Kaur Brar, Rao Y. Surampalli
Summary: Thermophilic anaerobic digestion is a viable strategy to reduce municipal sludge volume and generate renewable energy. In this study, ultrasonication was found to be the best pretreatment method to enhance the digestion process.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Environmental Sciences
Luong N. Nguyen, Jeevan Kumar, Minh T. Vu, Johir A. H. Mohammed, Nirenkumar Pathak, Audrey S. Commault, Donna Sutherland, Jakub Zdarta, Vinay Kumar Tyagi, Long D. Nghiem
Summary: Anaerobic co-digestion (AcoD) and biogas upgrade have enabled many wastewater treatment plants to become net energy producers. While water scrubbing is currently the most widely used technology, significant market growth in membrane separation has been observed, with further advancements in materials engineering and sciences expected to enhance membrane separation competitiveness in biogas upgrading.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Chemistry, Physical
Devaraj Thiruselvi, Ponnusamy Senthil Kumar, Madhava Anil Kumar, Chyi-How Lay, Salma Aathika, Yuvarani Mani, D. Jagadiswary, Anuradha Dhanasekaran, Palaniyandi Shanmugam, Subramanian Sivanesan, Pau-Loke Show
Summary: The review discusses the significance of renewable biogas production technology in reducing greenhouse gas emissions and addressing global warming, highlighting the importance of sustainable techniques in meeting energy demands. Anaerobic digestion for biogas production from waste is recognized as a leading green energy solution for environmental management and meeting global energy challenges.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Jiaxin Chen, Ji Li, Bin Ye, Xiaolei Zhang, R. D. Tyagi, Xinlei Gao
Summary: Management of chicken manure in Morocco has become a focus due to the increasing demand for chicken and eggs. The bioconversion of chicken manure into biogas can reduce the amount of manure while generating clean energy. Comparing with co-firing, pyrolysis, and gasification, anaerobic digestion of chicken manure was found to be superior in terms of energy gain.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Rajagopal Malolan, Ramesh Sai Jayaraman, Srikanth Adithya, Jayaseelan Arun, Kannappan Panchamoorthy Gopinath, Panneer Selvam SundarRajan, Omaima Nasif, Woong Kim, Muthusamy Govarthanan
Summary: This study introduces a zero emission concept for waste disposal and explores the potential for renewable green energy production by utilizing a mixture of cow dung and chicken waste for biogas production. The study evaluates the impact of different proportions of waste mixtures and the addition of Chlorella pyrenoidosa co-substrate on biogas distribution and production efficiency.
Review
Environmental Sciences
Hamed Kazemi Shariat Panahi, Mona Dehhaghi, Gilles J. Guillemin, Vijai Kumar Gupta, Su Shiung Lam, Mortaza Aghbashlo, Meisam Tabatabaei
Summary: Anaerobic fungi have great potential in the biofuel and biogas industries for their ability to degrade lignocellulose. However, the engineering tools for anaerobic fungi have not been established yet. Pre-treatment of lignocellulose by anaerobic fungi can prevent carbohydrate loss and increase biogas production. Bioaugmentation with anaerobic fungi can significantly enhance methane biosynthesis. Nonetheless, novel genetic engineering techniques and tools are needed for the commercial anaerobic digestion process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Sagarika Mothe, Venkateswara Rao Polisetty
Summary: This paper discusses the environmental and health hazards caused by burning rice straw waste, and proposes anaerobic digestion into biomethane gas and digestate as an effective technology. Co-digestion of rice straw with nitrogen-rich substrates is proven to balance the carbon to nitrogen ratio and increase biomethane yield.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Agricultural Engineering
Shuaishuai Ma, Hongliang Wang, Binshou Wang, Xiaohui Gu, Wanbin Zhu
Summary: The study demonstrated that pretreatment with CO2 and liquid digestate from anaerobic digestion can improve the glucose and xylose content of corn straw, reduce cellulose crystallinity, and increase methane yield. However, high temperature pretreatment resulted in the production of inhibitors that decreased methane production during subsequent anaerobic digestion. The changes in microbial community in the pretreated slurry at lower temperature were found to enhance the overall performance of anaerobic digestion.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Shilan Elyasi, Narges Fallah, Babak Bonakdarpour, Amir Mahboubi, Mohammad J. Taherzadeh
Summary: The study demonstrated the efficient anaerobic removal of styrene from wastewater at 35 degrees C with ethanol as co-substrate and co-solvent, leading to a high methane yield. However, at high styrene concentrations, methane production and microbial products sharply decreased.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Radziah Wahid, Lu Feng, Wen-Feng Cong, Alastair James Ward, Henrik Bjarne Moller, Jorgen Eriksen
BIOMASS & BIOENERGY
(2018)
Article
Engineering, Chemical
Alastair James Ward, Lu Feng, Veronica Moset, Henrik Bjarne Moller
CHEMICAL ENGINEERING & TECHNOLOGY
(2018)
Article
Environmental Sciences
Veronica Moset, R. Wahid, A. Ward, H. B. Moller
ENVIRONMENTAL TECHNOLOGY
(2019)
Article
Green & Sustainable Science & Technology
Veronica Moset, Cristiane de Almeida Neves Xavier, Lu Feng, Radziah Wahid, Henrik Bjarne Moller
JOURNAL OF CLEANER PRODUCTION
(2018)
Article
Green & Sustainable Science & Technology
Md. Anisur Rahman, Henrik Bjarne Moller, Chayan Kumer Saha, Md. Monjurul Alam, Radziah Wahid, Lu Feng
Article
Engineering, Environmental
Michael Bjerg-Nielsen, Alastair James Ward, Henrik Bjarne Moller, Lars Ditlev Merck Ottosen
Article
Agricultural Engineering
Wen-Feng Cong, Veronica Moset, Lu Feng, Henrik Bjarne Moller, Jurgen Eriksen
BIOMASS & BIOENERGY
(2018)
Article
Agricultural Engineering
Lu Feng, Alastair J. Ward, Pau Grima Guixe, Veronica Moset, Henrik B. Moller
BIOSYSTEMS ENGINEERING
(2018)
Article
Green & Sustainable Science & Technology
V. Moset, S. Hille, G. H. Rubaek, H. B. Moller, R. Wahid, A. Baattrup-Pedersen
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Agricultural Engineering
Lu Feng, Yolanda Maria Lemes Perschke, Doline Fontaine, Marcell Nikolausz, Alastair James Ward, Ulisses Nunes da Rocha, Felipe Borim Correa, Jurgen Eriksen, Peter Sorensen, Henrik Bjarne Moller
INDUSTRIAL CROPS AND PRODUCTS
(2020)
Article
Engineering, Chemical
Alastair James Ward, Martin Riis Weisbjerg, Peter Lund, Nicholas John Hutchings
Summary: The anaerobic batch digestion of various substrates using polyester filter bags showed different gas production dynamics compared to non-bagged substrates. This method allows for sampling and measurement of parameters over time, and has potential for studying substrate degradation dynamics during anaerobic digestion.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Article
Environmental Sciences
Sutaryo Sutaryo, Retno Adiwinarti, Dian Sahrudi, Muhammad Misbahul Huda, Farhan Hendri Himawan, Alastair James Ward
Summary: This study investigated the effect of co-digestion of dairy cow manure and tofu cake on methane production. The results indicated that tofu cake could effectively increase methane production of dairy cow manure at certain mixing ratios.
JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT
(2022)
Review
Environmental Sciences
Lu Feng, Nabin Aryal, Yeqing Li, Svein Jarle Horn, Alastair James Ward
Summary: Anaerobic digestion (AD) is a versatile technology that can produce biofuels, biochemicals, and fertilizer as part of the circular bioeconomy. Agricultural residues, such as animal slurry, straw, and grass silage, are valuable resources with significant potential to increase biogas and methane yields. However, it is crucial to assess the long-term impacts and the potential accumulation of unwanted substances. This comprehensive literature review analyzes the benefits and environmental impacts of using agricultural residues for AD and highlights potential risks and challenges in developing a biogas-centered circular bioeconomy.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)