Article
Environmental Sciences
Nan Wang, Yutong Yang, Kunde Xu, Xiangang Long, Yurui Zhang, Hongzhou Liu, Tiezhu Chen, Jianchang Li
Summary: This study investigated the reasons behind the higher methane conversion and lower CO2 emissions in electrochemical anaerobic digestion (EAD) compared to anaerobic digestion (AD). Single-chamber AD and EAD reactors were utilized, with temperature as the variable factor. Various indicators such as current, pH, electrode potential, gas content, and microbial community were analyzed. The results revealed that EAD exhibited improved hydrogen-dependent CO2 reduction pathway and had specific dominant microorganisms, such as Trichloromonas, Oscillibacter, Syntrophomonas, and Methanosaeta.
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
Agricultural Engineering
Han Wang, Qun Yan, Xiaoqian Zhong, Irini Angelidaki, Ioannis A. Fotidis
Summary: Anaerobic co-digestion is a strategy for increasing methane production, but substrates rich in proteins and lipids can cause a synergetic co-inhibition effect. This study explored the microbial mechanisms behind the co-inhibition effect and found that ammonia played a major role in affecting methanogens. Decreased abundances of certain microorganisms and critical enzymes confirmed the synergetic co-inhibition effect.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Lucia Blasco, Minna Kahala, Satu Ervasti, Elina Tampio
Summary: This study investigated the effects of co-feedstock changes on the performance and evolution of microbial consortia in anaerobic digestion of cow slurry. Despite drastic changes in co-feedstock composition, stable and flexible anaerobic digestion can be achieved with cautious operation of the process.
BIORESOURCE TECHNOLOGY
(2022)
Article
Marine & Freshwater Biology
Maikon Kelbert, Naionara Ariete Daronch, Camila Senna Pereira, Karina Cesca, Camila Michels, Hugo Moreira Soares
Summary: The inhibitory effect of the anticancer drug doxorubicin on biogas production was evaluated. It was found that the inhibitory effect at higher concentrations is reversible and that the drug can be rapidly sorbed by biomass, potentially contributing to the inhibition.
AQUATIC TOXICOLOGY
(2023)
Article
Engineering, Environmental
Yun Peng, Pingjin Yang, Xiaoming Wang, Yanyan Zhang, Xuya Peng, Lei Li
Summary: The study reveals that deterministic processes may play a larger role in shaping the microbial community than stochastic processes regardless of the level and mode of TAN stress. Under high ammonia stress, acetogens are inhibited, leading to deterioration of AD process function.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Cedric Perez, Christine Lors, Pascal Floquet, Benjamin Erable
Summary: The study aims to investigate the role of biofilm in the biodeterioration of cementitious materials during anaerobic digestion. Results show the heterogeneity of microbial populations within the biofilm and their relationship to the reactive medium in anaerobic digestion.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Agricultural Engineering
Run-ze Xu, Shiyu Fang, Le Zhang, Wenxuan Huang, Qianqi Shao, Fang Fang, Qian Feng, Jiashun Cao, Jingyang Luo
Summary: Anaerobic digestion processes are crucial for resource recovery from organic wastes or wastewater. The role of functional anaerobic microorganisms is highlighted, but there is a lack of understanding of how different operational factors affect microbial communities. This review addresses the main functional microorganisms in AD, their response to various operational parameters, and potential research directions to enhance AD performance.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Dawei Yu, Qingqing Zhang, Bram De Jaegher, Jibao Liu, Qianwen Sui, Xiang Zheng, Yuansong Wei
Summary: The study found that in anaerobic digestion under ammonia stress, proton pump inhibitors can mitigate ammonia accumulation by inhibiting beta-oxidation of fatty acids and stimulating syntrophic acetate oxidation, thereby enhancing methane production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Kaili Ma, Zhiguo Cao, Yanrui Cui, Tingting Chen, Shijie Shan, Yuyang Shi, Wei Wang, Jinghua Lv
Summary: The addition of magnetite at different salinity levels enhances methane production in anaerobic digestion, increases granule formation, and promotes partnerships between hydrogenotrophic methanogens and syntrophic bacteria.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Manpreet Kaur, Prakash C. Sahoo, Manoj Kumar, Sarita Sachdeva, S. K. Puri
Summary: The addition of Fe3O4 and Ni NPs significantly accelerated substrate degradation rate and enhanced biomethane yield during anaerobic digestion of Azolla microphylla. The dominance of microbial species and enrichment of certain bacteria confirmed the efficient hydrolysis of Azolla biomass and enhanced methanogenesis via syntrophic metabolism of intermediate products. KEGG pathway analysis indicated the enhancement of major metabolic pathways in NPs-supplemented reactor, highlighting the stimulatory effect of NPs.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Miao Yan, Changrui Wang, Ying Li, Hailin Tian, Yongming Sun
Summary: Most anaerobic digestion reactors are operated under mesophilic and thermophilic conditions, but an optimized method for psychrotrophic anaerobic digestion (PAD) would have economic and environmental benefits as an alternative. This study investigated the conditions and mechanism to optimize PAD and found that intermittent bioaugmentation with mesophilic propionate-degrading consortia enhanced methane production. Metagenomic analysis revealed a higher cold tolerance of the bacterial community than methanogen community. Coupling reactor performance with microbial metabolic analysis, this study provides comprehensive findings for boosting the PAD process by intermittent bioaugmentation with methanogenic consortia.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Zhen Zhou, Qiang Ming, Ying An, Danian Ruan, Guang Chen, Haijuan Wei, Mengyu Wang, Zhichao Wu
Summary: The study found that in-situ microaeration can increase biogas production and VS removal rate of sludge through mechanisms such as stimulating hydrolytic enzyme activity, enlarging sludge particle size, and improving sludge dewaterability.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Microbiology
Simon Mills, Anna Christine Trego, Piet N. L. Lens, Umer Zeeshan Ijaz, Gavin Collins
Summary: This study investigated the microbial ecology of granule formation in high-rate, up-flow anaerobic bioreactors and proposed an ecological granulation model. By analyzing the microbial communities actively undergoing growth, breakage, and reformation within the granules, important ecological roles influencing granule formation and stability were identified, leading to the development of a stepwise ecological model for granulation.
MICROBIOLOGY SPECTRUM
(2021)
Article
Agricultural Engineering
Yonghua Xu, Xianghui Meng, Yunong Song, Xiaoyi Lv, Yong Sun
Summary: Investigating the effect of butyric acid concentration on anaerobic digestion systems in complex systems is crucial for efficient degradation of butyric acid and improving anaerobic digestion efficiency. In this study, different loadings of butyric acid were added to the anaerobic reactor, and at a high organic loading rate, efficient methane production was achieved with a volumetric biogas production of 1.50 L/(L center dot d) and biogas content between 65% and 75%. Metagenome sequencing revealed changes in the functional flora, indicating significant improvement in the methanogenic capacity of the system.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Zhongzhe Liu, Patrick McNamara, Daniel Zitomer
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2017)
Review
Green & Sustainable Science & Technology
Zhongzhe Liu, Simcha Singer, Yiran Tong, Lee Kimbell, Erik Anderson, Matthew Hughes, Daniel Zitomer, Patrick McNamara
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2018)
Article
Engineering, Environmental
Anthony D. Kappell, Lee K. Kimbell, Matthew D. Seib, Daniel E. Carey, Melinda J. Choi, Tino Kalayil, Masanori Fujimoto, Daniel H. Zitomer, Patrick J. McNamara
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2018)
Letter
Engineering, Environmental
Patrick McNamara, Daniel Zitomer, Zhongzhe Liu
RESOURCES CONSERVATION AND RECYCLING
(2019)
Article
Chemistry, Physical
Zhongzhe Liu, Simcha Singer, Daniel Zitomer, Patrick McNamara
Article
Microbiology
Prince P. Mathai, Hannah M. Dunn, Kaushik Venkiteshwaran, Daniel H. Zitomer, James S. Maki, Satoshi Ishii, Michael J. Sadowsky
ENVIRONMENTAL MICROBIOLOGY
(2019)
Article
Engineering, Environmental
Patrick Mullen, Kaushik Venkiteshwaran, Daniel H. Zitomer, Brooke K. Mayer
WATER ENVIRONMENT RESEARCH
(2019)
Letter
Engineering, Environmental
Patrick McNamara, Daniel Zitomer, Zhongzhe Liu
WATER ENVIRONMENT RESEARCH
(2019)
Article
Biotechnology & Applied Microbiology
Prince P. Mathai, Melinda S. Nicholes, Kaushik Venkiteshwaran, Clairessa M. Brown, Rachel L. Morris, Daniel H. Zitomer, James S. Maki
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2020)
Article
Green & Sustainable Science & Technology
Saba Seyedi, Kaushik Venkiteshwaran, Nicholas Benn, Daniel Zitomer
Review
Biotechnology & Applied Microbiology
Saba Seyedi, Kaushik Venkiteshwaran, Daniel Zitomer
Summary: Pyrolysis and hydrothermal liquefaction are potential technologies for renewable energy production using wastewater sewage sludge and lignocellulosic biomass. However, the organic-rich liquids produced are currently challenging to manage, and may be harmful to the environment. Integrating anaerobic digestion with thermochemical processes can promote a circular economy by recovering resources and reducing environmental pollution.
REVIEWS IN ENVIRONMENTAL SCIENCE AND BIO-TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Masanori Fujimoto, Daniel E. Carey, Daniel H. Zitomer, Patrick J. McNamara
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2019)
Article
Energy & Fuels
Saba Seyedi, Kaushik Venkiteshwaran, Daniel Zitomer
FRONTIERS IN ENERGY RESEARCH
(2019)
Article
Engineering, Environmental
Anthony D. Kappell, Daniel E. Carey, Daniel H. Zitomer, Patrick J. McNamara
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2020)
Article
Environmental Sciences
Nicholas Benn, Daniel Zitomer
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2018)
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)
