Article
Green & Sustainable Science & Technology
A. A. Ajayi-Banji, S. Sunoj, C. Igathinathane, S. Rahman
Summary: Long lag phase and reactor instability pose challenges for describing and predicting methane yield in upset solid-state anaerobic digestion. Seven kinetic models were used for treatment evaluation, with different models best describing methane yield for different treatments. Predicting optimal hydraulic retention time for the least inhibited treatment can aid in reactor design and methane yield simulation.
Article
Green & Sustainable Science & Technology
Yao Lu, Liang Zhang, Xiaoyu Zuo, Beibei Yan, Xiujin Li, Hairong Yuan
Summary: This study investigated the depolymerization products, biomethane production, and microbial community of corn stover depolymerized with urea using a hydrothermal approach. The addition of urea facilitated the breakage of the ester bonds in lignocellulose structure, increasing the levels of volatile fatty acids and phenol. Depolymerization with 2% urea and 10 min of hydrothermal time produced higher cumulative biomethane yield. The combined depolymerization enhanced the acetate-methane pathway by promoting the growth of specific microbial species, resulting in increased biomethane production.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Polymer Science
Yao Lu, Hairong Yuan, Xiaoyu Zuo, Yanqing Chang, Xiujin Li
Summary: This study focuses on improving the biodegradability of corn stover (CS) for anaerobic digestion (AD). By combining urea with mild temperature hydrotherm pretreatment, researchers found that the pretreatment significantly increased biomethane yield and volatile solid removal rates. Furthermore, altering the microstructure of CS through pretreatment had a positive impact on the microbial community.
Article
Thermodynamics
Hao Sha, Bo Zhao, Yuyi Yang, Yanhui Zhang, Pengfei Zheng, Shengxian Cao, Qing Wang, Gong Wang
Summary: The combination of magnetized cellulase and Ni-graphite coated materials significantly increased CH4 yield and influenced microbial community composition when treating corn stover. Carbon balance calculations showed that the combination treatment resulted in higher energy conversion efficiency.
Article
Environmental Sciences
Ruikun Wang, Pingbo Peng, Gaoke Song, Zhenghui Zhao, Qianqian Yin
Summary: Hydrothermal carbonation is an effective method to enhance the fuel quality of biomass, but generates large amounts of wastewater. In this study, the wastewater was converted into methane through anaerobic digestion. The use of modified hydrochar improved methane production and COD removal rate, while also reducing the instability of the AD system.
ENVIRONMENTAL POLLUTION
(2022)
Article
Energy & Fuels
Md Mosleh Uddin, Zhiyou Wen, Mark Mba Wright
Summary: This study comprehensively analyzes the economic and environmental impacts of using biochar in anaerobic digestion technology. The research shows that biochar addition can significantly reduce the selling price of renewable natural gas and decrease greenhouse gas emissions.
Article
Energy & Fuels
Zhi Wang, Ying Guo, Weiwei Wang, Liumeng Chen, Yongming Sun, Tao Xing, Xiaoying Kong
Summary: Anaerobic digestion of corn straw faces challenges such as slow degradation, long fermentation time, and acid accumulation. Treating corn straw with sodium hydroxide and adding biochar under thermophilic anaerobic conditions can enhance methane production, reduce production fluctuations, shorten startup time, and increase the abundance of beneficial bacteria and archaea.
Article
Agronomy
Xiaohong Su, Jingbo Qu, Yan Huang, Wei Liu, Yong Sun
Summary: Reflux of biogas slurry is an effective way to reduce wastewater discharge. This study investigated the pretreatment of biogas slurry using microfiltration membrane and biochar adsorption. The results showed that the combination of 0.65 μm microfiltration and 7 g/L biochar had the best filtration and adsorption effects. The anaerobic co-digestion of the pretreated reflux fluid and corn stover resulted in advanced gas production and higher methane production.
Article
Agricultural Engineering
Yan Li, Dongliang Hua, Haipeng Xu, Yuxiao Zhao, Fuqiang Jin, Xu Fang
Summary: The study demonstrates that pretreatment of lignocellulosic materials with organic acids can enhance the production of volatile fatty acids (VFAs), but can also inhibit microbial metabolism when the concentration exceeds a certain limit. The type of organic acids affects the metabolic pathway of VFAs, and hydrothermal-organic acid pretreatment can provide crucial information, especially when considering organic loading rates.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Agricultural Engineering
Xiaodong Chu, Qiushuang Cheng, Yonghua Xu, Lina Luo, Ming Wang, Guoxiang Zheng, Hongqiong Zhang, Weiming Yi, Xiaofeng Liu, Yongming Sun, Yong Sun
Summary: The ultrasonic-aerobic hydrolysis pretreatment of corn straw can significantly increase methane production, which is of great significance to biogas engineering.
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
Shuaishuai Ma, Longrui Li, Xiurong Ren, Wanbin Zhu, Hongliang Wang
Summary: This study proposes an innovative method using CO2 and ALD as pretreatment reagents for corn stover in biomethane production. The results show that CO2-ALD pretreatment significantly increases biomethane yield and disrupts the structure of lignocellulose.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Agricultural Engineering
Haiquan Dong, Liangchen Yue, Jun Cheng, Rongxin Xia, Junhu Zhou
Summary: Microbial electro-chemical degradation was proposed to enhance methane production from lipids in anaerobic digestion. Applying a voltage strengthened the beta-oxidation of lipids, promoting electron transfer and methane yield. The overall energy conversion efficiency in methane production increased due to microbial electrochemical degradation of lipids.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Yuanfang Deng, Jun Xia, Rui Zhao, Xiaoyan Liu, Jiaxing Xu
Summary: The application of iron-modified biochar in high organic loading co-digestion promoted methane production, enhanced buffering capacity, and enriched specific microbial populations. Additionally, the addition of iron-modified biochar accelerated substrate hydrolysis and volatile fatty acids consumption.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Zuopeng Lv, Pingli Lyu, Kunyao Li, Fuyu Song, Zhen Zhang, Ying Yang, Haiying Yu
Summary: This research reveals the impact of high temperature shock on microbial diversity and network traits in anaerobic digestion process. It shows that the rise in temperature reduces biogas production and network modularity, resulting in a loss of system functioning. The stability of methanogenic process is also disrupted by high temperature shock.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Computer Science, Information Systems
Mengyao Zhang, Liwei Lin, Zhuyun Chen
Summary: This research investigates the structure of a dynamic data management system using blockchain model in E-commerce and proposes a lightweight security scheme for better data management. The experiment shows that the system has better overall performance.
CLUSTER COMPUTING-THE JOURNAL OF NETWORKS SOFTWARE TOOLS AND APPLICATIONS
(2023)
Article
Chemistry, Applied
Yong Zhang, Hao Li, Zhijian Xu, Yulong Shi, Bo Li, Jia Li, Haji Akber Aisa, Yi Zang, Weiliang Zhu
Summary: Three new feruloyl glucuronopyranosyl glycerols were isolated from Eriocaulon buergerianum Koern and identified as potential inhibitors of TGF-beta 1 receptor. Among them, one glycerol (1) exhibited strong inhibitory activity against TGF-beta-induced protein expression in human hepatic stellate LX-2 cells. These findings suggest that the new feruloyl glucuronopyranosyl glycerol 1 has preventive and therapeutic potentials against hepatic fibrosis.
NATURAL PRODUCT RESEARCH
(2023)
Article
Materials Science, Textiles
Qilu Cui, Jiawei Li, Chongwen Yu
Summary: In this study, the extraction and purification of total flavonoids from hemp fiber extracts were investigated using ethyl acetate and three different resins. The results showed that the HPD-500 resin was suitable for purification, with a purity of 8.36% flavonoids obtained. The chemical structure of the flavonoid extracts contained C=C, C-H, C-O, and rutin derivatives. Additionally, the flavonoid extracts enhanced the UV-visible light shielding effect of polyvinyl alcohol (PVA) and exhibited good antioxidant and antibacterial activities.
TEXTILE RESEARCH JOURNAL
(2023)
Article
Materials Science, Ceramics
Jian Zhang, Yuefeng Ma, Jiale Huang, Haoyu Zeng, Zihao Liu, Tengfei Hua, Jiaping Liu, Zhangli Hu
Summary: This study investigates the mechanism of a novel shrinkage-reducing polycarboxylate superplasticizer (SR-PCA) in cementitious materials. The results show that SR-PCA has a mild impact on C-S-H crystallinity and significantly improves the pore structure of C-S-H.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Polymer Science
Ji Jia, Jiali Li, Si Ma, Zhenwei Zhang, Xiaoming Liu
Summary: In this study, a new covalent organic framework material, COF-JLU82, is designed and synthesized. It exhibits good electrocatalytic activity for the oxygen reduction reaction (ORR), with better performance compared to the previously reported COF-JLU23. This study enriches the types of COF-based ORR electrocatalysts and promotes the development of more highly efficient metal-free ORR electrocatalysts.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Engineering, Biomedical
Ruiyu Bi, Yunlong Zhao, Yuhang Ma, Xiaolong Zhu, Jiawei Li, Bin Wu, Junbin Zang, Jiuzhang Men, Zhidong Zhang, Chenyang Xue
Summary: Pulse position standardization is crucial for the digitization of pulse diagnosis in traditional Chinese medicine. This study presents a pulse wave detection method and pulse position determination method based on gradient pressure. The relationship between the depth of the radial artery and the optimal pulse-taking pressure is discussed. The study proposes criteria for defining pulse position and provides a calculation method. Experimental results validate the feasibility and accuracy of pulse position definition.
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
(2023)
Article
Agricultural Engineering
Jiawei Li, Amjad Ali, Junfeng Su, Tinglin Huang, Zhenyu Zhai, Liang Xu
Summary: This study focused on optimizing the nitrate removal rate under a low carbon-to-nitrogen ratio using a biofilm reactor based on functional carrier and the synergistic effect of strains. Iron-loaded corn cob was used as the functional carrier, promoting cellulose degradation, iron cycling, and collaborative denitrification. The results showed that strain ZY7 promoted the release of carbon source, and the crystallinity of cellulose in the carrier increased significantly. The microbial community exhibited synergistic effects among different strains, enhancing the vitality and metabolic activity of the target microorganisms through interspecific bacterial cooperation.
BIORESOURCE TECHNOLOGY
(2023)
Article
Automation & Control Systems
Daicheng Qin, Junwei Wu, Jiawei Li, Yuncan Ma, Minheng Ye, Dong Tian, Chao Wang, Fang Ji
Summary: Magnesium aluminate spinel materials are widely used as important optical components in harsh environments. However, the high hardness and brittleness of these materials pose challenges in machining and polishing processes. We propose a new method using femtosecond laser-surface-modification assisted MRF to improve the efficiency and quality of spinel MRF, while suppressing the grain effect.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Thermodynamics
Wei Chen, Yingying Wang, Dengjia Wang, Yanfeng Liu, Jiaping Liu
Summary: A novel method based on fractal theory combined with thermoelectric analogy is proposed to accurately predict the effective thermal conductivity of porous building materials. The prediction model outperforms traditional theoretical models and provides a feasible method for obtaining the effective thermal conductivity, which can contribute to understanding the thermal insulation performance and energy conservation of buildings.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Jiayu Liu, Jiaxing Zhang, Liwei Zhang, Yuefei Wang, Hao Wei, Yuhe Shen, Jiwei Min, Xi Rong, Wei Qi, Rongxin Su, Zhimin He
Summary: This study reports the coordination assembly of ferrocene-diphenylalanine (Fc-FF) with divalent copper ions (Cu2+), resulting in the formation of metal-peptide assemblies (MPAs) with hierarchical spiral architectures. The MPAs consist of helically organized nanofibers that resemble logarithmic spirals. These MPAs exhibit hierarchically porous structures with abundant Fc and Cu2+ active sites, displaying significantly higher catalytic activity than natural laccase in decolorization reactions. Furthermore, the temperature and enantiomeric excess (ee) can be controlled to synthesize a series of hierarchical structures for MPAs. Peptide enantiomers with higher ee values self-assemble into highly complex and ordered structures, which exhibit higher surface area and porosity and thus enhanced catalytic activity compared to those assembled by peptides with lower ee values. These findings provide new insights into the crucial role of chirality in directing the self-assembly of biomolecules into highly ordered complex functional structures.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Environmental Sciences
Xiao Lu, Hongwei Hu, Jiawei Li, Jiangpeng Li, Lijuan Wang, Lili Liu, Yuanyuan Tang
Summary: Through a series of experiments, this study found that the presence of microplastics in sediment can enhance the adsorption capacity of ferrihydrite minerals, particularly for lead with an increase of 36%. The microplastics can also alter the dispersion and surface properties of minerals, thereby affecting the accumulation and transportation of heavy metals at the water-sediment interface.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Robotics
Yuchen Wu, David J. J. Yoon, Keenan Burnett, Soeren Kammel, Yi Chen, Heethesh Vhavle, Timothy D. D. Barfoot
Summary: In this letter, we present a continuous-time lidar-only odometry algorithm that utilizes Doppler velocity measurements from an FMCW lidar to improve performance in geometrically degenerate environments. By applying a continuous-time framework, we accurately estimate the vehicle trajectory and compensate for motion distortion caused by mechanically actuated lidars. Our proposed algorithm outperforms existing methods and demonstrates state-of-the-art performance in both difficult conditions and nominal conditions.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2023)
Article
Environmental Sciences
Wenxuan Fan, Jie Li, Zhiwei Han, Jian Wu, Shuang Zhang, Chuwei Zhang, Jiawei Li
Summary: This study investigated the impact of biomass burning in Southeast Asia on particulate matter concentrations and aerosol properties in downwind areas. A pollution event in Kunming, China on March 31 to April 1, 2019, caused by BB pollutants from Southeast Asia and the India-Myanmar trough, showed significant increases in PM2.5, PM1, and black carbon concentrations. The dominant contributor of BB in Yunnan Province was found to be the Myanmar-Thailand border.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Computer Science, Artificial Intelligence
Xiang Shi, Yinpeng Liu, Jiawei Liu, Qikai Cheng, Wei Lu
Summary: Scientific papers are crucial for academic communication, but many of them lack in-depth research and present core content ambiguously, hindering the progression of science and technology. To address this challenge, the INTEGrity vERification (INTEGER) task is introduced to help researchers assess the integrity of their papers and verify the clarity of each knowledge unit. A multi-task learning model utilizing Tucker decomposition and span-level attention mechanism is proposed to accurately identify terms and their integrity. Experimental results show the effectiveness of the model.
EXPERT SYSTEMS WITH APPLICATIONS
(2024)
Article
Mathematics, Applied
Yajie Wang, Jianwei Yang
Summary: This article deals with the low Mach number limit of the compressible Euler-Korteweg equations. It is rigorously justified that solutions of the compressible Euler-Korteweg equations converge to those of the incompressible Euler equations as the Mach number tends to zero. Furthermore, the desired convergence rates are also obtained.
APPLICATIONS OF MATHEMATICS
(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)
