Review
Energy & Fuels
Yapeng Song, Wei Qiao, Jiahao Zhang, Renjie Dong
Summary: Anaerobic digestion of chicken manure is hindered by the high nitrogen content, inhibiting methane production. This review provides new insights into maintaining methanogens' activities, the decomposition of acetate, and the dynamics of methanogenic pathways under high ammonia stress. Possible strategies for alleviating ammonia inhibition effects are also analyzed, including supplementation of trace elements, co-digestion with nitrogen-less materials, in-situ ammonia removal, and long-term adaptation of anaerobic consortia to ammonia stress. The findings of this study may contribute to a better understanding of anaerobic digestion technology for chicken manure and other nitrogen-rich waste and wastewater.
Article
Thermodynamics
Tianjie Ao, Lin Chen, Yichao Chen, Xiaofeng Liu, Liping Wan, Dong Li
Summary: Under high organic loading rate conditions, anaerobic digestion of chicken manure at high temperature is prone to instability due to dual suppression of free volatile fatty acids and free ammonia, as well as degradation of isobutyrate. The ratio of n-butyrate to iso-butyrate can serve as an early warning indicator for stability.
Article
Environmental Sciences
Le Liu, Cheng Li, Haixiao Li
Summary: Industrial-scale aerobic fermentation was conducted using livestock manures, and microbial inoculation promoted the growth of Bacillaceae as the dominant microorganism. It substantially influenced the derivation and variations of dissolved organic matter (DOM) and increased the relative abundance of humic acid-like substances, resulting in a high humification level. Lignocellulose degradation and microbial utilization were important factors in determining DOM content, and microbial inoculation played a crucial role in regulating the fermentation system and achieving a high level of fermentation maturity.
Article
Engineering, Environmental
Tatiana Minkina, Svetlana Sushkova, Yanina Delegan, Anzhelika Bren, Maria Mazanko, Yulia Kocharovskaya, Andrey Filonov, Vishnu D. Rajput, Saglara Mandzhieva, Dmitry Rudoy, Evgeniya V. Prazdnova, Vereshak Elena, Galina Zelenkova, Anuj Ranjan
Summary: The present study investigates the effect of chicken droppings manure (CDM) on the diversity of the soil microbiome and reveals that CDM significantly improves the soil microbial diversity.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2022)
Article
Ecology
Qiang Lin, Lingjuan Li, Jo De Vrieze, Chaonan Li, Xiaoyu Fang, Xiangzhen Li
Summary: A major challenge in microbial community management and engineering is predicting and explaining microbial community responses to environmental alterations, particularly in microorganism-driven systems. By monitoring microbial community responses to the periodic addition of the same feedstock in anaerobic digestion, we found that immediate and delayed response consortia increased significantly in abundance on the first or third day after feedstock addition. The immediate response consortia were more predictable and showed reproducible composition across different feedstocks, which was validated by simulation modeling.
Article
Multidisciplinary Sciences
Tien Ngo, Leadin S. Khudur, Christian Krohn, Soulayma Hassan, Kraiwut Jansriphibul, Ibrahim Gbolahan Hakeem, Kalpit Shah, Aravind Surapaneni, Andrew S. Ball
Summary: This study investigated the effects of adding wood biochar on the anaerobic digestion of chicken manure under conditions of ammonia inhibition. The results showed that adding 5% acid-alkali-treated wood biochar by volume could achieve methane production levels close to the typical range of chicken manure. The treated wood biochar also exhibited the highest removal of total ammonia nitrogen compared to the control treatment. Microscopic observations and molecular biology analysis revealed the mechanisms by which acid-alkali-treated wood biochar improved anaerobic digestion performance.
Article
Agricultural Engineering
Yinchao Li, Jun Ma, Xiaoyu Yong, Liwen Luo, Jonathan W. C. Wong, Yabing Zhang, Hao Wu, Jun Zhou
Summary: The study demonstrated that the addition of biochar can significantly reduce the levels of ammonia, hydrogen sulfide, and volatile organic compounds in poultry manure compost, while also decreasing the nitrogen loss rate and promoting organic matter decomposition. The application of biochar can also improve the microbial composition and enhance the activity of certain nitrogen-cycling microorganisms.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Ying Li, Changrui Wang, Xinrui Xu, Yongming Sun, Tao Xing
Summary: Introducing propionate-degrading methanogenic cultures can enhance methane yield in anaerobic digesters under high ammonia levels, improving the performance of anaerobic digestion.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Satja Aksorn, Vorapot Kanokkantapong, Chongrak Polprasert, Pongsak (Lek) Noophan, Samir Kumar Khanal, Sumeth Wongkiew
Summary: The study showed that under Cu and Zn supplemented bioponics, pak choi had higher bioconcentration factors for Cu and Zn compared to lettuce, and the root microbial community was significantly affected. However, according to the health risk assessment by the US EPA, consumption of bioponic vegetables containing Cu and Zn does not pose long-term health risks for children or adults.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Zhiming Xu, Ronghua Li, Tao Liu, Guanghui Zhang, Shenghui Wu, Kaili Xu, Yingbing Zhang, Quan Wang, Jian Kang, Zengqiang Zhang, Fusheng Quan, Yong Zhang
Summary: This study found that inoculating cattle manure compost with newly isolated ammonia-oxidizing bacteria can significantly reduce ammonia emissions, accelerate the conversion of ammonium nitrogen, and increase the abundance of microbial communities. In particular, the inoculation of mixed strains can increase the total nitrogen content of compost, prolong the sanitation stage, and promote compost maturity.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Agricultural Engineering
Shunan Zhao, Wenhan Chen, Wendan Luo, Hongli Fang, Huanyu Lv, Rutao Liu, Qigui Niu
Summary: The study investigated the synergistic effect and microbial changes during anaerobic co-digestion of chicken manure and cardboard. Results showed increased methane production and enhancement of acidogenesis and hydrolase activity. Microbial analysis revealed higher acetoclastic Methanosaeta abundance and a network analysis demonstrated methane production through the matching of hydrolytic and acidogenesis bacteria. Energy balance was improved by 38% with an energy recovery rate of 46.4% through the synergistic effect.
BIORESOURCE TECHNOLOGY
(2021)
Review
Energy & Fuels
Tien Ngo, Esmaeil Shahsavari, Kalpit Shah, Aravind Surapaneni, Andrew S. Ball
Summary: There is increasing interest in using anaerobic digestion to treat organic waste and generate renewable energy. Livestock manure is the largest source of organic waste in most countries, but its high protein content poses challenges for anaerobic digestion. Various methods, including the addition of biochar, have been used to mitigate ammonia stress.
Article
Agricultural Engineering
Yuwen Zhou, Mayur B. Kurade, Ranjna Sirohi, Zengqiang Zhang, Raveendran Sindhu, Parameswaran Binod, Byong-Hun Jeon, Asad Syed, Meenakshi Verma, Mukesh Kumar Awasthi
Summary: The aim of this study was to investigate the impact of two types of biochar on composting of hen manure and wheat straw. Coconut shell and bamboo biochar were used as additives to reduce antibiotic resistant bacteria in the compost. The results showed that biochar amendment significantly reduced the presence of antibiotic resistant bacteria. Microbial activity and abundance were increased in the biochar applied treatments, and the bacterial community composition changed. Network analysis indicated that biochar amendment increased the quantity of microorganisms involved in organic matter degradation. Coconut shell biochar played a key role in mitigating antibiotic resistant bacteria and improving composting effects. Structural correlation analysis revealed that coconut shell biochar reduced the mobility of antibiotic resistant bacteria and promoted organic matter degradation by improving the structure of beneficial bacterial communities. Overall, composting with biochar amendment stimulated the dynamics of antibiotic resistant bacteria. These findings have practical value for scientific research and can serve as a foundation for promoting composting in agriculture.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agronomy
Zhenping Hou, Xia Zheng, Xuelei Zhang, Li Yan, Qing Chen, Duanqin Wu
Summary: This study investigated the effects of different levels of added sucrose on the fermentation quality and microbial community of kudzu silage. The results showed that sucrose supplementation improved the quality of silage by reducing pH levels, fiber content, and ammonia nitrogen, and increasing the relative abundance of beneficial microbial communities.
Article
Agricultural Engineering
Guang Yang, Jianlong Wang
Summary: The study investigated the co-fermentation of antibiotic fermentation residue (AFR) and fallen leaves to enhance biohydrogen production. Results showed that the optimal mixing ratio of AFR to leaves was 25:75, which significantly increased hydrogen yield. Co-fermentation promoted microbial activity, enriched hydrogen-producing bacteria, and enhanced the expression of hydrogen-producing functional genes, fundamentally responsible for synergistic biohydrogen fermentation.
BIORESOURCE TECHNOLOGY
(2021)
Article
Ecology
Jialing Ni, Shingo Hatori, Yin Wang, Yu-You Li, Kengo Kubota
Article
Environmental Sciences
Yan Guo, Qigui Niu, Takumi Sugano, Yu-You Li
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Biochemistry & Molecular Biology
Xiangxiang Li, Mengling Huo, Lining Zhao, Zhaozhen Cao, Mengchen Xu, Jingqiang Wan, Qigui Niu, Chenqian Huo, Jingchun Tang, Rutao Liu
Summary: While most studies focus on the biological effects of UFPs on lung cells and tissues, our research explored the negative impact of UFCB on the structure and function of trypsin. We found significant changes in the enzyme's aromatic amino acid microenvironment, protein backbone, secondary structure, and enzyme activity after exposure to UFCB, indicating potential harm to animals and humans.
JOURNAL OF MOLECULAR RECOGNITION
(2021)
Article
Engineering, Chemical
Chunyan Wang, Hanyang Wu, Jiang Wu, Bin Zhu, Wenli Fan, Tingjie Lu, Yingxin Gao, Weikang Qi, Qigui Niu
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2020)
Article
Environmental Sciences
Mingyang Jing, Guangye Han, Jingqiang Wan, Shansheng Zhang, Junhai Yang, WanSong Zong, Qigui Niu, Rutao Liu
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Agricultural Engineering
Shunan Zhao, Wenhan Chen, Wendan Luo, Hongli Fang, Huanyu Lv, Rutao Liu, Qigui Niu
Summary: The study investigated the synergistic effect and microbial changes during anaerobic co-digestion of chicken manure and cardboard. Results showed increased methane production and enhancement of acidogenesis and hydrolase activity. Microbial analysis revealed higher acetoclastic Methanosaeta abundance and a network analysis demonstrated methane production through the matching of hydrolytic and acidogenesis bacteria. Energy balance was improved by 38% with an energy recovery rate of 46.4% through the synergistic effect.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Yasuyuki Takemura, Yuji Sekiguchi, Kazuaki Syutsubo, Hideki Harada, Tatsuo Omura, Yu-You Li, Kengo Kubota
Summary: The SCOPE method utilizes sequence-specific capture of oligonucleotide probes to detect and quantify microbial rRNA with high accuracy, sensitivity, and multiplexing capability, making it a valuable tool for environmental microbial population analysis.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Takashi Onodera, Yasuyuki Takemura, Kengo Kubota, Rina Kato, Tsutomu Okubo, Gen Kanaya, Kazuaki Syutsubo, Shigeki Uemura
Summary: This study evaluated the characteristics of sludge in biological wastewater treatment systems using various methods, revealing succession and trophic transfer within bacterial and eukaryotic communities. Isotopic analysis showed a significant increase in nitrogen stable isotope ratio over time in sponge units, indicating changes in the biological processes occurring during wastewater treatment.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Yan Guo, Chenglei Xie, Yujie Chen, Kampachiro Urasaki, Yu Qin, Kengo Kubota, Yu-You Li
Summary: The application of granule sludge in a one-stage partial nitritation/anammox (PNA) reactor achieved high nitrogen removal rate in low-strength ammonium wastewater (LSAWW) treatment. Addition of hydroxyapatite (HAP) increased the density of granules, improved settlability of sludge and made high biomass achievable in a short HRT.
Article
Environmental Sciences
Yongsen Shi, Hongli Fang, Yu-You Li, Hanyang Wu, Rutao Liu, Qigui Niu
Summary: Moderate levels of NaCl or Nap can enhance the acidogenesis and methanogenesis in anaerobic digestion, but high salinity weakens the microbial activity. The combination of high salinity and Nap leads to reduced microbial enzyme activity, poor EPS secretion, and inhibition of AD process.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
Yongsen Shi, Manli Liu, Jingyi Li, Yilin Yao, Jingchun Tang, Qigui Niu
Summary: The study found that moderate application of biochar can alleviate the bio-toxicity suppression of oily sludge, improving methane fermentation efficiency and enhancing mesophilic digestion performance through the promotion of interspecies electron transfer among microorganisms.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Lan Lin, Zibin Luo, Kyuto Ishida, Kampachiro Urasaki, Kengo Kubota, Yu-You Li
Summary: In this study, the start-up period of the anammox process was investigated using nitrification-denitrification sludge, and a successful start-up was achieved. The results showed high efficiency in nitrogen removal and significant improvements in granule properties, indicating the feasibility and importance of the anammox process for large-scale applications and sludge utilization.
Article
Microbiology
Kyohei Kuroda, Kyosuke Yamamoto, Ryosuke Nakai, Yuga Hirakata, Kengo Kubota, Masaru K. Nobu, Takashi Narihiro
Summary: Ca. Patescibacteria is a highly diverse group of bacteria that has symbiotic or parasitic relationships with other bacteria or even eukarya. By amending wastewater treatment sludge samples, researchers discovered a novel cross-domain parasitic interaction between Ca. Patescibacteria and an isolate archaeon closely related to a methanogen population. This finding sheds light on the potential strategies for culturing Ca. Patescibacteria and highlights the importance of cross-domain symbiosis.
Article
Agricultural Engineering
Jialing Ni, Jiayuan Ji, Yu-You Li, Kengo Kubota
Summary: An anaerobic membrane bioreactor (AnMBR) was used to treat domestic sewage at 15 degrees C under different hydraulic retention time (HRT) conditions (6, 12, 16, and 24 h). The viability of microbial community in anaerobic digestion was assessed using Propidium monoazide (PMA)-PCR, which targeted microorganisms with intact cell membranes. The study found that a 6-hour HRT resulted in poor treatment performance, with low chemical oxygen demand removal efficiency and high mean trans-membrane pressure and flux. PMA-PCR combined with next-generation sequencing provided better identification of microbial changes compared to conventional 16S rRNA gene sequencing.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yilin Yao, Yanhao Wei, Jingyi Li, Ruotong Han, Chuanyong Jing, Rutao Liu, Qigui Niu
Summary: Regulating microbial electron flow (MEF) by adding electron acceptor NO3- can promote the biodegradation of organic pollutants such as naphthalene. The study also discovered a strain capable of simultaneous naphthalene biodegradation and denitrification.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Xiaojian Liu, Bei Wang, Yayun Ma, Xiangyang Zhou, Juan Yang, Yuehui He, Jingjing Tang, Fanyun Su, Wan Yang
Summary: This study proposes a combined process of reduction roasting of herb-medicine residue and oxalic acid leaching to improve the recovery efficiency of lithium from spent lithium-ion batteries. By utilizing the reducing gas produced from the pyrolysis of herb-medicine residue, the layered structure of the cathode powder is destroyed and converted into Li2CO3, Ni, Co, and MnO. Additionally, selective extraction of lithium is achieved using oxalic acid, and the efficiency and kinetics of lithium extraction are improved under the combined action of herb-medicine residue and oxalic acid.
Article
Engineering, Environmental
Muxina Konarova, Nuno Batalha, Gabriel Fraga, Mohamed H. M. Ahmed, Steven Pratt, Bronwyn Laycock
Summary: This study presents a proof of concept for a technology that integrates PET recovery from mixed plastic waste and plastic pyrolysis. By depolymerizing PET into TPA using a low volatility oil as medium, it achieves low-pressure operation and a selective separation and recovery of TPA from the product mix. Full PET conversion and high TPA recovery were achieved, making it an effective solution for processing mixed waste streams and improving the yield and quality of liquid product from thermal pyrolysis compared to untreated feedstock.
Article
Engineering, Environmental
Zhenhua Sun, Jing Li, Xuejiang Wang, Siqing Xia, Jianfu Zhao
Summary: This study investigated the influence of in-situ formed MgFe2O4 on the hydrothermal treatment of swine manure. The results showed that the in-situ formation of MgFe2O4 improved the dehydration and decarboxylation of organic components in swine manure, thereby improving its carbonization degree. Furthermore, it enhanced the stabilization of heavy metals and the retention of phosphorus. MgFe2O4 modified hydrochars exhibited remarkable adsorption capacity for Pb(II) and Cu(II) without any leaching of heavy metals.
Article
Engineering, Environmental
Yijing Jiang, Boyang Leng, Jingxin Xi
Summary: The increased generation of municipal solid waste has had a significant impact on the economy, environment, and public health. The current waste treatment process has limitations. By developing a comprehensive social costing model, this study assesses the impacts of municipal solid waste management throughout its life cycle and provides policymakers with best practices and feasibility information.
Article
Engineering, Environmental
Marina Hernandes de Paula e Silva, Ricardo Coser Mergulha, Jose Geraldo Vidal Vieira, Andrea Brasco Pampanelli, Rodrigo Salvador, Diogo Aparecido Lopes Silva
Summary: This study developed and implemented a self-assessment tool to assist companies in decision-making processes for establishing circular flows based on Lean Manufacturing and Circular Economy principles. The tool utilized a maturity model and was applied to nine companies of varying characteristics. The findings revealed that certain companies showed higher maturity in water-waste and chemical-emissions management, with larger enterprises focusing on these strategies. However, many companies lacked sufficient training and employee awareness prior to seeking cleaner alternatives, and comprehensive actions to manage the product lifecycle were lacking. To address these gaps, the tool provided tailored recommendations for each company to improve their processes, products, and value chain.
Article
Engineering, Environmental
Gamze Dogdu, Turgay Pekdemir, Sanaz Lakestani, Seyda Karabork, Osman Cavus
Summary: This paper presents data on food waste associated with mini size food packaging services, highlighting the difficulties in emptying the food and consumer wastefulness as the main causes. These findings have significant implications for the sustainability of food and relevant packaging.
Article
Engineering, Environmental
Qingxia Li, Xin Kong, Yuxin Chen, Jianan Niu, Jia Jing, Jin Yuan, Yifeng Zhang
Summary: This study investigates how to enhance methane production from food waste after hydrothermal pretreatment. The results demonstrate a significant increase in methane yield when zero-valent iron and magnetite are used together, and high organic loading is favorable for methane production. Microbial diversity analysis further reveals the dominant pathways and metabolic processes involved in methane generation.
Article
Engineering, Environmental
D. H. H. Sim, I. A. W. Tan, L. L. P. Lim, E. T. Lau, B. H. Hameed
Summary: The development of controlled-release fertilizer formulation is important for preventing environmental pollution caused by nutrient leaching and volatilization. This study combined biochar-based fertilizer with encapsulation technology to improve the nutrient release mechanism. Optimal conditions for synthesizing urea-impregnated biochar (UIB) were determined using central composite design, and the release of nitrogen was described by mathematical models. Results showed that encapsulated UIB (EUIB) achieved complete release of nitrogen in water and exhibited improved water retention in sandy-textural soil. Therefore, EUIB derived from peppercorn waste has the potential to be used as a sustainable controlled-release fertilizer for agriculture.
Article
Engineering, Environmental
Yuchuan Wang, Neslihan Akdeniz
Summary: Incorporating biochar into composting systems can increase compost temperatures. This study developed a heat transfer model for a biochar-amended co-composting system and found that biochar increased thermal conductive losses but also enhanced microbial activity, resulting in an overall increase in total heat unit. When biochar was applied on the surface, it mainly functioned as an insulator.
Article
Engineering, Environmental
George Tsalis, Birger Boutrup Jensen, Jessica Aschemann-Witzel
Summary: This paper empirically explores the relationship between retail price promotions and household food waste. The results show that households with a higher proportion of discount food purchases and environmental awareness tend to waste less food, while larger households and those lacking food handling skills tend to waste more food.
Article
Engineering, Environmental
Lukas Friederici, Arne Koch, Patrick Martens, Jana Pantzke, Sebastiano Di Bucchianico, Thorsten Streibel, Christopher P. Rueger, Ralf Zimmermann
Summary: The increasing demand for lightweight materials has led to a rise in fiber-reinforced plastic (FRP) production. However, the properties and compositional range of FRPs pose challenges to recycling strategies. Pyrolysis has emerged as a promising method for separating the fibers from the polymer matrix. This study investigated the pyrolysis process using thermal analysis and high-resolution mass spectrometry, and also assessed the toxicity of the recovered fibers using an in vitro model.
Review
Engineering, Environmental
Devika Kannan, Shakiba Khademolqorani, Nassibeh Janatyan, Somaieh Alavi
Summary: This paper introduces Smart Waste Management (SWM) that applies Industry 4.0 technologies in waste management. A framework called SWM4.0 is developed, which highlights the importance of smart people, smart cities, smart enterprises, and smart factories in achieving successful waste management. The paper also suggests future research directions and managerial implications.
