Article
Biotechnology & Applied Microbiology
Sutaryo Sutaryo, Aldila Nugrahaini Sempana, Rifo Martio Mulya, Dian Sulistyaningrum, Mochamad Sofyan Ali, Rafi Ihsa Damarjati, Endang Purbowati, Retno Adiwinarti, Agung Purnomoadi
Summary: This study investigated the co-digestion of Pistia stratiotes (PS) and dairy cow manure (DCM) and found that PS can be used as a co-substrate to increase methane production. Different parts of PS have varying effects on methane production, with the shoot system having the highest methane production. The post-digestion treatment of the digested slurries is also crucial for maximizing biogas yield.
FERMENTATION-BASEL
(2022)
Article
Green & Sustainable Science & Technology
Miao Chen, Shujun Liu, Xufeng Yuan, Qing X. Li, Fengzhong Wang, Fengjiao Xin, Boting Wen
Summary: This study found that digesters with high feed-to-inoculum ratios without biochar can lead to process failure, but the addition of biochar and/or co-digestion can improve digestion efficiency. Biogas and methane yields were significantly higher in digesters with biochar compared to those without. The maximum biogas and methane yields were achieved with specific feed-to-inoculum and waste to manure ratios, as well as biochar addition.
Article
Energy & Fuels
Xionghui Gao, Xiaoyu Tang, Kunyang Zhao, Venkatesh Balan, Qili Zhu
Summary: Utilization of spent mushroom substrate (SMS) as a sustainable substrate for biogas production can reduce dependence on fossil fuels and decrease greenhouse gas emissions. Combining SMS with chicken manure yields higher cumulative methane yield, with factors such as operational conditions and C/N ratio playing important roles in methane production.
Article
Biotechnology & Applied Microbiology
Shoji Ikeda, Masahito Yamauchi, Takahiro Watari, Masashi Hatamoto, Masayoshi Yamada, Shinya Maki, Hirofumi Hara, Takashi Yamaguchi
Summary: The study found that spent mushroom substrate-anaerobic digestion residue (SMS-ADR) can be used as a medium base material for Enokitake mushroom cultivation, showing potential for food production. SMS-ADR pretreated with KOH and NaOH performed well in mushroom cultivation, similar to the standard medium, while SMS not involved in the anaerobic digestion process showed inhibitory effects on mycelial growth for Enokitake mushrooms.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Environmental
Hyun Min Jang, Jeff Brady, Eunsung Kan
Summary: The addition of manure-derived biochar (MBC) can increase the cumulative methane yield and reduce the lag phase in anaerobic digestion (AD) of dairy manure. Microbial community analysis showed that adding MBC promoted the growth of Ruminofilibacter, syntrophic bacteria, and hydrogenotrophic methanogens. Additionally, the high electrical conductivity of MBC accelerated interspecies electron transfer in AD systems.
ENVIRONMENTAL ENGINEERING RESEARCH
(2021)
Article
Environmental Sciences
Chin-Hang Shu, Rajan Jaiswal, Mu-do Kuo, Bing-Hung Yu
Summary: The management of spent mushroom substrate has become a global environmental concern. This study evaluated the performance of a two-stage anaerobic co-digestion of spent mushroom substrate and chicken manure and found that it was more effective in methane and biogas production compared to single-stage anaerobic digestion.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Nunthaphan Vikromvarasiri, Mitsuhiko Koyama, Winarto Kurniawan, Nipon Pisutpaisal, Kiyohiko Nakasaki
Summary: The study found that intermittent substrate feeding can reduce the effects of intermediate volatile fatty acids, especially propionic acid and improve methane production. The microbial community changes suggested that Trichococcus is the key bacterium in glycerol degradation, while Delftia and Desulfuromonas may compete with methanogens. This study highlights the importance of microbial communities in methane production from glycerol.
Article
Agricultural Engineering
Muhammad Abid, Jing Wu, Mahdi Seyedsalehi, Yu-ying Hu, Guangliang Tian
Summary: This study demonstrates that high solid anaerobic digestion of cow manure can achieve a stable gas production process under appropriate conditions. As the solid content increases, the gas production rate decreases, but can still be maintained at a relatively high level. The abundances of relevant microbial communities also increase accordingly.
BIORESOURCE TECHNOLOGY
(2021)
Article
Microbiology
Wan-Rou Lin, Han-Yun Li, Lei-Chen Lin, Sung-Yuan Hsieh
Summary: This study investigated the dynamics of bacterial and fungal communities during commercial composting and the effect of swine and poultry manure on their communities. The addition of manure significantly affected the composition of bacterial communities, while temperature, nitrogen, and organic matter had a significant impact on fungal communities.
Article
Environmental Sciences
Diego C. Zied, Carlos G. de Abreu, Lucas da S. Alves, Evandro P. Prado, Arturo Pardo-Gimenez, Paulo C. de Melo, Eustaquio S. Dias
Summary: The study indicates that using fresh spent mushroom substrate (SMS) in the production of lettuce and arugula is feasible, with different optimal dosages recommended based on evaluated agronomic parameters.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Xiaona Wang, Weijie Guan, Xinxin Ma, Shuang Zhang, Qunhui Wang, Chuanfu Wu
Summary: The co-digestion of food waste and spent mushroom substrate under high temperature anaerobic conditions showed a positive synergistic effect on methane production, with the best results observed at a mixing ratio of 7:3. The co-digestion system exhibited higher hydrolysis rate constant and system stability compared to single fermentation.
WASTE AND BIOMASS VALORIZATION
(2022)
Article
Energy & Fuels
Jingjing Tong, Chuang Song, Mei Song, Maomao Yuan, Dexun Zou, Xinxin Li, Xusheng Zheng, Yanping Liu
Summary: The increase in recirculation batches can improve the yield of biogas slurry and methane in the digestion process of community solid waste, and reduce the accumulation of volatile fatty acids. The digestion process mainly produces methane through hydrogenotrophic methanogenesis and syntrophic acetic acid-oxidizing methanogenesis. The genera Methanobacterium and Methanomassiliicoccus are closely associated with the biogas production performance.
BIOENERGY RESEARCH
(2023)
Article
Environmental Sciences
Yilin Kong, Ruonan Ma, Guoxue Li, Guoying Wang, Yan Liu, Jing Yuan
Summary: This study found that adding biochar, calcium magnesium phosphate fertilizer, and spent mushroom substrate during pig manure composting can accelerate organic matter degradation and promote humification, increasing the humic acid content in compost. Different additives have different effects on heavy metal passivation, with spent mushroom substrate showing the best passivation performance for Cd, Cr, and Pb.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Plant Sciences
Qianqian Chen, Bo Liu, Jianmei Che, Guohong Liu, Huai Shi, Jieping Wang, Lulong Zhong
Summary: A continuous composting system was designed to increase the treatment capacity, and the composting parameters and bacterial community structure were evaluated. The results showed that nitrogen increased, while carbon, cellulose, and hemicellulose decreased during the composting process. The bacterial community structure varied among the composting cycles, and the C/N ratio and pH were identified as the main factors affecting the community structure. Bacteria participating in nitrogen cycles were found in the composting materials, and the abundance of denitrifying bacteria increased after the second composting cycle.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2022)
Article
Agronomy
Shengquan Zeng, Riley Harris, Eunsung Kan
Summary: This study investigated the effects of alfalfa-derived biochar (AF-BC) on anaerobic digestion (AD) of dairy manure. The results showed that the addition of AF-BC in appropriate amounts significantly increased biogas and methane yields, reduced COD and CO2 content, and improved AD performance. However, excessive addition of AF-BC may have toxic effects on AD microorganisms.
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)