Article
Chemistry, Physical
Shentan Liu, Hongpu Xue, Mixue Wang, Xiaojuan Feng, Hyung-Sool Lee
Summary: This study evaluates the use of constructed wetland-microbial fuel cells (CW-MFC) as a sustainable solution for reducing greenhouse gas (GHG) emissions. The results show that carbon fiber felt (CFF) exhibits the lowest methane and nitrous oxide emissions among the selected cathode materials. Adjusting the influent pH from acidic to alkaline also reduces GHG emissions. However, the addition of nickel inhibits GHG emissions but decreases electricity generation. Additionally, a low carbon-to-nitrogen ratio reduces methane emissions, while a high ratio effectively inhibits nitrous oxide emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Thomas K. Wood, Ilke Gurgan, Ethan T. Howley, Ingmar H. Riedel-Kruse
Summary: The anaerobic oxidation of methane (AOM) in microbial fuel cells (MFCs) shows great promise in converting methane into electricity and value-added chemicals. By integrating different technologies, the performance of AOM MFCs can be significantly improved, leading to sustainable energy production.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Review
Green & Sustainable Science & Technology
Amrita Kumari Panda, Rojita Mishra, Joystu Dutta, Zishan Ahmad Wani, Shreekar Pant, Sazada Siddiqui, Saad Abdulrahman Alamri, Sulaiman A. Alrumman, Mohammed Ali Alkahtani, Satpal Singh Bisht
Summary: This paper critically investigates the factors responsible for greenhouse gas emissions during vermicomposting so that possible threats can be managed.
Article
Energy & Fuels
Leticia O. B. Cardoso, Dielle P. Procopio, Bruna B. Borrego, Louise H. Gracioso, Cassius Stevani, Renato S. Freire, Claudio A. O. do Nascimento, Elen A. Perpetuo
Summary: The transport sector is responsible for a significant portion of greenhouse gas emissions, and finding effective ways to capture and utilize carbon dioxide is crucial. Biological CO2 conversion using photosynthetic microorganisms shows promise in producing valuable products like third-generation bioethanol. However, the economic viability of 3G bioethanol production remains a challenge that requires further technical and scientific development.
BIOENERGY RESEARCH
(2023)
Review
Chemistry, Physical
Felipe de Oliveira Goncalves, Emilia Savioli Lopes, Melina Savioli Lopes, Rubens Maciel Filho
Summary: This study compared the feasibility of using ethanol and gasoline in FCEVs in Brazil, with results showing that ethanol has more advantages, including economic, environmental, and social aspects.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Agriculture, Multidisciplinary
Huanyu Zhao, Zhihao Dong, Bin Liu, Huaye Xiong, Chaoyi Guo, Prakash Lakshmanan, Xiaozhong Wang, Xinping Chen, Xiaojun Shi, Fusuo Zhang, Yueqiang Zhang
Summary: This study used the NUFER-Citrus-LCA model to analyze the greenhouse gas emissions, carbon sequestration, and ways to achieve carbon neutrality in China's citrus production system. The results showed significant variations in emissions among different provinces, with Guangdong province having the highest emissions. Nitrogen fertilizer accounted for 71.5% of the total emissions. By optimizing nitrogen fertilizer management, replacing 50% of chemical fertilizer with organic fertilizer, and using cover crops, there is potential to transform China's citrus production system from a carbon source to a carbon sink. Implementation of this crop management model is crucial for achieving carbon neutrality in the Chinese citrus industry.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Economics
Mohammad Arzaghi, Jay Squalli
Summary: This paper investigates the relationship between fuel subsidy policies and environmental emissions and finds that high fossil fuel subsidies are associated with greater greenhouse gas emissions. Fuel subsidy reform can help reduce global GHG emissions, but it is not a silver bullet solution.
Article
Engineering, Environmental
Tingting Li, Josep G. Canadell, Xiu-Qun Yang, Panmao Zhai, Qingchen Chao, Yanyu Lu, Danqing Huang, Wenjuan Sun, Zhangcai Qin
Summary: Wetlands act as sinks for CO2 and sources of CH4, and wetland management can alter these fluxes, thus impacting the climate system. This study assesses the CH4 emissions and CO2 sequestration from wetlands in China under various climate and management scenarios. The results show that wetland restoration leads to increased CH4 emissions and net CO2 sequestration, resulting in a combined net greenhouse gas sink in most scenarios. The highest climate cooling is achieved under medium restoration, consistent with the Paris agreement target.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Environmental Sciences
Xiaomeng Bo, Zhiwei Zhang, Jinyang Wang, Shumin Guo, Zhutao Li, Haiyan Lin, Yawen Huang, Zhaoqiang Han, Yakov Kuzyakov, Jianwen Zou
Summary: This comprehensive review evaluates the effects of biochar on soil organic carbon (SOC), emission of non-CO2 greenhouse gases, and crop yield, and concludes that targeted applications of biochar can have positive effects on these factors. It also highlights the need for further research to explore potential limitations and challenges of biochar in addressing climate change and ensuring crop production.
Review
Environmental Sciences
Swati Das, Rishabh Raj, Sovik Das, Makarand M. Ghangrekar
Summary: This review focuses on the application of photosynthetic microbial fuel cells (PMFC) as a bio-refinery approach to address global warming and energy demands. It discusses the production of biofuels and power generation, as well as wastewater treatment using PMFC. The review also explores CO2 bio-fixation, electron transfer mechanisms, factors affecting PMFC performance, and low-cost approaches.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Economics
Jiayi Xu, Jie-Sheng Tan-Soo, Yanlai Chu, Xiao-Bing Zhang
Summary: This paper examines the impact of gasoline price on overall automobile sales and type preference of Chinese consumers. The findings show that higher gasoline price leads to reduced sales quantity and a shift towards more fuel-efficient vehicles. However, the effect on greenhouse gas emissions is relatively modest.
Article
Environmental Sciences
Shupeng Zhu, Michael Mac Kinnon, James Soukup, Andre Paradise, Donald Dabdub, Scott Samuelsen
Summary: Communities located near goods movement hubs, such as major ports, suffer from degraded air quality due to emissions from diesel equipment. California is pursuing the use of zero-emission technologies, particularly hydrogen fuel cells, to improve freight systems. This study assesses the impacts of deploying fuel cell electric technologies (FCET) at ports in southern California and shows significant improvements in air quality and health benefits can be achieved. The findings highlight the importance of addressing environmental quality in the goods movement sector and supporting zero-emission projects through incentives and policies.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Environmental Sciences
Yikai Zhao, Afeng Zhang, Xinyu Zhu, Jiale Han, Pengfei Li, Xiaogang Shen, Shiwei Huang, Xiangle Jin, Shao Chen, Jiayong Chen, Jiaojiao Liu, Helei Liu, Qaiser Hussain, De Chen
Summary: A meta-analysis was conducted to investigate the effects of straw and biochar application on greenhouse gas emissions. The results showed that straw application significantly increased CO2 and CH4 emissions, while biochar amendment significantly reduced CO2, CH4, and N2O emissions. The amendments also had different effects on soil properties and microbial communities, and promoted nitrification and denitrification processes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Riccardo Boiocchi, Paolo Viotti, Davide Lancione, Nicoletta Stracqualursi, Vincenzo Torretta, Marco Ragazzi, Gabriela Ionescu, Elena Cristina Rada
Summary: This study analyzes the carbon footprint of a large wastewater treatment plant in central Italy, finding that energy consumption, natural gas production and transport, and nitrous oxide emissions from effluent are the most significant contributors. These findings suggest that managers of wastewater treatment plants should prioritize these aspects when taking action to mitigate carbon footprint.
Review
Environmental Sciences
Tongkun Zhang, Yuan Tang, Huan Li, Wei Hu, Jianzhong Cheng, Xinqing Lee
Summary: This research explores the development trend of biochar in soil carbon sequestration and mitigation through bibliometric analysis. The results show that China, America, and Germany are the most widely collaborated countries in this field. The research hotspots are mainly focused on pyrolysis, nutrients, microbial communities, heavy metal immobilization, crop yield, soil properties, greenhouse gases, and carbon fraction. In future research, it is important to investigate the interaction mechanisms between biochar, soil, and soil microbial communities, and evaluate the carbon sink effect of biochar on a global scale.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(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)