Article
Biotechnology & Applied Microbiology
Amitap Khandelwal, Kiran Dhindhoria, Ambesh Dixit, Meenu Chhabra
Summary: The study focuses on the development of a low-cost cathode catalyst for algae-based microbial fuel cells, comparing its performance with Pt coated electrodes. The new composite cathode showed higher power density, current density, algal growth, and electrocatalytic activity compared to traditional Pt-coated electrodes, which hindered algal growth.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Environmental Sciences
Supriya Gupta, Ankita Nayak, Chandrima Roy, Asheesh Kumar Yadav
Summary: This study reports on a three-stage design of algal assisted constructed wetland-microbial fuel cell incorporated sand filter for efficient treatment of wastewater and bioelectricity generation. The system achieved high removal efficiencies for organic matter and inorganic pollutants such as NH4+, PO43-, and NO3-.
Article
Environmental Sciences
Silvia Bolognesi, Daniele Cecconet, Arianna Callegari, Andrea G. Capodaglio
Summary: This study investigated the use of microbial fuel cells and microalgae process in combination for the effective treatment of wastewater, aiming to reduce greenhouse gas emissions and enhance resource recovery. The system equipped with a microalgal biocathode proved to be capable of efficiently treating real wastewater, surpassing the effectiveness of the control unit under specific conditions.
ENVIRONMENTAL RESEARCH
(2021)
Article
Agricultural Engineering
Arti Sharma, Meenu Chhabra
Summary: The study found that Chlamydomonas reinhardtii supports high power output in a photosynthetic microbial fuel cell and is highly resourceful in terms of value-added products.
BIORESOURCE TECHNOLOGY
(2021)
Article
Thermodynamics
Kui Chen, Salah Laghrouche, Abdesslem Djerdir
Summary: This article explores the performance evolution of PEMFC under real traffic and environmental conditions and discusses the correlation between output voltage and operating conditions, as well as the impact of ambient temperature on PEMFC performance. A model-driven method based on voltage model and filter is proposed for estimation.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Environmental Sciences
Houyun Yang, Jian Chen, Li Yu, Weihua Li, Xianhuai Huang, Qian Qin, Shuguang Zhu
Summary: Constructed wetland-microbial fuel cell system (CW-MFC) is an effective technology for domestic wastewater treatment and bioelectricity generation. This study investigated the influence of influent COD concentration, HRT, and external resistance on system performance and found the optimal operating conditions. The results showed that CW-MFC outperformed traditional CW system in terms of pollutant removal efficiency and bioelectricity production. The analysis of microbial community indicated that the enrichment of electroactive bacteria and denitrifying bacteria might contribute to the performance improvement of CW-MFC system.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Xavier Alexis Walter, Elena Madrid, Iwona Gajda, John Greenman, Ioannis Ieropoulos
Summary: In this study, the performance and efficiency of ceramic microbial fuel cells (c-MFCs) and self-stratifying microbial fuel cells (s-MFCs) under similar feeding conditions were compared. The results showed that c-MFCs displayed constant performance independently from the hydraulic retention time (HRT) and had high energy conversion efficiency at longer HRT. On the other hand, the performance of s-MFCs was correlated with HRT, with the best performance achieved under short HRT. However, the energy conversion efficiency of s-MFCs remained constant regardless of HRT.
JOURNAL OF POWER SOURCES
(2022)
Article
Environmental Sciences
Mandar S. Bhagat, Arvind Kumar Mungray, Alka A. Mungray
Summary: This paper investigates the performance of a pilot-scale constructed wetland osmotic microbial fuel cell (CW-OMFC) under different gravel conditions. The use of high porous materials in the CW-OMFC resulted in higher power generation, lower salt flux, and higher COD removal efficiency. Additionally, the plants in the system were able to uptake nutrients from the wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Ruda Lee, Hyomun Lee, Dongsu Kim, Jongho Yoon
Summary: This study aims to analyze the power generation performance of flexible CIGS modules under outdoor exposure conditions to evaluate their applicability to BIPV buildings.
ENERGY SCIENCE & ENGINEERING
(2022)
Article
Thermodynamics
Tiancheng Ouyang, Xiaoyi Hu, Xiaomin Shi, Wenjun Liu, Jie Lu, Wenhao Li
Summary: This paper proposes an innovative numerical model of microfluidic microbial fuel cell and investigates the effects of pH, dissolved oxygen, and electrode porosity on its performance and microbial distribution. The results show that pH gradient inhibits bacterial growth, higher electrode porosity enhances substrate transport, and higher dissolved oxygen concentration improves performance.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Thermodynamics
Dongwoo Kim, DongChan Lee, Minwoo Lee, Hyun Joon Chung, Yongchan Kim
Summary: The refrigerant R32 is being considered as an alternative to R410A in heat pumps due to its lower global warming potential. The two-phase injection (TPI) technique improves energy performance and system reliability in R32 heat pumps, especially in high discharge temperature conditions. Performance and reliability comparisons between R32 and R410A TPI heat pumps are conducted, with R32 demonstrating superior heating capacity and coefficient of performance (COP) at low outdoor temperatures.
Article
Green & Sustainable Science & Technology
Priyakant Pushkar, Arvind Kumar Mungray
Summary: The study showed that sediment height, anode size, and chamber volume can impact the diffusion impedance and power density in benthic microbial fuel cells (BMFCs), suggesting practical implications for improving energy generation efficiency. Microbial consortia were found to play a crucial role in mass transport phenomena and electrochemical diffusion in BMFCs.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Environmental Sciences
Min Xu, Jianfeng Li, Bingchuan Liu, Changzhu Yang, Huijie Hou, Jingping Hu, Jiakuan Yang, Keke Xiao, Sha Liang, Dongliang Wang
Summary: Microbial fuel cell (MFC) sensor has great potential for early warning water toxicity monitoring, but long-term operation may decrease its sensitivity due to dead cell accumulation in the anode biofilm. Exposing the biofilm to toxins repeatedly can lead to microbial community adjustment for higher endurance. Modification of the anodic biofilm can enhance sensitivity, especially for newly formed biofilm with higher live cell ratio.
Article
Engineering, Chemical
Chikashi Sato, N. Evelin Paucar, Steve Chiu, Muhammad Z. I. M. Mahmud, John Dudgeon
Summary: This study demonstrated that connecting microbial fuel cells in series can increase power output, but it is crucial to choose low resistance bamboo charcoal to enhance power density.
Article
Environmental Sciences
Amitap Khandelwal, Piet N. L. Lens
Summary: This study aimed to develop and utilize an algae-assisted microbial fuel cell (AMFC) for the purification of biogas by removing both CO2 and H2S and simultaneous bioelectricity generation. The AMFC exhibited a sulfide removal efficiency exceeding 97% and a power density of 24.99 mW/m(3) at sulfide concentration of 400 mg/l. In addition, the AMFC showed potential for improving CO2 utilization for algae cultivation.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Agricultural Engineering
Amitap Khandelwal, Ankisha Vijay, Ambesh Dixit, Meenu Chhabra
BIORESOURCE TECHNOLOGY
(2018)
Article
Engineering, Environmental
Ankisha Vijay, Amitap Khandelwal, Meenu Chhabra, Tessy Vincent
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Physical
Bhawna Chaubey, Pooja Narwal, Amitap Khandelwal, Samanwita Pal
Summary: This study characterized the molecular interaction and photo-degradation behavior of halogen-containing insecticide FPD in the presence of humic acid KHA. The results showed a significant decrease in photo-degradation rate constant of FPD in the presence of KHA, with different degradation rates observed through H-1 and F-19 NMR spectral changes. FPD binds to KHA through the chlorinated pyridine ring, and exhibits a stronger association compared to DFA-KHA. Both FPD and DFA bind with KHA through weak non-covalent interactions, hindering the photo-degradation process of FPD.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Abhishek Mishra, Ravi Kumar, Amitap Khandelwal, Prem Lama, Meenu Chhabra, Ramesh K. Metre
Summary: A novel dinuclear diorganotin sulfide was synthesized and characterized by various experimental techniques, revealing significant bactericidal activity against both gram positive and negative bacteria. The molecular and electronic structure analysis provided insights into the ligand coordination and properties of the complex.
Article
Chemistry, Inorganic & Nuclear
Abhishek Mishra, Aayush Batar, Ravi Kumar, Amitap Khandelwal, Prem Lama, Meenu Chhabra, Ramesh K. Metre
Summary: Three organostanoxanes with different nuclearities were synthesized using different organotin precursors, showing hexanuclear, dinuclear, and tetranuclear structures. The antibacterial activity and HOMO-LUMO gap of these complexes are correlated, with complex 3 exhibiting better antibacterial activity.
Article
Biotechnology & Applied Microbiology
Amitap Khandelwal, Kiran Dhindhoria, Ambesh Dixit, Meenu Chhabra
Summary: The study focuses on the development of a low-cost cathode catalyst for algae-based microbial fuel cells, comparing its performance with Pt coated electrodes. The new composite cathode showed higher power density, current density, algal growth, and electrocatalytic activity compared to traditional Pt-coated electrodes, which hindered algal growth.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Environmental Sciences
Amitap Khandelwal, Piet N. L. Lens
Summary: This study aimed to develop and utilize an algae-assisted microbial fuel cell (AMFC) for the purification of biogas by removing both CO2 and H2S and simultaneous bioelectricity generation. The AMFC exhibited a sulfide removal efficiency exceeding 97% and a power density of 24.99 mW/m(3) at sulfide concentration of 400 mg/l. In addition, the AMFC showed potential for improving CO2 utilization for algae cultivation.
ENVIRONMENTAL TECHNOLOGY
(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)
