Article
Biochemistry & Molecular Biology
Abdelrhman Mohamed, Hannah M. Zmuda, Phuc T. Ha, Erik R. Coats, Haluk Beyenal
Summary: The combinatio of polarized electrodes with microbial fuel cells has led to the development of a switchable dual-mode bioelectrochemical wastewater treatment system, showing improved COD removal efficiency in both laboratory and pilot scale systems.
BIOELECTROCHEMISTRY
(2021)
Article
Chemistry, Physical
Sudarsu Ramanaiah, Cristina M. Cordas, Sara Matias, Luis P. Fonseca
Summary: The electrochemical features of biocathodes in microbial fuel cells running on wastewater were evaluated in this study. It was found that the presence of bacteria, especially when biofilms are allowed to develop, enhanced active redox processes such as oxygen reduction. The study contributes to understanding the advantages of using biocathodes over abiotic ones and the bioelectrochemical processes occurring on the biotic chambers and electrode surfaces.
Article
Electrochemistry
Morgane Hoareau, Luc Etcheverry, Benjamin Erable, Alain Bergel
Summary: The microbial electrochemical snorkel (MES) is a cost-effective technology that reduces wastewater treatment costs by minimizing the need for aeration. Proper aeration can enhance MES potential and improve COD removal efficiency. Adjusting aeration zone and frequency is crucial for running MES in optimal conditions to increase efficiency and stability.
ELECTROCHIMICA ACTA
(2021)
Review
Environmental Sciences
Hajera Gul, Waseem Raza, Jechan Lee, Mudassar Azam, Mujtaba Ashraf, Ki-Hyun Kim
Summary: The global energy crisis has led to the development of green energy technologies like microbial fuel cells (MFCs) for wastewater treatment and bioenergy generation. Factors affecting energy production are discussed to optimize MFC processes, including design and operational conditions. However, challenges still remain in balancing harvesting efficiency and upscaling MFC systems.
Article
Polymer Science
Pedro Perez-Rodriguez, Carlos A. Covarrubias-Gordillo, Jose A. Rodriguez-De la Garza, Cynthia L. Barrera-Martinez, Silvia Y. Martinez-Amador
Summary: In this study, composites of polyurethane and graphite and polyurethane and carbon nanofibers were synthesized and used as anodes in dual-compartment microbial fuel cells for wastewater treatment, achieving electrical energy generation and organic matter removal.
Article
Electrochemistry
Sanne M. de Smit, Cees J. N. Buisman, Johannes H. Bitter, David P. B. T. B. Strik
Summary: The study showed that cyclic voltammetry (CV) can induce changes in biocathode composition in microbial electrosynthesis systems (MES), while also complicating its use as an analysis technique. However, CV has a positive effect on reactor performance and productivity.
Review
Energy & Fuels
Anusha Ganta, Yasser Bashir, Sovik Das
Summary: This article explores the feasibility of using microbial electrochemical technologies as an alternative to traditional methods for treating dairy wastewater, aiming to reduce energy consumption and purification costs. The article also discusses several obstacles in the real-world application and techno-economic assessment of these innovative technologies.
Review
Biochemistry & Molecular Biology
Wilgince Apollon
Summary: This article introduces the latest advancements in the design, operation mode, and electricity and fuel production capacity of microbial fuel cells (MFCs) in bioelectrochemical systems (BESs). MFCs can generate sustainable energy from wastewater and waste materials, reducing environmental pollution and energy consumption and treatment costs. However, the implementation of MFCs still faces challenges and further efforts are needed to achieve commercial viability.
Article
Biophysics
Nazua L. Costa, Germaine Olorounto, Estelle Lebegue, Frederic Barriere
Summary: By using the optimized grafted anthraquinone electrode as a pH monitoring probe, the pH change at the biofilm-electrode interface can be accurately monitored. The study found that during the biofilm colonization period, the interface pH decreased to 5.3, while the anolyte only acidified to pH 6.2.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Article
Engineering, Chemical
Ralitza Koleva, Gergana Peeva, Hyuseyin Yemendzhiev, Valentin Nenov
Summary: This paper discusses two options for applying microbial fuel cells (MFCs) in water treatment: converting the chemical energy of organic substrates into electricity and using their potential to reduce different species. Experimental results indicate that higher organic load leads to better electrical yield in MFCs.
Article
Environmental Sciences
Jain Suransh, Dipak A. Jadhav, D. Duc Nguyen, Arvind Kumar Mungray
Summary: Researchers are experimenting with scaling up microbial fuel cells (MFCs) for wastewater treatment with satisfactory results. This pilot project successfully created a decentralized system for treating domestic wastewater and generating energy. The system, utilizing a cylindrical-shaped earthen membrane, operated for 92 days and achieved high removal rates for COD, nitrate, and NH3-N. The promising performance of the pilot MFC indicates its potential for cost-effective field applications.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
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
Shentan Liu, Zuo Wang, Xiaojuan Feng, Sang-Hyun Pyo
Summary: An innovative design of MER coupled with IAF-PMFC was developed for azo dye wastewater treatment and electricity generation. The sequential degradation of azo dye and the feasibility of energy self-sufficiency were assessed. The combined system achieved high decolorization efficiency and COD removal, even at high dye concentration. The MER/IAF-PMFC technology can simultaneously realize refractory wastewater treatment and balance of electricity production and consumption.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Huimin Wang, Xiaoyan Qi, Siyu Chen, Xia Wang
Summary: In this study, breeding wastewater was efficiently treated using an electroactive microbial community screened from the native microorganisms of the wastewater in microbial fuel cells. The results showed good power generation and high pollutants removal efficiency. The morphology characterization demonstrated the formation of a thick biofilm by the screened electroactive microbial community. Microbial community analysis revealed an increase in microorganisms associated with electricity generation and pollutant degradation, while pathogenic microorganisms were greatly decreased. These findings suggest that the MFC constructed using the screened electroactive microbial community can be a sustainable method for breeding wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Min Yee Chin, Zhen Xin Phuang, Kok Sin Woon, Marlia M. Hanafiah, Zhen Zhang, Xiaoming Liu
Summary: Bioelectrochemical systems (BES) and integrated microbial fuel cell (MFC) systems are compared for their environmental performance in treating wastewater while producing energy. The study finds that the double chamber air-cathode microbial electrolysis cell (MEC1) and membrane distillation integrated MFC (MD + MFC) options are the most environmentally favorable. The electricity consumption is identified as the key environmental load in BES. This study provides scientific references for selecting suitable BES and integrated MFC systems to improve water sanitation and address climate change simultaneously.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Agricultural Engineering
Dileep Kumar Yeruva, Srinivas Jukuri, G. Velvizhi, A. Naresh Kumar, Y. V. Swamy, S. Venkata Mohan
BIORESOURCE TECHNOLOGY
(2015)
Article
Agricultural Engineering
S. Sreelatha, C. Nagendranatha Reddy, G. Velvizhi, S. Venkata Mohan
BIORESOURCE TECHNOLOGY
(2015)
Article
Engineering, Environmental
G. Velvizhi, S. Venkata Mohan
Review
Green & Sustainable Science & Technology
Sai Kishore Butti, G. Velvizhi, Mira L. K. Sulonen, Johanna M. Haavisto, Emre Oguz Koroglu, Afsin Yusuf Cetinkaya, Surya Singh, Divyanshu Arya, J. Annie Modestra, K. Vamsi Krishna, Anil Verma, Bestami Ozkaya, Aino-Maija Lakaniemi, Jaakko A. Puhakka, S. Venkata Mohan
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2016)
Article
Biotechnology & Applied Microbiology
S. Venkata Mohan, G. Mohanakrishna, G. Velvizhi, V. Lalit Babu, P. N. Sarma
BIOCHEMICAL ENGINEERING JOURNAL
(2010)
Article
Agricultural Engineering
S. Venkata Mohan, P. Suresh Babu, K. Naresh, G. Velvizhi, Datta Madamwar
BIORESOURCE TECHNOLOGY
(2012)
Article
Agricultural Engineering
S. Venkata Mohan, G. Velvizhi, K. Vamshi Krishna, M. Lenin Babu
BIORESOURCE TECHNOLOGY
(2014)
Article
Agricultural Engineering
G. Velvizhi, R. Kannaiah Goud, S. Venkata Mohan
BIORESOURCE TECHNOLOGY
(2014)
Article
Chemistry, Physical
G. Velvizhi, S. Venkata Mohan
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2012)
Review
Green & Sustainable Science & Technology
S. Venkata Mohan, G. Velvizhi, J. Annie Modestra, S. Srikanth
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2014)
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)