Fatemeh Oveisi, Narges Fallah, Bahram Nasernejad

Fuel • 2021

Xia Hu, Yiping Huang, Yubao Wang et al.

SSRN Electronic Journal • 2021

Quang Anh Tuan Le, Hee Gon Kim, Yong Hwan Kim

Enzyme and Microbial Technology • 2018

Haiman Wang, Youpeng Qu, Da Li et al.

Scientific Reports • 2016

Abstract A continuous stirred microbial electrochemical reactor (CSMER), comprising of a complete mixing zone (CMZ) and microbial electrochemical zone (MEZ), was used for brewery wastewater treatment. The system realized 75.4 ± 5.7% of TCOD and 64.9 ± 4.9% of TSS when fed with brewery wastewater concomitantly achieving an average maximum power density of 304 ± 31 m W m −2 . Cascade utilization of organic matters made the CSMER remove a wider range of substrates compared with a continuous stirred tank reactor (CSTR), in which process 79.1 ± 5.6% of soluble protein and 86.6 ± 2.2% of soluble carbohydrates were degraded by anaerobic digestion in the CMZ and short-chain volatile fatty acids were further decomposed and generated current in the MEZ. Co-existence of fermentative bacteria ( Clostridium and Bacteroides , 19.7% and 5.0%), acetogenic bacteria ( Syntrophobacter , 20.8%), methanogenic archaea ( Methanosaeta and Methanobacterium , 40.3% and 38.4%) and exoelectrogens ( Geobacter , 12.4%) as well as a clear spatial distribution and syntrophic interaction among them contributed to the cascade degradation process in CSMER. The CSMER shows great promise for practical wastewater treatment application due to high pre-hydrolysis and acidification rate, high energy recovery and low capital cost.

Qianwei Li, Geoffrey Michael Gadd

Microbial Biotechnology • 2017

Dazhang Yang, Naixin Wang, JingXie et al.

International Journal of Electrochemical Science • 2020

Yakui Mu, Min Zeng, Xin Wu et al.

International Journal of Electrochemical Science • 2017

Chao Ma, Shuang-Yuan Tan

International Journal of Electrochemical Science • 2020

Qinzheng Yang, Dexue Luo, Jing Yang et al.

International Journal of Electrochemical Science • 2018

Schizophrenia is a neurodegenerative disease with personality degradation, changes in behavior, cognition, affective disorder and reduced socio-professional insertion. Early diagnosis is necessary and maintenance is ensured by antipsychotic treatment and for non-compliant patients there is an alternative to depot medication that greatly improves therapeutic adherence. The study presents the case of a 43-year-old patient diagnosed with paranoid schizophrenia using the Diagnostic and Statistical Manual of Mental Disorders V-TR criteria that showed a favorable evolution under depot treatment.

Koffi OE, Bile BE

Journal of Microbial & Biochemical Technology • 2015

Jaecheul Yu, Sunwon Kim, O-Seob Kwon

Journal of Industrial Microbiology and Biotechnology • 2019

Abstract Microbial electrochemical technology (MET) that can harvest electricity/valuable materials and enhance the efficiency of conventional biological processes through the redox reaction of organic/inorganic compounds has attracted considerable attention. MET-based anaerobic digestion (AD) systems treating swine manure were operated at different applied voltages (0.1, 0.3, 0.5, 0.7, and 0.9 V) and temperatures (25, 35, and 45 °C). Among the MET-based AD systems with different applied voltages at 35 °C, M4 at 0.7 V showed the highest methane production (2.96 m3-CH4/m3) and methane yield (0.64 m3-CH4/kg-VS). The methane production and yield increased with increasing temperature at an applied voltage of 0.7 V. Nevertheless, the MET-based AD systems (LM at 25 °C and 0.7V) showed competitive AD performance (2.33 m3-CH4/m3 and 0.53 m3-CH4/VS) compared with the conventional AD system (35 °C). The microbial community was affected by the applied voltage and temperature, and hydrogenotrophic methanogens such as M. flavescens, M. hungatei, and M. thermautotrophicus were mainly responsible for methane production in MET-based AD systems. Therefore, the methane production can be enhanced by an applied voltage or by direct interspecies electron transfer because M. flavescens and M. thermautotrophicus were especially predominant in cathode of MET-based AD systems. The MET-based AD systems can help enhance biogas production from swine manure with no significant change in methane content. Furthermore, MET-based AD systems will be a promising AD system through low material development and the optimal operation.

Unknown Author

Abasyn Journal Life Sciences • 2017

Microbial fuel cell (MFC) is one of the promising fuel cell technologies. MFCs offer a breakthrough for the treatment of wastewater coupled with energy generation. However, their applications are mostly limited to laboratories. Present research is focused on conducting the biological treatment of wastewater originated from fermentation industry using microbial fuel cell (MFC) through the microbes to achieve the wastewater treatment as well as renewable energy generation. The efficiency of MFC was studied at different operating and nutritional conditions, including pH, temperature, aeration rate and substrate concentration with biocatalyst Saccharomyces servisa. The open-circuit maximum voltage generated 2100 mv and using 50 Ω resister given 1800 mv. Numerous parametric effect was measured by altering the value of aeration rate from 20-35 mL/min with 5 mL/min step size; pH from 6-9 with step size pH 1, and substrate from 25-100% with step size 25%. From above discussed parameter power and current density were maximum at pH 8 about 725 mv/l and 350 mA. Results suggested that utilization of fermented sludge in MFC could give direction to handle the problem of fermentation industries and also to overcome a small fraction of energy crisis. Keywords: Electricity generation, Primary fermented sludge, Microbial fuel cell

Xinghua, Hanjie Wu

International Journal of Electrochemical Science • 2016

Ainara Domínguez‐Garay, Jose Rodrigo Quejigo, Ulrike Dörfler et al.

Microbial Biotechnology • 2017

Summary The absence of suitable terminal electron acceptors ( TEA ) in soil might limit the oxidative metabolism of environmental microbial populations. Bioelectroventing is a bioelectrochemical strategy that aims to enhance the biodegradation of a pollutant in the environment by overcoming the electron acceptor limitation and maximizing metabolic oxidation. Microbial electroremediating cells ( MERC s) are devices that can perform such a bioelectroventing . We also report an overall profile of the 14 C‐ ATR metabolites and 14 C mass balance in response to the different treatments. The objective of this work was to use MERC principles, under different configurations, to stimulate soil bacteria to achieve the complete biodegradation of the herbicide 14 C‐atrazine ( ATR ) to 14 CO 2 in soils. Our study concludes that using electrodes at a positive potential [+600 mV (versus Ag/AgCl)] ATR mineralization was enhanced by 20‐fold when compared to natural attenuation in electrode‐free controls. Furthermore, ecotoxicological analysis of the soil after the bioelectroventing treatment revealed an effective clean‐up in < 20 days. The impact of electrodes on soil bioremediation suggests a promising future for this emerging environmental technology.

Xinghua Liang, Hanjie Wu, Haiyan Chen

International Journal of Electrochemical Science • 2016

Fei Tong, Jie Gong, Jinlong Jiang et al.

International Journal of Electrochemical Science • 2020

Liping Fan, Lulu Zhang

International Journal of Electrochemical Science • 2018

Oskar Modin, Nafis Fuad, Sebastien Rauch

Electrochimica Acta • 2017

Xuerong Zai, Zhiwei Duan, Wei Chen et al.

Journal of Ocean University of China • 2019

Bhim Sen Thapa, S. Seetharaman, Raghuram Chetty et al.

Enzyme and Microbial Technology • 2019

Ehsan Direkvandi, Tahereh Mohammadabadi, Abdelfattah Z M Salem

Translational Animal Science • 2020

Abstract Arabi lambs (n =28; body weight = 24 ± 3.7 kg; average age = 120 ± 8 days) were used to investigate the effect of microbial additives on growth performance, microbial protein synthesis and rumen microbial population of fattening lamb based on completely randomized design. Four treatments were studied: (1) control (without additive; CON); (2) Lactobacillus fermentum and L. plantarum (FP); (3) Saccharomyces cerevisiae (SC) plus FP (SCFP); and (4) Megasphaera elsdenii plus SCFP (MSCFP). Lambs were inoculated before morning feeding (daily oral dosed) with a 50 mL microbial suspension as follows: FP, 50 mL bacterial suspension containing 4.5 × 108 colony-forming unit per day (cfu/d) of L. plantarum and L. fermentum (in ratio 50:50); SCFP, 50 mL microbial suspension containing 4.5 × 108 cfu/d FP and 1.4 × 1010 cfu/d SC; MSCFP, 50 mL microbial suspension containing 4.5 × 108 cfu/d Me, 4.5 × 108 cfu/d FP and 1.4 × 1010 cfu/d SC. Feed intake and body weight of lambs were not affected by microbial additives. Average daily gain and feed efficiency were increased on day 0 to 21. The highest concentration of uric acid, total excreted purine derivatives (PD), microbial N, microbial CP, and metabolizable protein were in MSCFP lambs. The ruminal population of Ruminococcus albus and Ruminococcus flavefaciens was higher in MSCFP and SCFP than CON and FP lambs. The highest and the lowest abundance of M. elsdenii and methanogen respectively was observed in lambs fed on microbial additives. The tendency to improve growth performance vs. CON may be due to improvements in microbial protein synthesis and microbial populations, especially fiber-degrading bacteria. The decrease in the population of methanogens as a result of the use of microbial additives is another positive result.

Chong Liu

ECS Meeting Abstracts • 2020

Microorganisms are powerful biocatalysts that can fulfill chanllagning chemical reactions at ambient conditions. Interfacing microorganisms with electrochemistry offers a viable route to achieve a distributed electristry-driven chemical synthesis with renewable energy. Here we describe our progress at the microibal-materials interface for electrochemical reduction of CO 2 and N 2 , with advanced design of nanomaterials.

Bipro Ranjan Dhar, Hodon Ryu, Jorge W. Santo Domingo et al.

Journal of Power Sources • 2016

Mounika Kodali, Rohan Gokhale, Carlo Santoro et al.

Journal of The Electrochemical Society • 2016

Z. Zafar, K. Ayaz, M. H. Nasir et al.

International Journal of Environmental Science and Technology • 2018

Jiannan Li, Yanling Yu, Dahong Chen et al.

Bioresource Technology • 2020

The hydrophilic three-dimensional (3D) structure of graphene materials was produced with reducing agent-ethylene glycol through hydrothermal reduction. Numerous microorganisms with diverse community structure were established in anode surface, as the hydrophilicity of the graphene anode increased; more populations of Proteobacteria and Firmicutes families were identified in a higher hydrophilic anode. In addition, the start-up time of a microbial fuel cell (MFC) equipped with hydrophilic 3D graphene anode was only 43 h, which is much shorter than traditional 3D graphene-based anode systems. The most hydrophilic anode exhibited the maximal power density of 583.8 W m -3 , 5 times larger than the least hydrophilic one. The content of oxygen in graphene materials improving hydrophilicity would play an important role in enhancing power density. This study proves that hydrophilic 3D graphene materials as the anode can improve MFC performance and start-up time.

Chao-Chin Chang, Wade Kao, Chang-Ping Yu

Chemical Engineering Journal • 2020

Li-ping Fan, Tian Gao

International Journal of Electrochemical Science • 2018

Piyush Kumar, Ram Prakash Bharti

Journal of The Electrochemical Society • 2018

Fernanda Leite Lobo, Xin Wang, Zhiyong Jason Ren

Journal of Power Sources • 2017

Xiao Han, Lizhi Chen, Di He et al.

International Journal of Electrochemical Science • 2019

Shuihong Li, Qianqian Mou, Nuozhou Feng et al.

International Journal of Electrochemical Science • 2018

Geetanjali, Radha Rani, Sanjay Kumar

International Journal of Hydrogen Energy • 2019

Lewis Hsu, Abdelrhman Mohamed, Phuc Thi Ha et al.

Journal of The Electrochemical Society • 2016

Meng Li, Shaoqi Zhou

Chemical Engineering Journal • 2018

Guotao Sun, Kang Kang, Ling Qiu et al.

Bioelectrochemistry • 2019

Eliseo Herrero‐Hernandez, David Greenfield, Thomas J. Smith et al.

Electroanalysis • 2019

Abstract A mediatorless microbial fuel cell was developed using Escherichia coli bacteria and platinised titanium mesh as electrodes, producing a maximum power density of 627 mW m −2 . The performance characteristics of the fuel cell were evaluated using both electrochemical and optical techniques. Cyclic Voltammetry showed that an anaerobically grown cell suspension of E. coli was electrochemically active, and is consistent with a role for E. coli ‐secreted mediators in the functioning of the cell, after the formation of a biofilm on the surface of the electrode. Electrochemical impedance spectroscopy (EIS) data show a variation in the internal resistance during bacterial growth. EIS analysis based on an equivalent circuit revealed that the initial internal resistance of the cell (5.6 MΩ) initially reduces by around 50 % over an 8 hour period; more or less the same time where the fuel cell reaches its maximum potential of 860 mV, whereupon the resistance begins to increase resulting in the corresponding fall in potential; this trend was reversible upon the introduction of further nutrients into the cell.

M. Sindhuja, V. Sudha, S. Harinipriya et al.

Materials Today: Proceedings • 2018

Giacomo Falcucci, Rosa Anna Nastro, Viviana Cigolotti et al.

ECS Meeting Abstracts • 2016

In this work, a novel numerical approach for the simulation of electrochemical and power performance of Microbial Fuel Cells (LBM) for waste-water treatment is proposed. Our model is based on the accurate description of the MFC internal phenomena by means of the Lattice Boltzmann Method, a numerical approach based on an optimized formulation of Boltzmann's Kinetic Energy, which has been successfully applied to phenomena of technical and engineering interest in recent years. Employing a multi-component LBM solver, an accurate prediction of wastewater flow through the reactor chamber is achieved; within the LBM framework, a novel methodology has been developed to account for the different types of anode materials in MFC reactors (carbon fiber brushes or solid porous media). The direct conversion of organic substrate into e - and H + through microbs metabolism has been modeled according to dedicated experimental activity. The electrochemical characteristics of anode and cathode electrodes have been included and their effects on internal species transport and charge transfer is accurately simulated. The very good agreement between our results and the experiments in literature highlight the reliability and versatility of LBM applied to MFC implementations. Figure 1

Christin Koch, Benjamin Korth, Falk Harnisch

Microbial Biotechnology • 2017

Summary Microbial ecology is devoted to the understanding of dynamics, activity and interaction of microorganisms in natural and technical ecosystems. Bioelectrochemical systems represent important technical ecosystems, where microbial ecology is of highest importance for their function. However, whereas aspects of, for example, materials and reactor engineering are commonly perceived as highly relevant, the study and engineering of microbial ecology are significantly underrepresented in bioelectrochemical systems. This shortfall may be assigned to a deficit on knowledge and power of these methods as well as the prerequisites for their thorough application. This article discusses not only the importance of microbial ecology for microbial electrochemical technologies but also shows which information can be derived for a knowledge‐driven engineering. Instead of providing a comprehensive list of techniques from which it is hard to judge the applicability and value of information for a respective one, this review illustrates the suitability of selected techniques on a case study. Thereby, best practice for different research questions is provided and a set of key questions for experimental design, data acquisition and analysis is suggested.