Organic matter removal and nitrogen transformation by a constructed wetland-microbial fuel cell system with simultaneous bioelectricity generation

González, Thaís; Puigagut, Jaume; Vidal, Gladys

doi:10.1016/j.scitotenv.2020.142075

Cited by 40 publications

(5 citation statements)

References 75 publications

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“…These findings are consistent with previous research [85]. However, some researchers believe that the overall effective denitrification performance in CW-MFC is mainly attributed to the diverse bacterial communities and the presence of abundant electroactive bacteria, which contribute to enhancing the rates of anaerobic ammonium oxidation, nitrification, and denitrification processes within CW-MFC [31,66,86].…”

Section: Effect Of Different Co-substrates On the Cw-mfc Performancesupporting

confidence: 91%

Study on the Removal Characteristics of IBP and DCF in Wastewater by CW-MFC with Different Co-Substrates

Qin,

Feng,

et al. 2023

Water

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Pharmaceuticals and Personal Care Products (PPCPs) constitute a group of compounds that are challenging to break down and potentially pose risks to both ecosystems and human health when they accumulate in water bodies. This study established and operated small-scale constructed wetland–microbial fuel cells (CW-MFCs) continuously for 60 days, maintaining a hydraulic retention time (HRT) of 3 days. The research aimed to assess the treatment efficiency of wastewater containing Ibuprofen (IBP) and Diclofenac (DCF) using different co-substrates (glucose, sucrose, and sodium acetate) and to analyze the impact of these co-substrates on the composition of bacterial communities within the CW-MFC. After 60 days of operation, CW-MFC achieved removal rates of 89.29% for IBP and 84.10% for DCF. The elimination of IBP was primarily dependent on co-metabolic degradation processes occurring in both the anode and cathode, while DCF removal relied on anodic co-metabolism. Additionally, various co-substrates have an influence on the bacterial community diversity of the anode and cathodes. The possible bacterial groups involved in PPCP degradation were identified. In summary, Glu was identified as a more suitable co-substrate for CW-MFC in the removal of IBP and DCF, while SA as a co-substrate favored the induction and enrichment of EAB in the anodes. These findings offer valuable insights into the potential of CW-MFC for mitigating emerging contaminants.

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Section: Effect Of Different Co-substrates On the Cw-mfc Performancesupporting

confidence: 91%

Study on the Removal Characteristics of IBP and DCF in Wastewater by CW-MFC with Different Co-Substrates

Qin,

Feng,

et al. 2023

Water

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“…The generation of bioelectricity through MFCs (Microbial Fuel Cells) and its integration with constructed wetland systems significantly improves the performance of wastewater treatment. [16], However, they have also demonstrated that the use of S. californicus flora increases electricity generation by 2.2 to 3.5 times, providing an improvement in P-MFC systems. This latest type of technology derived from MFCs converts solar energy into bioelectricity through the interrelation between the plant and the microbe in the plant's rhizosphere region.…”

Section: Start Pointmentioning

confidence: 99%

Electronic Design of a DC-DC Boost Converter for Powering a Lo-Ra Communication Board with Bioelectricity by “Plantas Andinas”

Alarcón-Maz,

Balseca-Dahu,

Alarcón-Maz

et al. 2023

espoch

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The use of bioelectricity in various areas of science has made it indispensable to resort to new technologies to take full advantage of this natural resource. Plants are living beings, and through their biochemical processes produce a small amount of electricity derived from oxidation-reduction processes. For this reason, it is proposed to use electronic and power techniques to increase the flow of electrons produced by plants of Andean characteristics, and consequently feed a Lo-Ra type communication card, meeting the needs of long-distance data transmission, used in the collection of field information, either in areas where access or availability of power lines is complex. This proposal motivates us to continue working on sustainable energy and the exploitation of natural resources. This document details the theory, practice, and methods used to meet the objective of supplying power to a wireless communication system over a long distance. First, a description of the most important issues to be addressed is developed, and then special focus is given to the design for development of the power electronics circuit, specifically an elevator type DC-DC converter. Finally, the results obtained through the implementation used in this case are documented. Keywords: bioelectricity, MFC, boost-converter, Andean plants, totora, Lo-Ra TTGO. Resumen El uso de bioelectricidad en diversas áreas de la ciencia ha hecho indispensable recurrir a nuevas tecnologías para aprovechar al máximo este recurso natural. Las plantas, como seres vivos, producen una pequeña cantidad de electricidad a través de sus procesos bioquímicos, derivada de procesos de oxidación-reducción. Por esta razón, se propone utilizar técnicas electrónicas y de potencia para aumentar el flujo de electrones producidos por plantas de características andinas, y alimentar así una tarjeta de comunicación de tipo Lo-Ra, satisfaciendo las necesidades de transmisión de datos a larga distancia, utilizadas en la recolección de información de campo, ya sea en áreas donde el acceso o la disponibilidad de líneas eléctricas es compleja Esta propuesta motiva a continuar trabajando en energía sostenible y en la explotación de recursos naturales. Este documento detalla la teoría, práctica y los métodos utilizados para cumplir con el objetivo de suministrar energía a un sistema de comunicación inalámbrico a larga distancia. En primer lugar, se desarrolla una descripción de los temas más importantes a abordar, y luego se presta especial atención al desarrollo del diseño del circuito de electrónica de potencia, específicamente un convertidor DC-DC tipo elevador; y finalmente, se documentan los resultados obtenidos a través de la implementación utilizada en este caso. Palabras Clave: bioelectricidad, CCM, convertidor-elevador, plantas andinas, totora, TTGO Lo-Ra.

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“…The monitoring and calculation of the concentrations of pollutants (COD, NH 3 -N, and , among) and electrical performance tests (e.g., voltage output, power generation, and polarization curves) were performed as described in a previous study (Gonzalez et al 2021). The current density, power density, exchange current density and coulombic e ciency (CE) were calculated according to a previous study (Yellappa et al 2020) and presented in the data analysis section of supplementary materials (Section 2).…”

Section: Test and Calculationmentioning

confidence: 99%

Enhancing the anode performance of microbial fuel cells in the treatment of oil-based drill sludge by adjusting the stirring rate and supplementing oil-based drill cuttings

Liu

et al. 2021

Sustainable Energy Fuels

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Organic matter removal and nitrogen transformation by a constructed wetland-microbial fuel cell system with simultaneous bioelectricity generation

Cited by 40 publications

References 75 publications

Study on the Removal Characteristics of IBP and DCF in Wastewater by CW-MFC with Different Co-Substrates

Study on the Removal Characteristics of IBP and DCF in Wastewater by CW-MFC with Different Co-Substrates

Electronic Design of a DC-DC Boost Converter for Powering a Lo-Ra Communication Board with Bioelectricity by “Plantas Andinas”

Enhancing the anode performance of microbial fuel cells in the treatment of oil-based drill sludge by adjusting the stirring rate and supplementing oil-based drill cuttings

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