Impacts of hydraulic retention time on a continuous flow mode dual-chamber microbial fuel cell for recovering nutrients from municipal wastewater

Ye, Yuanyao; Ngo, Huu Hao; Guo, Wenshan; Chang, Soon Woong; Nguyen, Dinh Duc; Zhang, Xinbo; Zhang, Shicheng; Luo, Gang; Liu, Yi

doi:10.1016/j.scitotenv.2020.139220

Cited by 53 publications

(12 citation statements)

References 60 publications

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“…A COD removal e ciency of 92% was reported in 0.69 d in a dual-chambered MFC (Ye et al 2020). The lignin removal e ciencies were found in the range of 49-68%.…”

Section: Electrochemical Assessmentsmentioning

confidence: 92%

Effect of Influent pH and Hydraulic Retention Time on Bioelectricity Generation in an Integrated Acidogenic Reactor and Microbial Fuel Cell Treating Rice Mill Wastewater

Raychaudhuri

Behera

2021

Preprint

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An innovative design approach was employed in the present study to enhance the electricity generation and wastewater treatment in a microbial fuel cell (MFC). A dual-chambered MFC with a ceramic separator was coupled with an acidogenic chamber. Acidogenic bioconversion of rice mill wastewater into volatile fatty acid (VFA) represents an interesting approach for wastewater valorization. The VFA containing effluent could be used as an effective substrate for bioelectricity generation in MFCs. A short hydraulic retention time (HRT) can be used for the two-stage anaerobic process (acidogenesis and electrogenesis), thus preventing the proliferation of methanogens. The effect of pH (5.5–7.5) and HRT (0.5 d–0.75 d) were investigated to understand the influence of operational parameters on the performance of the integrated system. The maximum VFA concentration of 1065.15 ± 5.08 mg COD/L was achieved at pH 7.5 and HRT 0.5 d. Under these operating conditions, the general activity of acid-forming microorganisms and exoelectrogens improved remarkably, and the power density obtained from the system was 4.72 ± 0.10 W/m3. The current research indicates excellent potential for simultaneous treatment and electricity production from rice mill wastewater. The use of low-cost, locally manufactured, and customized membranes and the two-stage treatment can pave the way for the practical application of this technology.

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“…A COD removal e ciency of 92% was reported in 0.69 d in a dual-chambered MFC (Ye et al 2020). The lignin removal e ciencies were found in the range of 49-68%.…”

Section: Electrochemical Assessmentsmentioning

confidence: 92%

Effect of Influent pH and Hydraulic Retention Time on Bioelectricity Generation in an Integrated Acidogenic Reactor and Microbial Fuel Cell Treating Rice Mill Wastewater

Raychaudhuri

Behera

2021

Preprint

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“…Considering that a large-scale BES will work in continuous mode and the relevance of maintaining the energy requirements, HRT and SPI have been considered for some scale-up BES reactors (Dekker et al, 2009;Fitschen et al, 2019;Haavisto et al, 2017;Walter et al, 2016;Ye et al, 2020). Other parameters proposed in the literature are specific current density, electrode spacing and electrode geometry (Cotterill et al, 2017;Jadhav et al, 2021;Janicek et al, 2014;Papillon et al, 2021).…”

Section: Reactor Configurationmentioning

confidence: 99%

Industrial bioelectrochemistry for waste valorization: State of the art and challenges

Maureira

Romero

Illanes

et al. 2023

Biotechnology Advances

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“…The Haber-Bosch process is an energy-intensive process that requires high temperature and pressure. In recent years, wastewater has been considered a renewable resource of water [13], nutrients, and energy [13][14][15][16]. Since phosphorus and nitrogen are the principal ingredients of fertilizer, the recovery of phosphorus (P) and nitrogen (N) (such as by plants) from wastewater is now becoming recognized as a rational approach [17].…”

Section: Introductionmentioning

confidence: 99%

Coupling Microbial Fuel Cell and Hydroponic System for Electricity Generation, Organic Removal, and Nutrient Recovery via Plant Production from Wastewater

Paucar

Sato

2022

Energies

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The world is predicted to face serious threats from the depletion of non-renewable energy resources, freshwater shortage, and food scarcity. Microbial fuel cells (MFCs) are innovative bio-electrochemical devices capable of directly converting chemical energy into electrical energy using microorganisms as a catalyst. This ability has been explored for generating electricity using wastewater as an energy source, while simultaneously treating wastewater. On the other hand, hydroponics is the cultivation of plants in water without soil. The goal of this study was to develop a novel integrated microbial fuel cell-hydroponic system (MFC-Hyp system) that possesses the ability to concurrently generate electricity while degrading organic pollutants (Chemical oxygen demand, COD) in wastewater, remove and recover nutrients (phosphorus, P and nitrogen, N) from the wastewater, and produce edible plants. The MFC-Hyp system developed in this study produced a power density of 250.7 mW/m2. The power density increased by approximately 19% and the phosphorus recovery increased to 7.5% in the presence of Allium tuberosum compared to 4.9% without the plant (e.g., in the control). The removal efficiencies of nitrate, phosphate, and COD are 32%, 11%, and 80%, respectively. The results indicate that the novel integrated MFC-Hyp system can remove COD from wastewater, generate electricity using wastewater as an energy source, and utilize nutrients for growing plants; however, this system requires further improvement for field implementation.

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Impacts of hydraulic retention time on a continuous flow mode dual-chamber microbial fuel cell for recovering nutrients from municipal wastewater

Cited by 53 publications

References 60 publications

Effect of Influent pH and Hydraulic Retention Time on Bioelectricity Generation in an Integrated Acidogenic Reactor and Microbial Fuel Cell Treating Rice Mill Wastewater

Effect of Influent pH and Hydraulic Retention Time on Bioelectricity Generation in an Integrated Acidogenic Reactor and Microbial Fuel Cell Treating Rice Mill Wastewater

Industrial bioelectrochemistry for waste valorization: State of the art and challenges

Coupling Microbial Fuel Cell and Hydroponic System for Electricity Generation, Organic Removal, and Nutrient Recovery via Plant Production from Wastewater

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