Coupling of anaerobic digester and microbial fuel cell for COD removal and ammonia recovery

Kim, Taeyoung; An, Junyeong; Jang, Jae Kyung; Chang, In Seop

doi:10.1016/j.biortech.2015.06.009

Cited by 83 publications

(27 citation statements)

References 22 publications

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“…The COD removal efficiency achieved in Phase 2(b) is slightly lower than that obtained by Kim et al . working with a two‐chambered MFC (external resistance of 1 kΩ) fed in batch with digested swine wastewater (61.1%) …”

Section: Resultsmentioning

confidence: 99%

“…MFCs have recently proven to be a promising technology when combined with anaerobic digestion (AD), mainly as a polishing strategy to increase the quality of the effluent, either by reducing its organic matter content or by removing nutrients . Different kinds of substrates have been used: landfill leachate, wastewater from potato‐processing industries, sludge, pig slurry, a mixture of swine manure and rice bran or molasses wastewater …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microbial fuel cells for polishing effluents of anaerobic digesters under inhibition, due to organic and nitrogen overloads

Cerrillo

Viñas

Blasi

2017

J. Chem. Technol. Biotechnol

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BACKGROUND: Bioelectrochemical systems have been proposed as a possible polishing step for anaerobic digestion (AD). They can also be useful to overcome AD instability in case of AD inhibition while, at the same time recovering ammonia. Continuous assays with a microbial fuel cell (MFC) fed with digested pig slurry were performed to evaluate its operation during malfunction periods of the AD reactor and its feasibility as a strategy to recover ammonia, either by introducing volatile fatty acid (VFA) pulses in the MFC or by inducing AD inhibition. A microbial community assessment was performed to study MFC changes during its operation when fed with the digestate. RESULTS:The MFC achieved COD removal efficiencies of 50% during AD inhibition, reaching a maximum ammonium removal of 31% (11.19 g N m -2 d -1 ). A high throughput 16S rRNA gene based sequencing assessment revealed that the anode biofilm was different from the digestate fed, showing a reduction in microbial population diversity in the anode after a 182-day-operation period with digested pig slurry. The main enriched populations in the anode belonged to Bacteroidetes (Flavobacteriaceae), Chloroflexi (fermentative bacteria Anaerolineaceae), Methanosarcinaceae and hydrogenotrophic methanogens belonging to Methanobacteriaceae. CONCLUSION: MFCs have proven to be a reliable technology to complement the operation of AD, improving the quality of the effluent and recovering ammonia, particularly during AD inhibition.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microbial fuel cells for polishing effluents of anaerobic digesters under inhibition, due to organic and nitrogen overloads

Cerrillo

Viñas

Blasi

2017

J. Chem. Technol. Biotechnol

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“…Additionally, promising approaches for the COD removal with MFCs are coupled processes such as the combination with anaerobic digesters [189]. Furthermore, Ren et al described the combination of four lab-scale MFC reactors (each 130 mL) with an anaerobic fluidized-bed membrane bioreactor [190].…”

Section: Microbial Fuel Cellmentioning

confidence: 99%

Current to Clean Water – Electrochemical Solutions for Groundwater, Water, and Wastewater Treatment

Simon

Stöckl

Becker

et al. 2018

Chemie Ingenieur Technik

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Electrochemical technologies for the treatment of industrial and municipal wastewaters, potable water, and groundwater, are presented, focusing on the main water constituents: inorganics, organics, micropollutants, and microorganisms. Removal of inorganic compounds by electrodialysis, electrocoagulation, and capacitive deionization as well as removal of organics and micropollutants by electrosorption, advanced oxidation processes, and anodic oxidation with boron‐doped diamond electrodes are reviewed. Electricity can be generated by degradation of organic compounds in microbial fuel cells and dehalogenation by cathodic reduction minimizes toxic substances in water. The disinfection of different types of water is also presented and it is shown that electrochemical methods offer versatile approaches to contribute to an sustainable future water management.

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“…Recently, the intergradation of AD and MFC has been studied to maximize the energy recovery [18] [21], minimize pollutants and recover inorganic nutrients in end products of waste treatments [22] [23]. AD efflux has provided Journal of Sustainable Bioenergy Systems electrochemically active microorganisms for anode reduction, and anode function is stable during the more than 300 d studies [21] [23] [24].…”

Section: Introductionmentioning

confidence: 99%

“…Current densities were 240 ± 5.4 mA/m 2 on d-1 before experiment started.MFCs were constructed with AD fluid, which was directly transferred from a dairy anaerobic digester, and cellulose as experimental substrates. MFCs have shown the utilization of AD efflux in electricity generation[22], therefore, in ad-dition to supplemented cellulose, AD fluid might include nutrients (electron donors) in AD-MFCs. Stable MFC operation during the experimental period was observed in both control and treatment groups.…”

mentioning

confidence: 99%

Development of a Consolidated Anaerobic Digester and Microbial Fuel Cell to Produce Biomethane and Electricity from Cellulosic Biomass Using Bovine Rumen Microorganisms

Chung¹,

Kang²,

Shin³

et al. 2019

JSBS

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Microbial fuel cells (MFCs) are bioelectrochemical systems that convert chemical energy contained in organic matter into electrical energy by using the catalytic (metabolic) activity of living microorganisms. Mediator-less two chamber H-type MFCs were constructed in the current study, using dairy digester microbial population as anode inocula to convert finely ground pine tree (Avicel) at 2% (w/v) to electricity. MFCs were placed at 37˚C and after the circuit voltage was stabilized on d9, bovine rumen microorganisms cultured anaerobically for 48 hrs in cellulose broth media were added to treatment group of MFC at 1% v/v dosage. MFC power and current across an external resistor were measured daily for 10 d. At the end of incubation on d19 head space gas and anode chamber liquid solutions were collected and analyzed for total gas volume and composition, and volatile fatty acids, respectively. Addition of enriched rumen microorganisms to anaerobic anode chamber increased cellulose digestibility and increased both CO 2 and methane production; however, it decreased the methane to CO 2 ratio. Over the experimental period, electricity generation was increased with rumen microorganism addition, and power density normalized to anode surface area was 17.6 to 67.2 mW/m 2 with average of 36.0 mW/m 2 in treatment, while control How to cite this paper:

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Coupling of anaerobic digester and microbial fuel cell for COD removal and ammonia recovery

Cited by 83 publications

References 22 publications

Microbial fuel cells for polishing effluents of anaerobic digesters under inhibition, due to organic and nitrogen overloads

Microbial fuel cells for polishing effluents of anaerobic digesters under inhibition, due to organic and nitrogen overloads

Current to Clean Water – Electrochemical Solutions for Groundwater, Water, and Wastewater Treatment

Development of a Consolidated Anaerobic Digester and Microbial Fuel Cell to Produce Biomethane and Electricity from Cellulosic Biomass Using Bovine Rumen Microorganisms

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