Microbial desalination cells for improved performance in wastewater treatment, electricity production, and desalination

Luo, Haiping; Xu, Pei; Roane, Timberley M.; Jenkins, Peter E.; Ren, Zhiyong Jason

doi:10.1016/j.biortech.2011.11.098

Cited by 211 publications

(101 citation statements)

References 31 publications

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“…Luo et al (2011) have successfully tested the MDC by utilizing domestic wastewater as a substrate to carry out the desalination process. Other waste that can be used is tempe wastewater.…”

Section: Introductionmentioning

confidence: 99%

Effect of Methylene Blue Addition as a Redox Mediator on Performance of Microbial Desalination Cell by Utilizing Tempe Wastewater

Zuhri¹,

Arbianti²,

Utami³

et al. 2016

IJTech

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The microbial desalination cell (MDC) is a modification of the microbial fuel cell (MFC) system. The microbial desalination cell is a sustainable technology to desalinate saltwater by directly utilizing the electrical power generated by bacteria during the oxidation process of organic matter. In this study, tempe wastewater will be used as a substrate. Methylene blue (MB) at concentrations of 100 μM, 200 μM, and 400 μM in the anolyte is added as a redox mediator, and the effect on electricity production and desalination performance are evaluated. The average power density increases by 27.30% and 54.54% at MB concentrations of 100 μM and 200 μM, respectively. On the other hand, the increase of the MB concentration in the anolyte results in a decrease in the salt removal percentage. The observation made using a scanning electron microscope showed the presence of MB adsorption on the surface of the anion exchange membrane (AEM) and is suspected to be the cause of the disruption of anion transfer between MDC chambers causing a decrease in the salt removal percentage.

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“…Luo et al (2011) have successfully tested the MDC by utilizing domestic wastewater as a substrate to carry out the desalination process. Other waste that can be used is tempe wastewater.…”

Section: Introductionmentioning

confidence: 99%

Effect of Methylene Blue Addition as a Redox Mediator on Performance of Microbial Desalination Cell by Utilizing Tempe Wastewater

Zuhri¹,

Arbianti²,

Utami³

et al. 2016

IJTech

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“…The first concept of BES was proposed in 1931 [7], and in the past decade the BES has been greatly advanced from both fundamental research and technological development. For wastewater treatment, BES is studied mainly in three aspects [8]: (1) capturing the electrical power directly from organic contaminants in microbial fuel cells (MFCs) [9,10]; (2) harvesting the value-added products (e.g., H2, CH4, high-quality water) in microbial electrolysis cells (MECs), microbial electrosynthesis cells (MESs), or microbial desalination cells (MDCs) [11][12][13][14]; and (3) removing specific contaminants (heavy metal, perchlorate, etc. ), for instance, microbial remediation cells (MRCs) [15,16].…”

Section: Introductionmentioning

confidence: 99%

When Bioelectrochemical Systems Meet Forward Osmosis: Accomplishing Wastewater Treatment and Reuse through Synergy

Qin

Yuan

et al. 2014

Water

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Bioelectrochemical systems (BES) and forward osmosis (FO) are two emerging technologies with great potential for energy-efficient water/wastewater treatment. BES takes advantage of microbial interaction with a solid electron acceptor/donor to accomplish bioenergy recovery from organic compounds, and FO can extract high-quality water driven by an osmotic pressure. The strong synergy between those two technologies may complement each other and collaboratively address water-energy nexus. FO can assist BES with achieving water recovery (for future reuse), enhancing electricity generation, and supplying energy for accomplishing the cathode reactions; while BES may help FO with degrading organic contaminants, providing sustainable draw solute, and stabilizing water flux. This work has reviewed the recent development that focuses on the synergy between BES and FO, analyzed the advantages of each combination, and provided perspectives for future research. The findings encourage further investigation and development for efficient coordination between BES and FO towards an integrated system for wastewater treatment and reuse. OPEN ACCESSWater 2015, 7 39

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“…chlorinated compounds, denitrification, and uranium stabilization). [44][45][46][47] Even though MFCs are greatly limited for their application in industrial scale the initial research in this field has built a basis of knowledge about microbe-electrode-interactions that is the cornerstone for many recent advances in electro-microbiology. The demand of overcoming limitations of abiotic cathodes within MFCs created the first idea of microbes growing on cathodes.…”

Section: Microbial Fuel Cellsmentioning

confidence: 99%

Understanding extracellular electron transport of industrial microorganisms and optimization for production application

Kracke¹

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Microbial electrosynthesis (MES) and electro-fermentation are novel approaches to increase microbial production by stimulating the metabolism of the cells electrically. The technique is still in its infancy and while already hyped as promising method to convert CO 2 or cheap carbon sources and electrical energy into valuable chemicals and fuels, little is known about its true potential. This project uses a combination of in silico and in vivo approaches to gather novel information about the benefits and limitations of microbial electrosynthesis as well as its fundamental mechanisms.Understanding microbial electron transport mechanisms is the key to optimization of any bioelectrochemical technology. Therefore, this work analyses the different electron transport chains that nature offers for organisms such as metal respiring bacteria and acetogens, but also standard biotechnological organisms currently used in bioproduction.Special focus lies on the essential connection of redox and energy metabolism, which is often ignored when studying bioelectrochemical systems. The possibility of extracellular electron exchange at different points in each organism is discussed regarding required redox potentials and effect on cellular redox and energy levels. Key compounds such as electron carriers (e.g. cytochromes, ferredoxins, quinones, flavins) are identified and analysed regarding their possible role in electrode-microbe-interactions.Based on these findings a stoichiometric network analysis is performed analysing the effect of electrical stimulation on the microbial metabolism theoretically. Escherichia coli is used as model organism for production with the aim to identify target processes for MES.For the first time, 20 different valuable products were screened for their potential to show increased yields during anaerobic electrically enhanced fermentation. Surprisingly it was found that an increase in product formation by electrical enhancement is not necessarily dependent on the degree of reduction of the product but rather the metabolic pathway it is derived from. Contrary to the usual assumption a reduced product would always require electron supply by a cathode this study shows that a complex metabolic analysis is needed to identify the overall redox state of each process. A variety of beneficial processes is presented with product yield increases of maximal +36% in reductive and +84% in oxidative fermentations and final theoretical product yields up to 100%. This includes compounds that are already produced at industrial scale such as succinic acid, ii lysine and diaminopentane as well as potential novel bio-commodities such as isoprene, para-hydroxybenzoic acid and para-aminobenzoic acid. Furthermore, it is shown that the way of electron transport has major impact on achievable biomass and product yields. The coupling of electron transport to energy conservation could be identified as crucial for most processes.The in vivo approach of this project introduces the development of a standardised reactor platfor...

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Microbial desalination cells for improved performance in wastewater treatment, electricity production, and desalination

Cited by 211 publications

References 31 publications

Effect of Methylene Blue Addition as a Redox Mediator on Performance of Microbial Desalination Cell by Utilizing Tempe Wastewater

Effect of Methylene Blue Addition as a Redox Mediator on Performance of Microbial Desalination Cell by Utilizing Tempe Wastewater

When Bioelectrochemical Systems Meet Forward Osmosis: Accomplishing Wastewater Treatment and Reuse through Synergy

Understanding extracellular electron transport of industrial microorganisms and optimization for production application

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