Read all news and events this project has received funding from the european unions horizon 2020 research and innovation programme under grant agreement no. Configurations, optimization and applications, abstract seawater could be a potential source of freshwater to manage the intensified demand of drinking water for new generations. Comparative performance of microbial desalination cells. The recent techniques for desalination and wastewater treatment are energy intensive and unsustainable. Microbial desalination cell mdc is the integration of a mfc and an electrodialysis ed cell in order to treat wastewater and desalinate seawater. Microbial desalination cell mdc has been developed for removing water salinity, electricity generation, and wastewater management.
Microbial desalination cell for low energy drinking water. As a biological system, the baseline force that drives its performance is the presence of exoelectrogens in the anode chamber. Essay about microbial desalination cells 1293 words. A microbial desalination cell mdc is able to desalinate salt water without energy consumption whilst generating bioenergy. Paper open access study on a new algalinhibition based. Microbial electrodialysis cell for simultaneous water desalination and hydrogen gas production maha mehanna, patrick d. Stacked microbial desalination cells to enhance water. An energyefficient and sustainable, microbial electrolysis. Mdc technology could be employed to provide freshwater with lowenergy input, for example, in remote areas where organic wastes i.
However, current mdc systems transfer salts to the treated wastewater and affect wastewaters beneficial use. Current microbial desalination cell mdc performances are evaluated with chemical catalysts such as ferricyanide, platinum catalyzed aircathodes or aerated cathodes. The main focus of the logan lab is the development of new renewable energy technologies, such as microbial fuel cells, thermally regenerated batteries, and concentration difference cells, for achieving an energy sustainable water infrastructure. Recently, advances in desali nation technology have led to the introduction of microbes in a process known as microbial desalination cells mdcs. Advancing microbial desalination cell towards practical applications qingyun ping abstract public water and energy are the worlds most valuable resources. Mdcs integrate microbial fuel cells mfc and electrodialysis processes in an energysustainable way.
Mfc systems can be applied to the generation of electricity at watersediment interfaces in the environ. Simultaneous water purification and energy production in a microbial desalination cell abdelsalam elawwad1, mostafa ragab1 1environmental engineering dept. The recent discovery of microbial desalination cells mdc has drawn great attention because it provides. Mfcs have various practical applications such as in breweries, domestic wastewater treatment, desalination plants, hydrogen production, remote sensing, and pollution remediation, and they can be used as. Abdulsalamalhadidi fujifilm manufacturing europe b. This technology uses the organic contaminants present in wastewater or biomass as the energy source. It produces electricity energy while removing contaminants or desalination 45. Pdf fundamentals of microbial desalination cell researchgate.
The mdc produced a maximum of 2 wm 2 31 wm3 while at the same time removing about 90% of the salt in a single desalination cycle. Water quality water quality is a term used to describe the chemical. This chapter discusses microbial desalination cell mdc technology for removal of salinity in water, electricity generation, and wastewater management. Using microbial desalination cells to reduce water salinity. Mdc technology can be used for applications such as sea water. Nov 23, 2015 a microbial desalination cell mdc could desalinate salt water without energy consumption and simultaneously generate bioenergy. A microbial desalination cell mdc is a new method to reduce the salinity of one solution while generating electrical power from organic matter and bacteria in another anode solution. In this study, synthetic samples were provided with concentration of 25, 50, 75, 100 mgl ni and pb. Use of a literscale microbial desalination cell as a platform to.
Anions and cations, derived from salt solution filled in the desalination chamber between the anode and cathode, move to the anode and cathode chambers under the force of electrical field, respectively. Previously mdcs used abiotic cathodes, which are restricted in application by high operating costs and low levels of sustainability whereas, in the present study, an aerobic biocathode consisting of carbon felt and. Mdc is briefly composed of an anode compartment, a desalination compartment and a cathode compartment. Microbial desalination cell for low energy drinking water production author dr. A microbial fuel cell mfc, or microbial desalination cell, is a bio electrochemical system that drives an electric current by using bacteria and mimicking bacterial interactions found in nature. The use of microbial fuel cells to generate electrical current is increasingly being seen as a viable source of renewable energy production. Enhancing biodegradation and energy generation via.
The trifunctional purpose of microbial desalination cell mdc has shown a great promise in our current scarcity of water, an increase in water pollution and the high cost of electricity production. A microbial desalination cell mdc is a biological electrochemical system that implements the use of electroactive bacteria to power desalination of water in situ, resourcing the natural anode and cathode gradient of the electroactive bacteria and thus creating an internal supercapacitor. An integrated potentiostat measures the generated power. In this work, the electrodes of a microbial desalination cell mdc are. The proposal objective is to design a microbial desalination fuel cell mdfc as a pretreatment to the current seawater desalination plant that will provide sustainable freshwater supply for human consumption at minimal energy cost. Microbial fuel cells are a developing technology that has been utilized for studying microbial physiology in terms of electron and proton transfer 46.
C catalyst was prepared by using nicarbazin ncb as the organic precursor through a sacrificial support method ssm. Final report microbial desalination fuel cell as a. The microbial desalination cell mdc is a newlydeveloped technology which integrates the microbial fuel cell mfc process and electrodialysis for wastewater treatment, water desalination and. Microbial desalination cell outline various mdc configurations background stack mdc biocathode mdc ionexchange coupled mdc capacitive mdc introduction to microbial desalination cell mdc various mdc configurations pretreatment alternatives and evaluation. By using the energy provided by the oxidation of organic matter, contained in the wastewater, this system drives the. Exoelectrogenic bacteria that power microbial fuel cells.
Microbial desalination cells mdcs have attained substantial importance in the recent years. Microbial desalination cell mdc, a trifunctional modern technology, developed for the treatment of wastewater, desalination, and production of electrical energy, was first proposed in 2009 by cao. This method depends on the bioelectrochemical systems, the reactor is called microbial desalination cell mdc. Performance of exoelectrogenic bacteria used in microbial. Mdc emerged from the microbial fuel cell mfc and electrodialysis had recently received a significant consideration for desalination and wastewater treatment as an environmentally friendly technology. Microbial desalination cells mdcs use the electrical current generated by microbes to simultaneously treat wastewater, desalinate water, and produce bioenergy. Stacked microbial desalination cells to enhance water desalination efficiency. A new method for water desalination using microbial desalination. Nov 28, 2016 microbial desalination cell mdc is a new method of desalination. The key words used in literature search include microbial desalination cell, microbial electrochemical desalination, wastewater treatment using microbial desalination cell, and optimization of microbial desalination cell. Using microbial desalination cells to reduce water. Removal efficiency of each metal was analyzed after 60, 90, 120 min, psychrophilic, mesophilic, thermophilic and 34, 45, 56 mgl dissolved oxygen. Its energy is supplied through microbial metabolism of organic materials. A microbial desalination cell mdc could desalinate salt water without energy consumption and simultaneously generate bioenergy.
The microbial desalination cell mdc is a technology based on the microbial fuel cell mfc as a possible method to desalinate brine without energy demand 7. Paper open access study on a new algalinhibition based on. Microbial fuel desalination cell by sara azzam on prezi. Substantial reductions in the salinity can require much larger volumes of the anode solution than the saline water. Microbial desalination cell mdc is a new and green technology for water desalination. Simultaneous water purification and energy production in a. Logan department of civil and environmental engineering, the pennsylvania state university, university park, pennsylvania 16802, united states received july 28, 2010. Microbial desalination cells mdc is one of the methods used in salt water desalination process. In this study, desalination rate, organic matter removal and energy production in the reactors with and without desalination function were compared.
A new method for water desalination using microbial. Seawater could be a potential source of freshwater to manage the intensified demand of drinking water for new generations. Current water desalination techniques are energy intensive and some use membranes operated at high pressures. It is shown here that water desalination can be accomplished without electrical energy input or high water pressure by using a source of organic matter as the fuel to desalinate water. Advancing microbial desalination cell towards practical. Microbial desalination cell mdc that adds the function of desalination to the mfcs existing ability to generate electricity directly from cellulosic feedstocks. Study of the desalination efficiency for different. Therefore, an integrated and sustainable approach is essential to achieve costeffective desalination through wastewater treatment. In addition, mdc technology has been proposed as pre. Conventional desalination plant, municipal water supply and wastewater treatment system are among the most electricityintensive facilities. Mides microbialdesalination for low energy drinking water.
The microbial desalination cell mdc is known as a newly developed technology for water and wastewater treatment. Mar 30, 2009 the use of microbial fuel cells to generate electrical current is increasingly being seen as a viable source of renewable energy production. Substantial reductions in the salinity can require much larger volumes of the anode solution than the saline water, but any reduction of salinity will benefit the energy efficiency of a downstream reverse. Analysis of longterm performance and microbial community. Microbial desalination cell is a device that uses microbes to degrade organic matter and convert chemical energy into electrical energy. Anoxicbiocathode microbial desalination cell as a new.
In this progress article, bruce logan highlights recent. Microbial desalination cell mdc has emerged as a promising technique to capture the chemical energy stored in wastewater directly for desalination, which has the potential to solve the high energy consumption issue in desalination industry as well as. This environmentallyfriendly process produces electricity without the combustion of fossil fuels. Microbial fuel cells mfcs are devices that use living microbes as catalysts for the conversion of organic fuels into electricity, and these devices have recently attracted extensive attention as sustainable bioenergy systems. Additional research areas include electrochemical desalination and ammonia removal and recovery. Bioelectrochemical systems are emerging as a promising and friendly alternative to convert the energy stored in wastewater directly into electricity by microorganisms and utilize it in situ to drive desalination. In search for sustainable and low cost desalination alternatives. Throughout its development trend, the use of microbial desalination cell in the. Microbial desalination cell mdc, a trifunctional modern technology, developed for the treatment of wastewater, desalination, and production of. Sustainable desalination using a microbial capacitive. The microbial desalination cell mdc is a newlydeveloped technology which integrates the microbial fuel cell mfc process and. The caspian sea is one of the largest water sources located in the north of iran. Pdf microbial desalination cells mdcs are bioelectrochemical tools which exploit organic matter in wastewater to use as an energy source.
Using bacterial catalyst in the cathode of microbial. Pdf using microbial desalination cells to reduce water. A first guided tour of the sights and sounds of the microbial desalination cell in operation at the mides. In this study, the longterm operation 5500 h performance of a biocathode mdc was investigated in which the power density. Due to free energy requirements and environmentally friendly technologies, mdc. Microbial electrodialysis cell for simultaneous water.
This process is similar to water electrodialysis but uses bacteria as the source of energy rather than an external source. Removal efficiency of nickel and lead from industrial. Kipt kharkov institute of physics llnl lawrence livermore national laboratory mbest monterey bay education science and technology center mec microbial electrolysis cell meds microbial electrolysisdeionization system. Microbial desalination cell mdc is a new method of desalination. Microbial desalination cell mdc, however, can achieve wastewater treatment, desalination for fresh water production, and energy generation simultaneously.
A conventional mdc is a threechamber system with ionexchange membranes iems, which has a desalination chamber in the middle, as described in figure 1. All of these methods improve power generation potential in mdcs, however, they are not preferable for large scale applications due to cost, energy and environmental toxicity issues. Microbial desalination cells mdcs are modified mi crobial fuel cells. Pdf photosynthetic microbial desalination cells pmdcs.
A microbial desalination cell mdc is derived from the integration of an mfc and electrodialysis process. The high energy consumption and environmental impacts of present desalination process has put mounts pressure to search for alternative desalination techniques. To better understand such processes, we propose the development of an anoxic biocathode microbial desalination cell for the conversion of carbon and nitrogenrich wastewaters. Microbial desalination cell mdc represents an innovative technology which accomplishes simultaneous desalination and wastewater treatment without external energy input. Over the last few years, the conventional threechamber. Pdf photosynthetic microbial desalination cells pmdcs for. They provide a medium for the study of complex microbial systems like those encountered in ruminant production, as well as the opportunity for developing novel approaches to altering the dynamics within those systems. Pdf the microbial desalination cell mdc is a newlydeveloped technology which integrates the microbial fuel cell mfc process and electrodialysis. Essay about microbial desalination cells 1293 words bartleby. A microbial fuel cell was modified by placing two membranes between the anode and cathode, creating a. A microbiologist is a specialist in microbiology and these related topics. Enhancing biodegradation and energy generation via roughened. Microbial desalination cells with efficient platinum. Desalination and power generation of caspian sea by.
The potency of threechambered microbial desalination cells. This process provides a driving force through microbial metabolism of organic matter rahimnejad et al. Their presence in the anodic chamber of mdc systems enables the. Dwpr desalination and water purification research ewp removal of tds using ewp from synthetic water. Frontiers comparative performance of microbial desalination. Microbial fuel cells mfcs use bacteria to convert organic waste material into electrical energy. Microbial desalination cell pilot convergence industry b.
It produces electricity energy while removing contaminants or desalination45. Microbial desalination cell mdc is a new method to obtain clean water from brackish water using electricity generated from organic matters by exoelectrogenic bacteria. The first mfcs, demonstrated in the early 20th century, used a mediator. Compared with an abiotic cathode mdc, an aerobic biocathode mdc is more sustainable and is less expensive to operate. A revolutionary new method called mdcs microbial desalination cells could potentially desalinate water and produce energy depending on the design or set up of the cell. The recent emerging technology, microbial desalination cell mdc, however, can achieve wastewater treatment, desalination for fresh water production, and energy generation simultaneously.
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