The flat-plate plant-microbial fuel cell: the effect of a new design on internal resistances

Biotechnology for Biofuels

Marjolein Helder²  David PBTB Strik²  Hubertus VM Hamelers¹  Cees JN Buisman¹ 

[1] Wetsus– Centre of excellence for sustainable water technology, Agora 1, Leeuwarden, The Netherlands

[2] Wageningen University - Sub-department of environmental technology, PO box 17, Wageningen 6700 AA, The Netherlands

关键词: Sustainable electricity;    Spartina anglica;    Root growth;    Internal resistance;    Flat-plate;    Design;    Plant-microbial fuel cell;   

Others  :  798224
DOI  :  10.1186/1754-6834-5-70

 received in 2012-06-12, accepted in 2012-07-24,  发布年份 2012

【 摘 要 】

Due to a growing world population and increasing welfare, energy demand worldwide is increasing. To meet the increasing energy demand in a sustainable way, new technologies are needed. The Plant-Microbial Fuel Cell (P-MFC) is a technology that could produce sustainable bio-electricity and help meeting the increasing energy demand. Power output of the P-MFC, however, needs to be increased to make it attractive as a renewable and sustainable energy source. To increase power output of the P-MFC internal resistances need to be reduced. With a flat-plate P-MFC design we tried to minimize internal resistances compared to the previously used tubular P-MFC design. With the flat-plate design current and power density per geometric planting area were increased (from 0.15 A/m² to 1.6 A/m² and from 0.22 W/m² to and 0.44 W/m²)as were current and power output per volume (from 7.5 A/m³ to 122 A/m³ and from 1.3 W/m³ to 5.8 W/m³). Internal resistances times volume were decreased, even though internal resistances times membrane surface area were not. Since the membrane in the flat-plate design is placed vertically, membrane surface area per geometric planting area is increased, which allows for lower internal resistances times volume while not decreasing internal resistances times membrane surface area. Anode was split into three different sections on different depths of the system, allowing to calculate internal resistances on different depths. Most electricity was produced where internal resistances were lowest and where most roots were present; in the top section of the system. By measuring electricity production on different depths in the system, electricity production could be linked to root growth. This link offers opportunities for material-reduction in new designs. Concurrent reduction in material use and increase in power output brings the P-MFC a step closer to usable energy density and economic feasibility.

【 授权许可】

   
2012 Helder et al.; licensee BioMed Central Ltd.

【 图 表 】

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【 参考文献 】

• [1]Sheffield J: World population growth and the role of annual energy use per capita. Technol Forecast Soc Change 1998, 59:55-87.
• [2]Asif M, Muneer T: Energy supply, its demand and security issues for developed and emerging economies. Renew Sustain Energy Rev 2007, 11:1388-1413.
• [3]Hill J, Nelson E, Tilman D, Polasky S, Tiffany D: Environmental, economic, and energetic costs and benefits of biodiesel and ethanol biofuels. Proc Natl Acad Sci USA 2006, 103:11206-11210.
• [4]Fargione J, Hill J, Tilman D, Polasky S, Hawthorne P: Land clearing and the biofuel carbon debt. Science 2008, 319:1235-1238.
• [5]Huesemann MH: Can advances in science and technology prevent global warming? A critical review of limitations and challenges. Mitig Adapt Strat Glob Chang 2006, 11:539-577.
• [6]Kaku N, Yonezawa N, Kodama Y, Watanabe K: Plant/microbe cooperation for electricity generation in a rice paddy field. Appl Microbiol Biotechnol 2008, 79:43-49.
• [7]De Schamphelaire L, Van Den Bossche L, Hai SD, Hofte M, Boon N, Rabaey K, Verstraete W: Microbial fuel cells generating electricity from rhizodeposits of rice plants. Environ Sci Technol 2008, 42:3053-3058.
• [8]Strik DPBTB, Hamelers HVM, Snel JFH, Buisman CJN: Green electricity production with living plants and bacteria in a fuel cell. Int J Energ Res 2008, 32:870-876.
• [9]Helder M, Strik DPBTB, Hamelers HVM, Kuhn AJ, Blok C, Buisman CJN: Concurrent bio-electricity and biomass production in three Plant-Microbial Fuel Cells usingSpartina anglica, Arundinella anomala and Arundo donax. Bioresour Technol 2010, 101:3541-3547.
• [10]Strik DPBTB, Timmers RA, Helder M, Steinbusch KJJ, Hamelers HVM, Buisman CJN: Microbial solar cells: applying photosynthetic and electrochemically active organisms. Trends Biotechnol 2011, 29:41-49.
• [11]Timmers RA, Strik DPBTB, Hamelers HVM, Buisman CJN: Long-term performance of a plant microbial fuel cell with Spartina anglica. Appl Microbiol Biotechnol 2010, 86:973-981.
• [12]Strik DPBTB, Hamelers HVM, Snel JFH, Buisman CJN: Green electricity production with living plants and bacteria in a fuel cell. Int J Energ Res 2008., 10.1002
• [13]Helder M, Strik DPBTB, Hamelers HVM, Kuijken RCP, Buisman CJN: New plant-growth medium for increased power output of the Plant-Microbial Fuel Cell. Bioresource Technology 2012, 104:417-423.
• [14]Timmers RA, Strik DPBTB, Hamelers HVM, Buisman CJN: Characterization of the internal resistance of a plant microbial fuel cell. Electrochimica Acta 2012. article in press
• [15]Logan BE, Hamelers B, Rozendal R, Schröder U, Keller J, Freguia S, Aelterman P, Verstraete W, Rabaey K: Microbial fuel cells: methodology and technology. Environ Sci Technol 2006, 40:5181-5192.
• [16]Fan Y, Sharbrough E, Liu H: Quantification of the internal resistance distribution of microbial fuel cells. Environ Sci Technol 2008, 42:8101-8107.
• [17]Hamelers HVM, Ter Heijne A, Sleutels THJA, Jeremiasse AW, Strik DPBTB, Buisman CJN: New applications and performance of bioelectrochemical systems. Appl Microbiol Biotechnol 2010, 85:1673-1685.
• [18]Kuzyakov Y: Priming effects: interactions between living and dead organic matter. Soil Biol Biochem 2010, 42:1363-1371.
• [19]Pausch J, Kuzyakov Y: Photoassimilate allocation and dynamics of hotspots in roots visualized by 14 C phosphor imaging. J Plant Nutr Soil Sci 2011, 174:12-19.
• [20]Rozendal RA, Hamelers HVM, Rabaey K, Keller J, Buisman CJN: Towards practical implementation of bioelectrochemical wastewater treatment. Trends Biotechnol 2008, 26:450-459.
• [21]Harnisch F, Schröder U: From MFC to MXC: Chemical and biological cathodes and their potential for microbial bioelectrochemical systems. Chem Soc Rev 2010, 39:4433-4448.
• [22]Blossfeld S, Perriguey J, Sterckeman T, Morel JL, Lösch R: Rhizosphere pH dynamics in trace-metal-contaminated soils, monitored with planar pH optodes. Plant Soil 2010, 330:173-184.
• [23]Sleutels THJA, Hamelers HVM, Rozendal RA, Buisman CJN: Ion transport resistance in microbial electrolysis cells with anion and cation exchange membranes. Int J Hydrogen Energ 2009, 34:3612-3620.