Journal ArticleDOI
Domestic Wastewater Treatment as a Net Energy Producer–Can This be Achieved?
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TLDR
Newer membrane processes coupled with complete anaerobic treatment of wastewater offer the potential for wastewater treatment to become a net generator of energy, rather than the large energy consumer that it is today.Abstract:
In seeking greater sustainability in water resources management, wastewater is now being considered more as a resource than as a waste-a resource for water, for plant nutrients, and for energy. Energy, the primary focus of this article, can be obtained from wastewater's organic as well as from its thermal content. Also, using wastewater's nitrogen and P nutrients for plant fertilization, rather than wasting them, helps offset the high energy cost of producing synthetic fertilizers. Microbial fuel cells offer potential for direct biological conversion of wastewater's organic materials into electricity, although significant improvements are needed for this process to be competitive with anaerobic biological conversion of wastewater organics into biogas, a renewable fuel used in electricity generation. Newer membrane processes coupled with complete anaerobic treatment of wastewater offer the potential for wastewater treatment to become a net generator of energy, rather than the large energy consumer that it is today.read more
Citations
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Journal ArticleDOI
Conversion of wastes into bioelectricity and chemicals by using microbial electrochemical technologies.
Bruce E. Logan,Korneel Rabaey +1 more
TL;DR: In this paper, the key advances that will enable the use of exoelectrogenic microorganisms to generate biofuels, hydrogen gas, methane, and other valuable inorganic and organic chemicals are reviewed.
Journal ArticleDOI
Membrane-based processes for sustainable power generation using water
TL;DR: Water has always been crucial to combustion and hydroelectric processes, but it could become the source of power in membrane-based systems that capture energy from natural and waste waters, allowing both wastewater treatment and power production.
Journal ArticleDOI
A new model for electron flow during anaerobic digestion: direct interspecies electron transfer to Methanosaeta for the reduction of carbon dioxide to methane
Amelia-Elena Rotaru,Pravin Malla Shrestha,Fanghua Liu,Minita Shrestha,Devesh Shrestha,Mallory Embree,Karsten Zengler,Colin Wardman,Kelly P. Nevin,Derek R. Lovley +9 more
TL;DR: In this article, a metatranscriptomic analysis of methanogenic aggregates from a brewery wastewater digester, coupled with fluorescence in situ hybridization with specific 16S rRNA probes, revealed that Methanosaeta species were the most abundant and metabolically active methanogens.
Journal ArticleDOI
Towards sustainable wastewater treatment by using microbial fuel cells-centered technologies
Wen-Wei Li,Han-Qing Yu,Zhen He +2 more
TL;DR: In this paper, the authors proposed integration of MFCs with other treatment technologies to form an MFC-centered treatment scheme based on thoroughly analyzing the challenges and opportunities, and discuss future efforts to be made for realizing sustainable wastewater treatment.
Journal ArticleDOI
Fouling in membrane bioreactors: An updated review
TL;DR: This review summarized the updated information on foulants composition and characteristics in MBRs, which greatly improves the understanding of fouling mechanisms, and the emerging fouling control strategies are comprehensively reviewed.
References
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Journal ArticleDOI
Microbial Fuel Cells: Methodology and Technology†
Bruce E. Logan,Bert Hamelers,René A. Rozendal,Uwe Schröder,Jurg Keller,Stefano Freguia,P. Aelterman,Willy Verstraete,Korneel Rabaey +8 more
TL;DR: A review of the different materials and methods used to construct MFCs, techniques used to analyze system performance, and recommendations on what information to include in MFC studies and the most useful ways to present results are provided.
Book Chapter
Changes in Atmospheric Constituents and in Radiative Forcing
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Journal ArticleDOI
Electricity generation using an air-cathode single chamber microbial fuel cell in the presence and absence of a proton exchange membrane.
Hong Liu,Bruce E. Logan +1 more
TL;DR: An analysis based on available anode surface area and maximum bacterial growth rates suggests that mediatorless MFCs may have an upper order-of-magnitude limit in power density of 10(3) mW/m2.
Journal ArticleDOI
A review of the substrates used in microbial fuel cells (MFCs) for sustainable energy production.
TL;DR: The various substrates that have been explored in MFCs so far, their resulting performance, limitations as well as future potential substrates are reviewed.
Journal ArticleDOI
Reactive nitrogen and the world: 200 years of change.
TL;DR: The substantial regional variability in reactive nitrogen creation, its degree of distribution, and the likelihood of increased rates of reactive-N formation (especially in Asia in the future creates a situation that calls for the development of a Total Reactive Nitrogen Approach that will optimize food and energy production and protect environmental systems.