Domestic Wastewater Treatment as a Net Energy Producer–Can This be Achieved?
In seeking greater sustainability in water resources management, wastewater is now being considered more as a resource than as a wastea 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...
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| Veröffentlicht in: | Environmental science & technology 2011-09, Vol.45 (17), p.7100-7106 |
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| container_title | Environmental science & technology |
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| creator | McCarty, Perry L Bae, Jaeho Kim, Jeonghwan |
| description | In seeking greater sustainability in water resources management, wastewater is now being considered more as a resource than as a wastea 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. |
| doi_str_mv | 10.1021/es2014264 |
| format | Article |
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Sci. Technol</addtitle><description>In seeking greater sustainability in water resources management, wastewater is now being considered more as a resource than as a wastea 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.</description><subject>Anaerobiosis</subject><subject>Applied sciences</subject><subject>Bioelectric Energy Sources</subject><subject>Biological and medical sciences</subject><subject>Biological treatment of waters</subject><subject>Bioreactors</subject><subject>Biotechnology</subject><subject>Conservation of Energy Resources - methods</subject><subject>Electricity</subject><subject>Energy</subject><subject>Environment and pollution</subject><subject>Exact sciences and technology</subject><subject>Fertilizers</subject><subject>Fuel cells</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Miscellaneous</subject><subject>Natural energy</subject><subject>Nitrogen</subject><subject>Other wastewaters</subject><subject>Pollution</subject><subject>Sewage</subject><subject>Waste Disposal, Fluid - instrumentation</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Wastewaters</subject><subject>Wastewaters reuse. 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| identifier | ISSN: 0013-936X |
| ispartof | Environmental science & technology, 2011-09, Vol.45 (17), p.7100-7106 |
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| language | eng |
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| subjects | Anaerobiosis Applied sciences Bioelectric Energy Sources Biological and medical sciences Biological treatment of waters Bioreactors Biotechnology Conservation of Energy Resources - methods Electricity Energy Environment and pollution Exact sciences and technology Fertilizers Fuel cells Fundamental and applied biological sciences. Psychology Industrial applications and implications. Economical aspects Miscellaneous Natural energy Nitrogen Other wastewaters Pollution Sewage Waste Disposal, Fluid - instrumentation Waste Disposal, Fluid - methods Wastewaters Wastewaters reuse. Miscellaneous Water resources management Water treatment Water treatment and pollution |
| title | Domestic Wastewater Treatment as a Net Energy Producer–Can This be Achieved? |
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