Systems and economic analysis of microalgae ponds for conversion of CO{sub 2} to biomass. Final report

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There is growing evidence that global warming could become a major global environmental threat during the 21st century. The precautionary principle commands preventive action, at both national and international levels, to minimize this potential threat. Many near-term, relatively inexpensive, mitigation options are available. In addition, long-term research is required to evaluate and develop advanced, possibly more expensive, countermeasures, in the eventuality that they may be required. The utilization of power plant CO{sub 2} and its recycling into fossil fuel substitutes by microalgae cultures could be one such long-term technology. Microalgae production is an expanding industry in the U.S., with three ... continued below

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214 p.

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Benemann, J.R. & Oswald, W.J. March 21, 1996.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 75 times , with 4 in the last month . More information about this report can be viewed below.

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Description

There is growing evidence that global warming could become a major global environmental threat during the 21st century. The precautionary principle commands preventive action, at both national and international levels, to minimize this potential threat. Many near-term, relatively inexpensive, mitigation options are available. In addition, long-term research is required to evaluate and develop advanced, possibly more expensive, countermeasures, in the eventuality that they may be required. The utilization of power plant CO{sub 2} and its recycling into fossil fuel substitutes by microalgae cultures could be one such long-term technology. Microalgae production is an expanding industry in the U.S., with three commercial systems (of approximately 10 hectare each) producing nutriceuticals, specifically beta-carotene, extracted from Dunaliella, and Spirulina biomass. Microalgae are also used in wastewater treatment. Currently production costs are high, about $10,000/ton of algal biomass, almost two orders of magnitude higher than acceptable for greenhouse gas mitigation. This report reviews the current state-of-the-art, including algal cultivation and harvesting-processing, and outlines a technique for achieving very high productivities. Costs of CO{sub 2} mitigation with microalgae production of oils ({open_quotes}biodiesel{close_quotes}) are estimated and future R&D needs outlined.

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214 p.

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OSTI as DE97052880

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  • Other Information: PBD: 21 Mar 1996

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  • Other: DE97052880
  • Report No.: DOE/PC/93204--T5
  • Grant Number: FG22-93PC93204
  • DOI: 10.2172/493389 | External Link
  • Office of Scientific & Technical Information Report Number: 493389
  • Archival Resource Key: ark:/67531/metadc680796

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 21, 1996

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  • July 25, 2015, 2:21 a.m.

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  • Nov. 10, 2015, 9:37 p.m.

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Benemann, J.R. & Oswald, W.J. Systems and economic analysis of microalgae ponds for conversion of CO{sub 2} to biomass. Final report, report, March 21, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc680796/: accessed December 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.