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

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
California Univ., Berkeley, CA (United States). Dept. of Civil Engineering
Sponsoring Org.:
USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
OSTI Identifier:
493389
Report Number(s):
DOE/PC/93204-T5
ON: DE97052880; TRN: 97:004328
DOE Contract Number:  
FG22-93PC93204
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 21 Mar 1996
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 09 BIOMASS FUELS; BIOMASS; PRODUCTION; CARBON DIOXIDE; AIR POLLUTION CONTROL; METABOLISM; WASTE PRODUCT UTILIZATION; ALGAE; CULTIVATION; COAL; ECONOMIC ANALYSIS; FEASIBILITY STUDIES; FLUE GAS; HARVESTING; PRICES; PROCESSING; PHOTOSYNTHESIS; COMBUSTION; CHLORELLA

Citation Formats

Benemann, J.R., and Oswald, W.J. Systems and economic analysis of microalgae ponds for conversion of CO{sub 2} to biomass. Final report. United States: N. p., 1996. Web. doi:10.2172/493389.
Benemann, J.R., & Oswald, W.J. Systems and economic analysis of microalgae ponds for conversion of CO{sub 2} to biomass. Final report. United States. doi:10.2172/493389.
Benemann, J.R., and Oswald, W.J. Thu . "Systems and economic analysis of microalgae ponds for conversion of CO{sub 2} to biomass. Final report". United States. doi:10.2172/493389. https://www.osti.gov/servlets/purl/493389.
@article{osti_493389,
title = {Systems and economic analysis of microalgae ponds for conversion of CO{sub 2} to biomass. Final report},
author = {Benemann, J.R. and Oswald, W.J.},
abstractNote = {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.},
doi = {10.2172/493389},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {3}
}