CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION Metadata

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Title

  • Main Title CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION

Creator

  • Author: Fabry, V.J.
    Creator Type: Personal

Contributor

  • Sponsor: United States
    Contributor Type: Organization

Publisher

  • Name: California State University San Marcos (United States)
    Place of Publication: United States

Date

  • Creation: 2004-10-30

Language

  • English

Description

  • Content Description: Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds or bioreactors to abate CO{sub 2} emissions from power plants.
  • Physical Description: 17 pages

Subject

  • Keyword: Greenhouse Effect
  • Keyword: Storage
  • Keyword: Fertilization
  • Keyword: Carbon Dioxide
  • Keyword: Magnesium Carbonates
  • Keyword: Production
  • Keyword: Ecosystems
  • Keyword: Power Plants
  • Keyword: Carbon Sequestration
  • Keyword: Calcium Carbonates
  • Keyword: Carbonates
  • Keyword: Carbon
  • Keyword: Cultivation
  • Keyword: Bioreactors
  • STI Subject Categories: 09 Biomass Fuels
  • Keyword: Algae
  • Keyword: Calcite

Source

  • Other Information: PBD: 30 Oct 2004

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: NONE
  • Grant Number: FC26-01NT41132
  • DOI: 10.2172/836208
  • Office of Scientific & Technical Information Report Number: 836208
  • Archival Resource Key: ark:/67531/metadc778618

Note

  • Display Note: OSTI as DE00836208