Document Detail

Simultaneous flue gas bioremediation and reduction of microalgal biomass production costs.
MedLine Citation:
PMID:  19096837     Owner:  NLM     Status:  MEDLINE    
A flue gas originating from a municipal waste incinerator was used as a source of CO(2) for the cultivation of the microalga Chlorella vulgaris, in order to decrease the biomass production costs and to bioremediate CO(2) simultaneously. The utilization of the flue gas containing 10-13% (v/v) CO(2) and 8-10% (v/v) O(2) for the photobioreactor agitation and CO(2) supply was proven to be convenient. The growth rate of algal cultures on the flue gas was even higher when compared with the control culture supplied by a mixture of pure CO(2) and air (11% (v/v) CO(2)). Correspondingly, the CO(2) fixation rate was also higher when using the flue gas (4.4 g CO(2) l(-1) 24 h(-1)) than using the control gas (3.0 g CO(2) l(-1) 24 h(-1)). The toxicological analysis of the biomass produced using untreated flue gas showed only a slight excess of mercury while all the other compounds (other heavy metals, polycyclic aromatic hydrocarbons, polychlorinated dibenzodioxins and dibenzofurans, and polychlorinated biphenyls) were below the limits required by the European Union foodstuff legislation. Fortunately, extending the flue gas treatment prior to the cultivation unit by a simple granulated activated carbon column led to an efficient absorption of gaseous mercury and to the algal biomass composition compliant with all the foodstuff legislation requirements.
I Douskova; J Doucha; K Livansky; J Machat; P Novak; D Umysova; V Zachleder; M Vitova
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-12-19
Journal Detail:
Title:  Applied microbiology and biotechnology     Volume:  82     ISSN:  1432-0614     ISO Abbreviation:  Appl. Microbiol. Biotechnol.     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-01-20     Completed Date:  2009-02-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8406612     Medline TA:  Appl Microbiol Biotechnol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  179-85     Citation Subset:  IM    
Laboratory of Cell Cycles of Algae, Department of Autotrophic Microorganisms, Institute of Microbiology, Academy of Sciences of the Czech Republic, Novohradska 237, Opatovicky mlyn, 379 81, Trebon, Czech Republic.
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MeSH Terms
Biodegradation, Environmental
Biotechnology / economics*
Carbon Dioxide / metabolism
Chlorella vulgaris / chemistry,  growth & development*,  metabolism
Gases / chemistry,  metabolism*
Reg. No./Substance:
0/Gases; 124-38-9/Carbon Dioxide

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