The Inhibition of Heavy Metal Ions on Biological Sulfate Reduction System

Author

Ying, Feng ; Yong, Kang ; Wei, Lin

Author_Institution

Sch. of Mech. Eng., Shenyang Inst. of Chem. Technol., Shenyang, China

Volume

2

fYear

2009

fDate

16-18 Oct. 2009

Firstpage

863

Lastpage

866

Abstract

The inhibition of heavy metal ions on biological sulfate reduction system and the intensified function of Fe⁰ in process were studied in this paper. Mathematics model describing the relationship of metal concentration with sulfate reducing velocity and reducing percent was proposed, in which toxicity coefficient ÃŸ and metal concentration Ic that restraining 50% metabolism activities were included as criterions to evaluate the inhibition of metal ions on the metabolism of sulfate reducing bacteria. Mechanisms of Fe⁰ eliminating the toxicity of metal ions and enhancing the activities of organism were discussed on emphasis.

Keywords

microorganisms; toxicology; wastewater treatment; biological sulfate reduction system; heavy metal ion inhibition; mathematics model; metal concentration; metal ion toxicity; organism activities; sulfate reducing bacteria; wastewater treatment; Biochemistry; Chemical technology; Inductors; Integrated circuit modeling; Iron; Mathematical model; Mathematics; Microorganisms; Organisms; Wastewater; biological sulfate reduction; heavy metal; inhibition; iron;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy and Environment Technology, 2009. ICEET '09. International Conference on

Conference_Location

Guilin, Guangxi

Print_ISBN

978-0-7695-3819-8

Type

conf

DOI

10.1109/ICEET.2009.447

Filename

5365707