Properties of the biofilm of Thiobacillus ferrooxidans formed in rotating biological contactor

被引：20

作者：

Nikolov, L

Karamanev, D ^{[1
]}

Mamatarkova, V

Mehochev, D

Dimitrov, D

机构：

[1] Univ Western Ontario, Dept Chem & Biochem Engn, London, ON N6G 5B9, Canada

[2] Univ Sofia, Fac Biol, Sofia 1421, Bulgaria

来源：

BIOCHEMICAL ENGINEERING JOURNAL | 2002年 / 12卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

biofilms; bioreactors; kinetic parameters; Thiobacillus ferrooxidans; iron oxidation;

D O I：

10.1016/S1369-703X(02)00041-4

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The physico-chemical properties of the Thiobacillus ferrooxidans biofilm formed on the surface of rotating disks in a rotating biological contactor (RBC) were studied under steady-state conditions. The main independent variable was the input substrate (ferrous iron) concentration in the bioreactor. It has been shown that the biofilm thickness was maximal, the biofilm density was minimal and the specific surface area of pores in the biofilm was maximal when the input ferrous iron concentration was between 1 and 2.1 g/l. The biofilm volume remained nearly the same when input substrate concentrations were between 0.49 and 14.21 g/l, corresponding to oxidation rates between 0.35 and 8.6 g/m(2) h. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：43 / 48

页数：6

共 10 条

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[2] SCANNING ELECTRON-MICROSCOPIC EXAMINATION OF THIOBACILLUS-FERROOXIDANS ON DIFFERENT SUPPORT MATRIX MATERIALS IN PACKED-BED AND FLUIDIZED-BED BIOREACTORS [J].