Reduction of surface sulphur upon microbial devulcanization of rubber materials

被引：47

作者：

Christiansson, M

Stenberg, B

Wallenberg, LR

Holst, O

机构：

[1] Univ Lund, Dept Biotechnol, Ctr Chem & Chem Engn, S-22100 Lund, Sweden

[2] Royal Inst Technol, S-10044 Stockholm, Sweden

[3] Univ Lund, Ctr Chem & Chem Engn, Dept Inorgan Chem 2, S-22100 Lund, Sweden

来源：

BIOTECHNOLOGY LETTERS | 1998年 / 20卷 / 07期

关键词：

Rubber; Natural Rubber; Electron Spectroscopy; Oxidise Capacity; Oxidise Sulphur;

D O I：

10.1023/A:1005306220566

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：

Thiobacillus ferrooxidans, T. thioparus, Acidianus brierleyi and TH2 Lund, an archaeal isolate, were tested for sulphur oxidising capacity on ground rubber from spent car tyres. T: ferrooxidans converted 8% (w/w) of the sulphur in cryoground spent rubber to sulphate in 20 days. Desulphurization of fresh made natural rubber was studied with scanning electron microscope with energy-dispersive x-ray spectrometer and electron spectroscopy for chemical analysis. The average depletion of sulphur on the treated surface was 24% compared to the bulk region. Oxidised sulphur species were detected on the surface after microbial treatment.

引用

页码：637 / 642

页数：6

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