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- Christiansson, M, et al.
(författare)
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Reduction of surface sulphur upon microbial devulcanization of rubber materials
- 1998
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Ingår i: Biotechnology Letters. - 0141-5492. ; 20:7, s. 637-642
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Tidskriftsartikel (refereegranskat)abstract
- 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 cryo-ground 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.
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