Process to convert a sulphur compound
AssigneePaqell B.V.
InventorsJohannes Bernardus Maria Klok, Margo Elzinga, Annemiek Ter Heijne, Cees Jan Nico Buisman, Johannes Wijnbelt
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Abstract
The invention is directed to a process to convert a sulphur compound to bisulphide by direct or indirect transfer of electrons from a cathode of a bio-electrochemical cell to the sulphur compound under anaerobic conditions and in the presence of mixed culture comprising methanogens and suitably also a anaerobic or facultative anaerobic bacteria. The sulphur compound may be a thiol like methanethiol or ethanethiol or a polysulphide, like dimethyl disulphide.
Claims32
A process for anaerobic bio-electrochemical degradation of an organic sulphur compound to bisulphide, comprising
- a) inoculating a bio-electrochemical cell with a mixed culture of microorganisms obtained from an anaerobically grown culture, the mixed culture comprising methanogens;
- b) contacting the microorganisms with an organic sulphur compound;
- c) allowing the microorganisms in the mixed culture to convert the organic sulphur compound to bisulphide by direct or indirect transfer of electrons from a cathode of the bio-electrochemical cell to the sulphur compound under anaerobic conditions.
A process to convert a sulphur compound to bisulphide by direct or indirect transfer of electrons from a cathode of a bio-electrochemical cell to the sulphur compound under anaerobic conditions and in the presence of methanogens.
A method of anaerobic bio-electrochemical degradation of an organic sulphur compound to bisulphide, the method comprising contacting a mixed culture of microorganism from the sludge of an anaerobic bioreactor with an organic sulphur compound.
Dependencies are inferred from the claim text.