I'm trying to identify a mystery bug which is growing in a process tank, creating a black "gunge". The conditions that it is growing in contain weak sulphuric acid (about 8 gram per litre) phosphoric acid plus low concentrations of hydrochloric acid, acetic acid and caustic soda.
An energy dispersive X-Ray analysis has identified Carbon, Oxygen, Sulphur, Calcium and Potassium in the material and the SEM's attached suggest it is biological material. We are still working on this and hope to put it through a bio-typer, but I was wondering if anyone recognises the micro-organism from the scan pictures?
It seems to be filamentous with nodules, which may or may not have "collapsed" during the analysis. If anyone has any ideas, let me know.
Kind regards, Alex