[Digestion] parameter , besides the H2S contect, to check if the plant is running correctly
firmen at schlattmann.de
Thu Oct 21 17:08:07 PDT 2010
> I mean, does exist a paramater , besides the H2S contect, to check if
the plant is running correctly?
More directly you can take a look at H2 in the biogas. (since
sulfate-reducing organisms use H2, the production of H2S follows the
peaks of H2 production with a retard, also H2S production depends on
S-content in the substrate).
You also may take a look at this picture:
This shows a startup-phase of two pilot-scale digesters (started at the
same time, fed with the same substrate). So H2 is very high in the
beginning, since H2-utilising methanogenic bacteria grow slower. Around
day 17 you see a change in H2 measurements caused by a disturbancein the
influent. Also you can see every daily feed event leading to small H2 peaks.
Roughly said: in an agricultural biogas plant running at normal
conditions you will have 50-100 ppm H2 in the biogas. At the latest if
H2 rises above 400 ppm you should start to have a closer look what's
Dipl.-Ing. agr. Markus Schlattmann
Grünseiboldsdorfer Weg 5
Tel.: +49 (0)8761 72162-60
Fax.: +49 (0)8761 72162-61
E-Mail: firmen at schlattmann de
More information about the Digestion