Re: DIG-L: methane generating potential

[Paul Harris <Paul.Harris@adelaide.edu.au>]

G'day All,

Volatile Solids and BOD/COD destruction is related to methane
production, so a measurement of any of these parameters would give a
good idea of methane potential. It would also pay to check C:N ratio and
look for possible inhibitors like ammonium, heavy metals and
antibiotics. Of course if you have a fairly usual subsrate there should
be reports in the literature anyway, its when you try to do something
odd you need to be extra careful.

The only way to be sure is to do some trial digester runs and if they
are not up to scratch find out why - things are not THAT simple in
practice.

All the best,
HOOROO

Len Walde wrote:
> 
> Jeff et al:
> 
> I do not know if it exists, but am confident it does, but here goes:  The
> methane generating potential of wastewater is directly related to the
> dissolved solids content of the wastewater ---hence, measure this and you
> have what you are looking for -- I trust the measurement experts on this
> list can make suggestions  as to specific equipment-- (please CC me in this
> regard)
> 
> I trust this helps,
> 
> Regards to all,
> 
> Len
> 
> ----- Original Message -----
> From: "Jeff Raven" <jeffraven@worldnet.att.net>
> To: <digestion@crest.org>
> Sent: Tuesday, August 27, 2002 12:31 PM
> Subject: DIG-L: methane generating potential
> 
> > Is anyone aware of a "standard" test to measure the methane generating
> > potential of wastewater.  We are working on a project that is evaluating
> the
> > anaerobic process for several industrial wastewater streams and are
> looking
> > for a way to evaluate both the degradibility of the wastewater and the
> > resultant amount of methane generated (would also give an idea of
> anaerobic
> > toxicity).  Maybe something similar to a BOD test - except measure methane
> > generated  not oxygen used?
> > Thanks for any help.
> >         JEFF
> >
> >
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> http://www.crest.org/articles/static/1/1010424940_7.html
> 
> Beginners Tour of Biogas
> http://WWW.roseworthy.adelaide.edu.au/~pharris/biogas/beginners

-- 
Mr. Paul Harris
Faculty of Sciences
The  University of Adelaide, Roseworthy Campus, AUSTRALIA 5371
Ph    : +61 8 8303 7880
Fax   : +61 8 8303 7979
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http://www.crest.org/articles/static/1/1010424940_7.html

Beginners Tour of Biogas
http://WWW.roseworthy.adelaide.edu.au/~pharris/biogas/beginners