[Digestion] biogas slurry as manure

[adkarve]

Using decomposed biomass as manure is unscientific. On the one hand the
agronomists say that one should apply organic matter to the soil in order to
feed the micro-organisms in the soil, and on the other hand, they say that
one should apply well decomposed manure to the soil. This a paradox. We are
working on non-composted, high calorie organic material as feed for soil
micro-organisms and getting wonderful results. Thousands of farmers in India
are following this technique and getting excellent yield. They apply 25 kg
per ha each of sugar, cattle dung and cattle urine to the soil once every
three months. The procedure sounds unbelievable, but it works. One can also
use green leaves, but only 125 kg per ha.
Yours truly,
 A.D.Karve

----- Original Message -----
From: Paul Harris <paul.harris at adelaide.edu.au>
Cc: <digestion at listserv.repp.org>
Sent: Monday, November 06, 2006 8:15 AM
Subject: Re: [Digestion] Digester for Municipal Waste (Bernd Haase)


> G'day All,
>
> If you only look at an individual unit as the basis of a discussion you
> may well end up with that unit working really well, but not fitting in
> to the surrounding system.
>
> Biogas should preferably be used directly, as electricity generation is
> not efficient (it is a bit better if you can use the waste heat as Art
> suggests).
>
> You may get more energy by burning manure then you get from anaerobic
> digestion, but then were to the organic fertilisers/nutrients that are
> needed for crop growth come from?
>
> We need to keep a wider system in mind, then the slightly reduced
> performance of one unit may be balanced by much superior "system"
> operation. Not everything has to be high tech, peak efficiency - that
> requires a lot of management to maintain.
>
> All the best,
> HOOROO
>
> adkarve wrote:
> >
> > Through this message I wish to convey that biogas is not always the
ideal
> > fuel for producing electricity. Methane is a high grade form of fuel. If
you
> > want to run an internal combustion engine, you may have to convert the
> > biomass into methane. But a lot energy is lost in the process of
> > biomethanation itself. One kg dry dung would yield 2600 kcal of energy
if it
> > is burned directly, but converted into methane, it yields only 600 kcal
> > energy. Drying dung or any other biomass for direct combustion is not a
> > problem in India.One can produce electricity by using a steam turbine,
in
> > which the steam can be generated by burning any fuel. The sugar industry
> > burns bagasse for this purpose. Similarly, municipal solid waste can
also be
> > burned directly to produce steam and the steam can be used to produce
> > electricity.
> > Yours
> > A.D.Karve
> > ----- Original Message -----
> > From: Shrinivas Kasulla <na_sh81 at yahoo.co.in>
> > To: <digestion at listserv.repp.org>
> > Sent: Saturday, November 04, 2006 10:12 PM
> > Subject: [Digestion] Fwd: Re: Digestion Digest, Vol 5,Issue 2.,large
Scale
> > Digester for Municipal Waste (Bernd Haase)
> >
> > > Hi,
> > > thats true sir ive also read about many articles and i
> > > do feel that u are absolutely correct and i do value
> > > ur suggestions and as far as Dr. Ramanujam's
> > > suggestions and observations of his demo plant is
> > > concerned, i have visited that plant and yes they are
> > > working on a very good technology and i do feel that
> > > such type of plants will b having great demand in the
> > > near future.
> > >
> > > with regards
> > > Srinivas Kasulla
> > > Project Cordinator
> > > Note: forwarded message attached.
> > >
> > >
> > >
> > >
> > >
> >
____________________________________________________________________________
> > ________
> > > Access over 1 million songs - Yahoo! Music Unlimited
> > > (http://music.yahoo.com/unlimited)
> > >
> >
>
> --------------------------------------------------------------------------
--
> > ----
> >
> > > _______________________________________________
> > > Digestion mailing list
> > > Digestion at listserv.repp.org
> > > http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
> >
> > _______________________________________________
> > Digestion mailing list
> > Digestion at listserv.repp.org
> > http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>
> --
> Mr. Paul Harris
> Faculty of Sciences, DP710
> The  University of Adelaide, Roseworthy Campus, AUSTRALIA 5371
> Ph    : +61 8 8303 7880
> Fax   : +61 8 8303 7979
> mailto:paul.harris at adelaide.edu.au
> I now use "Spam Assassin" - if you do not get a reply please make
> contact again (by fax?)
> http://www.ees.adelaide.edu.au/people/soil/pharri01.html
> Member IOBB http://www.iobbnet.org/drupal/
>
> CRICOS Provider Number 00123M
> -----------------------------------------------------------
> This email message is intended only for the addressee(s)
> and contains information that may be confidential and/or
> copyright.  If you are not the intended recipient please
> notify the sender by reply email and immediately delete
> this email. Use, disclosure or reproduction of this email
> by anyone other than the intended recipient(s) is strictly
> prohibited. No representation is made that this email or
> any attachments are free of viruses. Virus scanning is
> recommended and is the responsibility of the recipient.
>
> _______________________________________________
> Digestion mailing list
> Digestion at listserv.repp.org
> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org