[Digestion] Biogas plant at Zoo

Fri Jun 28 03:36:34 CDT 2013

I think biogas is the best answer for human or animal waste since most of
the biological waste is wet and can go into the digestor straight away
rather then going through the step of drying and hence wastage of time and
energy. having a digestor in Zoo is a great idea and this should be
promoted world over. It has a great educational value as somebody on this
list pointed out.

In India there is a social stigma of using biogas from human waste.
Otherwise this can be a huge energy potential.

Cheers.

On Fri, Jun 28, 2013 at 1:53 PM, Jörgen Held <jorgen.held at renewtec.se>wrote:

> Dear all,****
>
> ** **
>
> Perhaps this is a little bit off-topic but there are *good reasons* for
> making biogas out of human waste.****
>
> The fecal matter has to be treated anyway and by anaerobic digestion the
> amount of waste is heavily reduced.****
>
> In Sweden approx. 600 GWh/year biogas is produced in 135 waste water
> treatment plants.****
>
> ** **
>
> The thing with biogas is the multitude of benefits, not only the energy
> content in the produced biogas.****
>
> **-          **Waste management (reduce the amount of waste)****
>
> **-          **Nutrient recovery (in fact the digestate is a better
> fertilizer than manure)****
>
> **-          **Soil enhancement (the digestate is an excellent soil
> enhancer in comparison to combustion of the feedstock)****
>
> **-          **Eliminate the spontaneous methane emissions to atmosphere
> associated with traditional manure handling****
>
> **-          **Reducing smell****
>
> **-          **Biogas is a high quality fuel that can be used much more
> efficient and with lower emissions than burning the original feedstock.***
> *
>
> **-          **Upgraded biogas are for instance used as vehicle fuel.
> Quite a big improvement if one consider the original feedstock…****
>
> ** **
>
> The point is that the biogas path offers many advantages of interest for
> the future sustainable and environmentally friendly human society. ****
>
> ** **
>
> Best regards,****
>
> ** **
>
> ___________________________________****
>
> *Dr. Jörgen Held*
>
> CEO Renewable Energy Technology International AB****
>
> Web: www.renewtec.se****
>
> ** **
>
> [image: 440px_Logotype] <http://www.regatec.org/>****
>
> ** **
>
> ** **
>
> ** **
>
> *Från:* Digestion [mailto:digestion-bounces at lists.bioenergylists.org] *För
> *paul perrin
> *Skickat:* den 27 juni 2013 22:51
> *Till:* For Discussion of Anaerobic Digestion
> *Ämne:* Re: [Digestion] Biogas plant at Zoo****
>
> ** **
>
> What I have read does say that human waste is pretty useless for biogas (I
> saw a figure of 1 cubic foot per day from one humans waste) - but I
> understand that animal like elephants have massively inefficient digestion
> systems (much food passing through almost entirely undigested) so their
> dung will be entirely different and contain much more raw ingredients for
> biogas generation (would dried elephant dung even burn?). There is a
> calculation to be done, and it can't be based on 'averages' across species.
> ****
>
> ** **
>
> On 27 June 2013 20:28, Anand Karve <adkarve at gmail.com> wrote:****
>
> Dear Rabin,****
>
> all animals, including humans, function as live biogas plants. The fecal
> matter represents slurry coming out of a biogas plant. Using animal dung as
> feedstock in a biogas plant is a highly inefficient way of producing
> biogas. You get about 800 litres biogas from just 1 kg starch. To get the
> same amount of biogas from cattle dung, you need 40 kg of it. One gets much
> more energy from dung if it can be dehydrated and burned directly
> Yours****
>
> A.D.Karve****
>
> On Wed, Jun 26, 2013 at 11:35 AM, Rabin Shrestha <rshrestha at winrock.org.np>
> wrote:****
>
> Hello,****
>
>  ****
>
> Will it be a good idea to install biogas plant at zoo to manage and
> generate energy from the animal waste in the zoo???****
>
>  ****
>
> Regards,****
>
> Rabin****
>
> ** **
>
> _______________________________________________
> Digestion mailing list
>
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>
> for more information about digestion, see
> Beginner's Guide to Biogas
> http://www.adelaide.edu.au/biogas/
> and the Biogas Wiki http://biogas.wikispaces.com/
>
> ****
>
>
>
>
> --
> ***
> Dr. A.D. Karve
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
>
>
> _______________________________________________
> Digestion mailing list
>
> to Send a Message to the list, use the email address
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> to UNSUBSCRIBE or Change your List Settings use the web page
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> http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org
>
> for more information about digestion, see
> Beginner's Guide to Biogas
> http://www.adelaide.edu.au/biogas/
> and the Biogas Wiki http://biogas.wikispaces.com/
>
> ****
>
> ** **
>
> _______________________________________________
> Digestion mailing list
>
> to Send a Message to the list, use the email address
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>
> to UNSUBSCRIBE or Change your List Settings use the web page
>
> http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org
>
> for more information about digestion, see
> Beginner's Guide to Biogas
> http://www.adelaide.edu.au/biogas/
> and the Biogas Wiki http://biogas.wikispaces.com/
>
>
>

-- 
Nimbkar Agricultural Research Institute (NARI)
Tambmal, Phaltan-Lonand Road
P.O.Box 44
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