[Digestion] Digestion Digest, Vol 5, Issue 2., large Scale Digester for Municipal Waste (Bernd Haase)

[Art Krenzel]

Ramanujam.

All we do in the cold climates is set up a small scale electrical generator 
at the digestion site.  It produces electric power for ourselves and, if 
there is excess, for the grid.  We recover the waste heat and heat the 
buildings and the digester tanks as well.  It is not a big problem.  Instead 
of generating power off site and wasting the rejected heat, we keep the 
power generation onsite and recover the exhaust and water jacket heat 
instead of wasting it.

Such a system could work in the Antarctic if necessary (with suitable 
insulation).

Art Krenzel

> ----- Original Message ----- 
> From: "R.A. Ramanujam" <rar_envtech at yahoo.com>
> To: <digestion at listserv.repp.org>
> Sent: Saturday, November 04, 2006 4:51 AM
> Subject: Re: [Digestion] Digestion Digest, Vol 5, Issue 2.,large Scale
> Digester for Municipal Waste (Bernd Haase)
>
>
>> Dear Bernd
>>
>>  There is no low tech large scale digester operational in India for
>> municipal solid waste.  There is a plant operating in Chennai city of
>> Tamil Nadu India exclusively for Vegetable market waste. Its capacity is
>> 30 tpd. It is low soilds concentration digester. The maximum gas
>> generation achieved was 1700 cum/d.  It is only a demo plant.  Therefore
>> we are working on the system to increse the solids concentration to
>> increase the gas production to 2000 - 2300 cum/d. Dry fermentation
>> processes have not been  implemented in India till now in large scale as
>> that kind proceeses have to be operated only in thermophilic condition.
>> The biogas generated have to be utilised partly for heating the digester
>> contents. The available gas for energy generation will get reduced.  The
>> economic viability of the project is not of acceptable level.
>>
>>  regards
>>  Ramanujam
>>  Assistant Director, Dept of Environmental Technology
>>  Central Leather Research Institute
>>  Adyar, Chennai 600 020
>>  Telefax: +91-44-24450234
>>  email: rar_envtech at yahoo.com
>>
>> digestion-request at listserv.repp.org wrote:
>>  Send Digestion mailing list submissions to
>> digestion at listserv.repp.org
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>> or, via email, send a message with subject or body 'help' to
>> digestion-request at listserv.repp.org
>>
>> You can reach the person managing the list at
>> digestion-owner at listserv.repp.org
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Digestion digest..."
>>
>>
>> Today's Topics:
>>
>> 1. large Scale Digester for Municipal Waste (Bernd Haase)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Fri, 3 Nov 2006 07:34:34 +0100 (CET)
>> From: "Bernd Haase"
>> Subject: [Digestion] large Scale Digester for Municipal Waste
>> To: digestion at listserv.repp.org
>> Message-ID:
>> <1864.203.189.135.187.1162535674.squirrel at webmail.hs-bremen.de>
>> Content-Type: text/plain;charset=iso-8859-1
>>
>> Hey colleagues,
>>
>> I'm working on a feasibility study in phnom penh for the anaerobic
>> treatment of municipal waste. I'm wondering if some of you have heared
>> about a low-tech large scale plant that works successfully. I heard 
>> rumors
>> that india has plants running, but couldn't find anything in the web.
>> Please let me now about dry fermentation plants that use household or
>> marktet waste as substrat.
>>
>> thanx bernd
>>
>>
>>
>>
>> ------------------------------
>>
>> _______________________________________________
>> Digestion mailing list
>> Digestion at listserv.repp.org
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>
>> End of Digestion Digest, Vol 5, Issue 2
>> ***************************************
>>
>>
>>
>> ---------------------------------
>> Everyone is raving about the  all-new Yahoo! Mail.
>> _______________________________________________
>> Digestion mailing list
>> Digestion at listserv.repp.org
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>
>>
>>
>> -- 
>> No virus found in this incoming message.
>> Checked by AVG Free Edition.
>> Version: 7.1.409 / Virus Database: 268.13.23/513 - Release Date:
>> 02/11/2006
>>
>>
>
>
> _______________________________________________
> Digestion mailing list
> Digestion at listserv.repp.org
> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>