[Digestion] Digestion Digest, Vol 34, Issue 8

Edward Silalahi (Medan) Edward_Silalahi at asianagri.com
Mon Jun 24 03:08:57 CDT 2013


Dear David,
1.	Thank a lot for your attachment file, how can my understanding
will be better appropriate to bio gas production throughout from the
beginning process until produce the bio gas, 

2. could you mind to share me the reference for bacteria for anaerobic
process.

3. Our waste are Palm Oil Mill Effluent (POME) with COD approximate
70.000 to 80.000 ppm, my question how could I raise the efficiency of my
bio gas production?


Best Regards ++

 

Edward Silalahi 

Dy Head Mill and Engineering

Asian Agri Group

UniPlaza Building 6th floor East Tower
MT Hariyono street no 1A Medan 20231

Telp:+6261-4532155

Email:Edward_Silalahi at asianagri.com

Website:www.asianagri.com


-----Original Message-----
From: David Fulford [mailto:davidf at kingdombio.com] 
Sent: Monday, June 24, 2013 2:47 PM
To: Edward Silalahi (Medan); Paul Harris
Cc: digestion at lists.bioenergylists.org
Subject: Re: [Digestion] Digestion Digest, Vol 34, Issue 8

Hello Edward,

There  is  a  spreadsheet that shows how biogas is
generated  by  AD  from  sugar  and starch. I have
attached a zipped version, but  I  think  attached
 files  get removed by the mailing list.

Paul,  could  you  add  this  file  to  the biogas
wikispaces (http://biogas.wikispaces.com ), so
people  can access this. It could go on the biogas
online  course page. I  am  fairly  sure that this
will  answer  Edward's  question.  Using the basic
chemical  formulae  for  sugar  and  starch, it is
possible to calculate the COD of the feed material
and the COD of the methane produced. 

A  colleague  of  mine is researching the issue of
why  AD is so inefficient. Most biogas plants only
extract  about 35% of the available COD to biogas.
Actually  the microbes in a cows stomach manage to
extract  much  more.  He  wants  to  find  out the
difference between a cows gut and a biogas plant.

-- 
Best regards,
 David
  mailto:davidf at kingdombio.com

Monday, June 24, 2013, 5:19:47 AM, you wrote:

> Dear sir,
> I meant how the chemical process or biological process can convert COD
> to be Bio gas detail? At least from theory

> Best Regards ++

>  

> Edward Silalahi 

> Dy Head Mill and Engineering

> Asian Agri Group

> UniPlaza Building 6th floor East Tower
> MT Hariyono street no 1A Medan 20231

> Telp:+6261-4532155

> Email:Edward_Silalahi at asianagri.com

> Website:www.asianagri.com

> -----Original Message-----
> From: Digestion
> [mailto:digestion-bounces at lists.bioenergylists.org] On
> Behalf Of
> digestion-request at lists.bioenergylists.org
> Sent: Sunday, June 23, 2013 9:40 PM
> To: digestion at lists.bioenergylists.org
> Subject: Digestion Digest, Vol 34, Issue 8

> Send Digestion mailing list submissions to
>         digestion at lists.bioenergylists.org

> To subscribe or unsubscribe via the World Wide Web, visit
>         
>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioener
> gylists.org

> or, via email, send a message with subject or body 'help' to
>         digestion-request at lists.bioenergylists.org

> You can reach the person managing the list at
>         digestion-owner at lists.bioenergylists.org

> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Digestion digest..."


> Today's Topics:

>    1. Re: Digestion Digest, Vol 34, Issue 6 (Anand Karve)
>    2. RedBioLAC Workshop and Course on biogas | Universidad
>       Zamorano - Honduras (Mariela Pino)


> ----------------------------------------------------------------------

> Message: 1
> Date: Sun, 23 Jun 2013 12:55:44 +0530
> From: Anand Karve <adkarve at gmail.com>
> To: For Discussion of Anaerobic Digestion
>         <digestion at lists.bioenergylists.org>
> Subject: Re: [Digestion] Digestion Digest, Vol 34, Issue 6
> Message-ID:
>         
> <CACPy7SdpVuJuu_Yn1ntpWN7G6NDQKRXotwLa+Rx-GtKJP-a45g at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"

> Dear Mr. Silalahi,
> it is not possible to predict the quantity of biogas from COD, as the
> biogas digester cannot digest all the organic matter.
> Yours
> A.D.Karve

> On Fri, Jun 21, 2013 at 2:02 PM, Edward Silalahi (Medan) <
> Edward_Silalahi at asianagri.com> wrote:

>> Dear All,
>> Could you help me about these issues:
>> 1. How to calculate from COD to Bio gas (the conversion)
>> 2. How the bacteria life span,
>> 3. How the bacteria can convert COD to bio gas and others components?
>>
>> Best Regards ++
>>
>>
>>
>> Edward Silalahi
>>
>> Dy Head Mill and Engineering
>>
>> Asian Agri Group
>>
>> UniPlaza Building 6th floor East Tower
>> MT Hariyono street no 1A Medan 20231
>>
>> Telp:+6261-4532155
>>
>> Email:Edward_Silalahi at asianagri.com
>>
>> Website:www.asianagri.com
>>
>> -----Original Message-----
>> From: Digestion [mailto:digestion-bounces at lists.bioenergylists.org]
On
>> Behalf Of digestion-request at lists.bioenergylists.org
>> Sent: Thursday, June 20, 2013 1:00 AM
>> To: digestion at lists.bioenergylists.org
>> Subject: Digestion Digest, Vol 34, Issue 6
>>
>> Send Digestion mailing list submissions to
>>         digestion at lists.bioenergylists.org
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>>
>>
>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioener
>> gylists.org
>>
>> or, via email, send a message with subject or body 'help' to
>>         digestion-request at lists.bioenergylists.org
>>
>> You can reach the person managing the list at
>>         digestion-owner at lists.bioenergylists.org
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Digestion digest..."
>>
>>
>> Today's Topics:
>>
>>    1. Re: Digester Selection (Paul Harris)
>>    2. Digester Selection (Prabhu Govindarajan)
>>    3. Re: Digester Selection (Paul Harris)
>>
>>
>>
----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Wed, 19 Jun 2013 09:47:23 +0930
>> From: Paul Harris <paul.harris at adelaide.edu.au>
>> To: For Discussion of Anaerobic Digestion
>>         <digestion at lists.bioenergylists.org>
>> Subject: Re: [Digestion] Digester Selection
>> Message-ID: <51C0F893.3050801 at adelaide.edu.au>
>> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
>>
>> G'day Prabhu,
>>
>> One consideration in the selection is the technical expertise
> available
>> and the operator time available.
>>
>> If there is a low level of expertise and little skilled labour a
> simple
>> digester operating on a longer retention time will be more robust,
but
>> if there is a skilled labour force available you may decide to go for
> a
>> high rate design (which will require more operator time), but make
> sure
>> you can get technical advice about the design easily.
>>
>> In any case I would suggest setting up a small trial digester using
> your
>>
>> substrate to gain some experience of the likely design - you can get
>> some ideas from http://biogas.wikispaces.com/.
>>
>> Happy digesting,
>> HOOROO
>>
>> On 18/06/2013 3:28 PM, Prabhu Govindarajan wrote:
>> > Hi
>> >    I am from a south Indian State of India, TamilNadu.We want to
> build
>>
>> > a Digester for poultry manure (2-5) tons/week What would be nice
>> > approach for the AD
>> >
>> > 1.CST  3 Stage Plug Flow  - CST IISC
>> > 2.Nisarguna - BARC Reactor -
>> > http://www.barc.gov.in/akruti-tp/atp_nisar.html
>> > 3.CSTR
>> > 4.U Shaped mixed plug flow - Some US Dairy Farms
>> >
>> > Can somebody help us with consultancy as well ?
>> >
>> > Thanks
>> >
>> > Prabhu.G
>> >
>> >
>> > _______________________________________________
>> > Digestion mailing list
>> >
>> > to Send a Message to the list, use the email address
>> > Digestion at bioenergylists.org
>> >
>> > to UNSUBSCRIBE or Change your List Settings use the web page
>> >
>>
>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioener
>> gylists.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/
>> >
>>
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL:
>>
>
<http://lists.bioenergylists.org/pipermail/digestion_lists.bioenergylist
>> s.org/attachments/20130619/1cf7c33a/attachment-0001.html>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Wed, 19 Jun 2013 11:12:59 +0530
>> From: Prabhu Govindarajan <prabhu.govvindarajan at gmail.com>
>> To: digestion at lists.bioenergylists.org
>> Subject: [Digestion] Digester Selection
>> Message-ID:
>>
>> <CAGQutcAXcpP0JSChdC7SONOnHp2mvEMZmQ=+w6SrHGzBY82rNg at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi
>>
>>  Thanks for the pointers.The question i had in my mind when i asked
> this
>> was this
>> 1.Does AD design affect the manure produced,H2S Content and ammonia
>> inhibition?
>> 2.How does it affect the operational and process maintenance ?
>> 3.As broiler manure supposed to have lot of heavy metals and steroids
>> should special care be taken .
>> 4.Can some kind of co-digestion solve it ?
>>
>> Thanks
>>
>> Prabhu.G
>>
>>
>> On Tue, Jun 18, 2013 at 11:30 PM, <
>> digestion-request at lists.bioenergylists.org> wrote:
>>
>> > Send Digestion mailing list submissions to
>> >         digestion at lists.bioenergylists.org
>> >
>> > To subscribe or unsubscribe via the World Wide Web, visit
>> >
>> >
>>
>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioener
>> gylists.org
>> >
>> > or, via email, send a message with subject or body 'help' to
>> >         digestion-request at lists.bioenergylists.org
>> >
>> > You can reach the person managing the list at
>> >         digestion-owner at lists.bioenergylists.org
>> >
>> > When replying, please edit your Subject line so it is more specific
>> > than "Re: Contents of Digestion digest..."
>> >
>> >
>> > Today's Topics:
>> >
>> >    1. Digester Selection (Prabhu Govindarajan)
>> >
>> >
>> >
> ----------------------------------------------------------------------
>> >
>> > Message: 1
>> > Date: Tue, 18 Jun 2013 11:28:33 +0530
>> > From: Prabhu Govindarajan <prabhu.govvindarajan at gmail.com>
>> > To: digestion at lists.bioenergylists.org
>> > Subject: [Digestion] Digester Selection
>> > Message-ID:
>> >         <CAGQutcAU2zjUdJSr09j=
>> > 4itsRd6Pe-gxs17Du6m34xzdj5oePQ at mail.gmail.com>
>> > Content-Type: text/plain; charset="iso-8859-1"
>> >
>> > Hi
>> >    I am from a south Indian State of India, TamilNadu.We want to
> build
>> a
>> > Digester for poultry manure (2-5) tons/week What would be nice
>> approach for
>> > the AD
>> >
>> > 1.CST  3 Stage Plug Flow  - CST IISC
>> > 2.Nisarguna - BARC Reactor -
>> > http://www.barc.gov.in/akruti-tp/atp_nisar.html
>> > 3.CSTR
>> > 4.U Shaped mixed plug flow - Some US Dairy Farms
>> >
>> > Can somebody help us with consultancy as well ?
>> >
>> > Thanks
>> >
>> > Prabhu.G
>> > -------------- next part --------------
>> > An HTML attachment was scrubbed...
>> > URL: <
>> >
>>
>
http://lists.bioenergylists.org/pipermail/digestion_lists.bioenergylists
>> .org/attachments/20130618/2a7b00d4/attachment-0001.html
>> > >
>> >
>> > ------------------------------
>> >
>> > Subject: Digest Footer
>> >
>> > _______________________________________________
>> > Digestion mailing list
>> >
>> > to Send a Message to the list, use the email address
>> > Digestion at bioenergylists.org
>> >
>> > to UNSUBSCRIBE or Change your List Settings use the web page
>> >
>> >
>>
>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioener
>> gylists.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/
>> >
>> >
>> >
>> > ------------------------------
>> >
>> > End of Digestion Digest, Vol 34, Issue 5
>> > ****************************************
>> >
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL:
>>
>
<http://lists.bioenergylists.org/pipermail/digestion_lists.bioenergylist
>> s.org/attachments/20130619/d2136c33/attachment-0001.html>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Wed, 19 Jun 2013 15:47:24 +0930
>> From: Paul Harris <paul.harris at adelaide.edu.au>
>> To: digestion at lists.bioenergylists.org
>> Subject: Re: [Digestion] Digester Selection
>> Message-ID: <51C14CF4.1050209 at adelaide.edu.au>
>> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
>>
>> G'day Again,
>>
>> 1. In my simple engineers approach "what goes in MUST come out
>> (sometime!)" - this means that nearly all the inputs appear in the
>> sludge, as only relatively small amounts of carbon, hydrogen and
> oxygen
>> appear in the gas stream (with traces of nitrogen, sulphur etc.), but
>> some grit may only be emptied in maintenance periods. You will only
> get
>> H2S with high sulphur feeds (and possibly short retention times) and
>> microbes can acclimate to ammonia given time (build up the feed rate
>> slowly!) - pH is also important. As poultry do not have methanogens
in
>> their gut/crop/whatever you will have to start with cow manure or
some
>> other innoculum and change gradually to poultry manure - less
problems
>> if you can do co-feed other materials.
>>
>> 2. As mentioned in my other e-mail "high rate" digesters (tend to be
>> more complex) require more monitoring (can be automatic, but you do
>> still need a human or two!) and operator skill than simpler low rate
>> digesters.
>>
>> 3. You would have to watch heavy metals when you spread sludge and
> make
>> sure steroids don't yield "super-bugs". Heavy metals can cause
>> inhibition and I am not sure about steroid effects (I was joking
about
>> superbugs!).
>>
>> 4. Yes, as mentioned above co-digestion may solve (or help with) some
> of
>>
>> the problems.
>>
>> Hope this helps,
>> HOOROO
>>
>> On 19/06/2013 3:12 PM, Prabhu Govindarajan wrote:
>> >
>> > Hi
>> >
>> >  Thanks for the pointers.The question i had in my mind when i asked
>> > this was this
>> > 1.Does AD design affect the manure produced,H2S Content and ammonia
>> > inhibition?
>> > 2.How does it affect the operational and process maintenance ?
>> > 3.As broiler manure supposed to have lot of heavy metals and
> steroids
>> > should special care be taken .
>> > 4.Can some kind of co-digestion solve it ?
>> >
>> > Thanks
>> >
>> > Prabhu.G
>> >
>> >
>> > On Tue, Jun 18, 2013 at 11:30 PM,
>> > <digestion-request at lists.bioenergylists.org
>> > <mailto:digestion-request at lists.bioenergylists.org>> wrote:
>> >
>> >     Send Digestion mailing list submissions to
>> >     digestion at lists.bioenergylists.org
>> >     <mailto:digestion at lists.bioenergylists.org>
>> >
>> >     To subscribe or unsubscribe via the World Wide Web, visit
>> >
>>
>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioener
>> gylists.org
>> >
>> >     or, via email, send a message with subject or body 'help' to
>> >     digestion-request at lists.bioenergylists.org
>> >     <mailto:digestion-request at lists.bioenergylists.org>
>> >
>> >     You can reach the person managing the list at
>> >     digestion-owner at lists.bioenergylists.org
>> >     <mailto:digestion-owner at lists.bioenergylists.org>
>> >
>> >     When replying, please edit your Subject line so it is more
>> specific
>> >     than "Re: Contents of Digestion digest..."
>> >
>> >
>> >     Today's Topics:
>> >
>> >        1. Digester Selection (Prabhu Govindarajan)
>> >
>> >
>> >
>>
----------------------------------------------------------------------
>> >
>> >     Message: 1
>> >     Date: Tue, 18 Jun 2013 11:28:33 +0530
>> >     From: Prabhu Govindarajan <prabhu.govvindarajan at gmail.com
>> >     <mailto:prabhu.govvindarajan at gmail.com>>
>> >     To: digestion at lists.bioenergylists.org
>> >     <mailto:digestion at lists.bioenergylists.org>
>> >     Subject: [Digestion] Digester Selection
>> >     Message-ID:
>> >
>> >
>> <CAGQutcAU2zjUdJSr09j=4itsRd6Pe-gxs17Du6m34xzdj5oePQ at mail.gmail.com
>> <mailto:4itsRd6Pe-gxs17Du6m34xzdj5oePQ at mail.gmail.com>>
>> >     Content-Type: text/plain; charset="iso-8859-1"
>> >
>> >     Hi
>> >        I am from a south Indian State of India, TamilNadu.We want
to
>> >     build a
>> >     Digester for poultry manure (2-5) tons/week What would be nice
>> >     approach for
>> >     the AD
>> >
>> >     1.CST  3 Stage Plug Flow  - CST IISC
>> >     2.Nisarguna - BARC Reactor -
>> >     http://www.barc.gov.in/akruti-tp/atp_nisar.html
>> >     3.CSTR
>> >     4.U Shaped mixed plug flow - Some US Dairy Farms
>> >
>> >     Can somebody help us with consultancy as well ?
>> >
>> >     Thanks
>> >
>> >     Prabhu.G
>> >     -------------- next part --------------
>> >     An HTML attachment was scrubbed...
>> >     URL:
>> >
>>
>
<http://lists.bioenergylists.org/pipermail/digestion_lists.bioenergylist
>> s.org/attachments/20130618/2a7b00d4/attachment-0001.html>
>> >
>> >     ------------------------------
>> >
>> >     Subject: Digest Footer
>> >
>> >     _______________________________________________
>> >     Digestion mailing list
>> >
>> >     to Send a Message to the list, use the email address
>> >     Digestion at bioenergylists.org
> <mailto:Digestion at bioenergylists.org>
>> >
>> >     to UNSUBSCRIBE or Change your List Settings use the web page
>> >
>>
>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioener
>> gylists.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/
>> >
>> >
>> >
>> >     ------------------------------
>> >
>> >     End of Digestion Digest, Vol 34, Issue 5
>> >     ****************************************
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > Digestion mailing list
>> >
>> > to Send a Message to the list, use the email address
>> > Digestion at bioenergylists.org
>> >
>> > to UNSUBSCRIBE or Change your List Settings use the web page
>> >
>>
>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioener
>> gylists.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/
>> >
>>
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL:
>>
>
<http://lists.bioenergylists.org/pipermail/digestion_lists.bioenergylist
>> s.org/attachments/20130619/1fb87f33/attachment-0001.html>
>>
>> ------------------------------
>>
>> Subject: Digest Footer
>>
>> _______________________________________________
>> Digestion mailing list
>>
>> to Send a Message to the list, use the email address
>> Digestion at bioenergylists.org
>>
>> to UNSUBSCRIBE or Change your List Settings use the web page
>>
>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioener
>> gylists.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/
>>
>>
>>
>> ------------------------------
>>
>> End of Digestion Digest, Vol 34, Issue 6
>> ****************************************
>>
>> The above message is for the intended recipient only and may contain
>> confidential information and/or may be subject to legal privilege. If
> you
>> are not the intended recipient, you are hereby notified that any
>> dissemination, distribution, or copying of this message, or any
> attachment,
>> is strictly prohibited. If it has reached you in error please inform
> us
>> immediately by reply e-mail or telephone, reversing the charge if
>> necessary. Please delete the message and the reply (if it contains
the
>> original message) thereafter. Thank you.
>>
>> _______________________________________________
>> Digestion mailing list
>>
>> to Send a Message to the list, use the email address
>> Digestion at bioenergylists.org
>>
>> to UNSUBSCRIBE or Change your List Settings use the web page
>>
>>
>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioener
> gylists.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/
>>
>>




   ********************************************************************
Dr David Fulford CEnv MEI, 15, Brandon Ave, Woodley, Reading RG5 4PU
d.j.fulford at btinternet.com, Tel: +44(0)118 326 9779 Mob: +44(0)7746
806401
Kingdom Bioenergy Ltd, www.kingdombio.com, davidf at kindombio.com
                                 Skype Identity: djfulford

The above message is for the intended recipient only and may contain confidential information and/or may be subject to legal privilege. If you are not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this message, or any attachment, is strictly prohibited. If it has reached you in error please inform us immediately by reply e-mail or telephone, reversing the charge if necessary. Please delete the message and the reply (if it contains the original message) thereafter. Thank you.




More information about the Digestion mailing list