[Digestion] Digestion Digest, Vol 44, Issue 8

Jude Maxwell jude.maxwell at scotent.co.uk
Sun Apr 13 12:59:51 MDT 2014


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Subject: Digestion Digest, Vol 44, Issue 8

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Today's Topics:

   1. Re: Digestion Digest, Vol 44,     Issue 7 filtering digestate
      (PETER ALLISON)
   2. Re: Digestion Digest, Vol 44,     Issue 7 filtering digestate
      (Frans Somebody)
   3. Re: Digestion Digest, Vol 44, Issue 7 filtering digestate
      (Joe Crescenzi)
   4. R: Digestion Digest, Vol 44, Issue 7 (vlongo at tecam.it)
   5. R: Digestion Digest, Vol 44, Issue 7 (vlongo at tecam.it)
   6. Re: Digestion Digest, Vol 44, Issue 7 filtering digestate
      (Les Gornall)
   7. Re: Digestion Digest, Vol 44, Issue 7 filtering digestate
      (Les Gornall)


----------------------------------------------------------------------

Message: 1
Date: Sun, 13 Apr 2014 17:11:58 +1000
From: "PETER ALLISON" <pm.allison at bigpond.com>
To: <digestion at lists.bioenergylists.org>
Subject: Re: [Digestion] Digestion Digest, Vol 44,      Issue 7 filtering
        digestate
Message-ID: <3662846B14C247B68708A8FD71F8830C at AUD80503XC>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
        reply-type=original

Hi Frans Somebody, I spent ages developing means to filter digestate until I
discovered I was wasting my time. It is not filterable, it will always clog
any static screen. The digestate is full of very fine fiber and will bridge
any hole, pore or oriface. Do not go there. Have had success with
vibro-filtration of slurry thru a 3mm screen to remove extraneous debris
then centrifuge the liquid/digestate as a spill-over process. The centrifuge
needs to be able to hold a reasonable quantity of mud before having to be
emptied. The refined liquid still holds some very fine fluffy matter. I
change the pH to enable a complete separation of colloids from particulates.
The liquid is able to be sprayed normally and the remainder is formulated
and pelletized for broadcast.
Peter.




------------------------------

Message: 2
Date: Sun, 13 Apr 2014 10:32:20 +0200
From: Frans Somebody <franshenn238 at gmail.com>
To: For Discussion of Anaerobic Digestion
        <digestion at lists.bioenergylists.org>
Subject: Re: [Digestion] Digestion Digest, Vol 44,      Issue 7 filtering
        digestate
Message-ID:
        <CAO1pCqkwEU7=Z_ui29Ro_oYeopVJg1L2=ATr4PJJW7yY5RxS4Q at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

Hi Peter.
thanks for your input, I had thought of a centrifuge, (being an ex dairy
farmer used them to separate the cream!) but having done some reading, size
(to hold the solds) is an issue.
What of screw expellers? The Far east sell a lot, (call them de-waterers)
all of which they say will work, but can not tell me where one is working.
1 Co in South Africa also makes, & guarantees it will work with droppings,
but can not show me one that does, & when asked to put that in writing &
take it back if it does not...guess what!
At this stage cost is not an issue, at least it is a place to start & if I
have to travell 1/2 way round the globe to see one working I will do so.
Thanks again, and anyone else out there with any ideas.
Thanks, Frans
 On Apr 13, 2014 9:12 AM, "PETER ALLISON" <pm.allison at bigpond.com> wrote:

> Hi Frans Somebody, I spent ages developing means to filter digestate until
> I discovered I was wasting my time. It is not filterable, it will always
> clog any static screen. The digestate is full of very fine fiber and will
> bridge any hole, pore or oriface. Do not go there. Have had success with
> vibro-filtration of slurry thru a 3mm screen to remove extraneous debris
> then centrifuge the liquid/digestate as a spill-over process. The
> centrifuge needs to be able to hold a reasonable quantity of mud before
> having to be emptied. The refined liquid still holds some very fine fluffy
> matter. I change the pH to enable a complete separation of colloids from
> particulates. The liquid is able to be sprayed normally and the remainder
> is formulated and pelletized for broadcast.
> Peter.
>
> _______________________________________________
> 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.
> 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/
>
>
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Message: 3
Date: Sun, 13 Apr 2014 03:23:51 -0700
From: Joe Crescenzi <joecrescenzi at hotmail.com>
To: digestion list server <digestion at lists.bioenergylists.org>
Subject: Re: [Digestion] Digestion Digest, Vol 44, Issue 7 filtering
        digestate
Message-ID: <BLU172-W2448603B6CD48F1ADFFFB5D3560 at phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"

We run about 50,000 liters per day from our 1000M? digester through 2 of the Stainless model with 1mm screen ECCO FILTRO Made in Brazil, quite reasonably priced. These do fine with once a day cleaning.
http://www.youtube.com/watch?v=jiRE11u4A5I
http://www.eccofiltro.com.br/


More than happy to help with contacts for ordering is anyone is interested
Joe Crescenzi


Date: Sun, 13 Apr 2014 10:32:20 +0200
From: franshenn238 at gmail.com
To: digestion at lists.bioenergylists.org
Subject: Re: [Digestion] Digestion Digest, Vol 44,      Issue 7 filtering digestate

Hi Peter.

 thanks for your input, I had thought of a centrifuge, (being an ex dairy farmer used them to separate the cream!) but having done some reading, size (to hold the solds) is an issue.

What of screw expellers? The Far east sell a lot, (call them de-waterers) all of which they say will work, but can not tell me where one is working.

1 Co in South Africa also makes, & guarantees it will work with droppings, but can not show me one that does, & when asked to put that in writing & take it back if it does not...guess what!

At this stage cost is not an issue, at least it is a place to start & if I have to travell 1/2 way round the globe to see one working I will do so.

Thanks again, and anyone else out there with any ideas.

Thanks, Frans



On Apr 13, 2014 9:12 AM, "PETER ALLISON" <pm.allison at bigpond.com> wrote:

Hi Frans Somebody, I spent ages developing means to filter digestate until I discovered I was wasting my time. It is not filterable, it will always clog any static screen. The digestate is full of very fine fiber and will bridge any hole, pore or oriface. Do not go there. Have had success with vibro-filtration of slurry thru a 3mm screen to remove extraneous debris then centrifuge the liquid/digestate as a spill-over process. The centrifuge needs to be able to hold a reasonable quantity of mud before having to be emptied. The refined liquid still holds some very fine fluffy matter. I change the pH to enable a complete separation of colloids from particulates. The liquid is able to be sprayed normally and the remainder is formulated and pelletized for broadcast.


Peter.



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http://www.adelaide.edu.au/biogas/

and the Biogas Wiki http://biogas.wikispaces.com/





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Message: 4
Date: Sun, 13 Apr 2014 12:47:13 +0200
From: vlongo at tecam.it
To: digestion at lists.bioenergylists.org,
        digestion at lists.bioenergylists.org
Subject: [Digestion] R: Digestion Digest, Vol 44, Issue 7
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Message: 5
Date: Sun, 13 Apr 2014 12:47:13 +0200
From: vlongo at tecam.it
To: digestion at lists.bioenergylists.org,
        digestion at lists.bioenergylists.org
Subject: [Digestion] R: Digestion Digest, Vol 44, Issue 7
Message-ID: <20140413104713.5648528.22150.10223 at tecam.it>
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------------------------------

Message: 6
Date: Sun, 13 Apr 2014 11:23:14 +0000
From: Les Gornall <Les.Gornall at projen.co.uk>
To: For Discussion of Anaerobic Digestion
        <digestion at lists.bioenergylists.org>
Subject: Re: [Digestion] Digestion Digest, Vol 44, Issue 7 filtering
        digestate
Message-ID: <DC6A2E23-7D44-4E38-A2D5-456EFE6B26FB at projen.co.uk>
Content-Type: text/plain; charset="us-ascii"

Congratulations!  Worthy winners.

Best. 73

Les

Gi1BZT

MUARC





On 13 Apr 2014, at 09:34, "Frans Somebody" <franshenn238 at gmail.com<mailto:franshenn238 at gmail.com>> wrote:


Hi Peter.
thanks for your input, I had thought of a centrifuge, (being an ex dairy farmer used them to separate the cream!) but having done some reading, size (to hold the solds) is an issue.
What of screw expellers? The Far east sell a lot, (call them de-waterers) all of which they say will work, but can not tell me where one is working.
1 Co in South Africa also makes, & guarantees it will work with droppings, but can not show me one that does, & when asked to put that in writing & take it back if it does not...guess what!
At this stage cost is not an issue, at least it is a place to start & if I have to travell 1/2 way round the globe to see one working I will do so.
Thanks again, and anyone else out there with any ideas.
Thanks, Frans

On Apr 13, 2014 9:12 AM, "PETER ALLISON" <pm.allison at bigpond.com<mailto:pm.allison at bigpond.com>> wrote:
Hi Frans Somebody, I spent ages developing means to filter digestate until I discovered I was wasting my time. It is not filterable, it will always clog any static screen. The digestate is full of very fine fiber and will bridge any hole, pore or oriface. Do not go there. Have had success with vibro-filtration of slurry thru a 3mm screen to remove extraneous debris then centrifuge the liquid/digestate as a spill-over process. The centrifuge needs to be able to hold a reasonable quantity of mud before having to be emptied. The refined liquid still holds some very fine fluffy matter. I change the pH to enable a complete separation of colloids from particulates. The liquid is able to be sprayed normally and the remainder is formulated and pelletized for broadcast.
Peter.

_______________________________________________
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Beginner's Guide to Biogas
http://www.adelaide.edu.au/biogas/
and the Biogas Wiki http://biogas.wikispaces.com/




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------------------------------

Message: 7
Date: Sun, 13 Apr 2014 11:30:57 +0000
From: Les Gornall <Les.Gornall at projen.co.uk>
To: For Discussion of Anaerobic Digestion
        <digestion at lists.bioenergylists.org>
Subject: Re: [Digestion] Digestion Digest, Vol 44, Issue 7 filtering
        digestate
Message-ID: <B0C5EB8C-B8FA-40D1-86E4-53A8EA06D60A at projen.co.uk>
Content-Type: text/plain; charset="us-ascii"

Delete last message !


Best Regards
Les Gornall

Sent from my iPhone



> On 13 Apr 2014, at 12:25, "Les Gornall" <Les.Gornall at projen.co.uk> wrote:
>
> Congratulations!  Worthy winners.
>
> Best. 73
>
> Les
>
> Gi1BZT
>
> MUARC
>
>
>
>
>
> On 13 Apr 2014, at 09:34, "Frans Somebody" <franshenn238 at gmail.com<mailto:franshenn238 at gmail.com>> wrote:
>
>
> Hi Peter.
> thanks for your input, I had thought of a centrifuge, (being an ex dairy farmer used them to separate the cream!) but having done some reading, size (to hold the solds) is an issue.
> What of screw expellers? The Far east sell a lot, (call them de-waterers) all of which they say will work, but can not tell me where one is working.
> 1 Co in South Africa also makes, & guarantees it will work with droppings, but can not show me one that does, & when asked to put that in writing & take it back if it does not...guess what!
> At this stage cost is not an issue, at least it is a place to start & if I have to travell 1/2 way round the globe to see one working I will do so.
> Thanks again, and anyone else out there with any ideas.
> Thanks, Frans
>
> On Apr 13, 2014 9:12 AM, "PETER ALLISON" <pm.allison at bigpond.com<mailto:pm.allison at bigpond.com>> wrote:
> Hi Frans Somebody, I spent ages developing means to filter digestate until I discovered I was wasting my time. It is not filterable, it will always clog any static screen. The digestate is full of very fine fiber and will bridge any hole, pore or oriface. Do not go there. Have had success with vibro-filtration of slurry thru a 3mm screen to remove extraneous debris then centrifuge the liquid/digestate as a spill-over process. The centrifuge needs to be able to hold a reasonable quantity of mud before having to be emptied. The refined liquid still holds some very fine fluffy matter. I change the pH to enable a complete separation of colloids from particulates. The liquid is able to be sprayed normally and the remainder is formulated and pelletized for broadcast.
> Peter.
>
> _______________________________________________
> 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/
>
>
>
>
> Click here<https://www.mailcontrol.com/sr/MZbqvYs5QwJvpeaetUwhCQ==> to report this email as spam.
>
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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/
>
> Please visit www.projen.co.uk/email-disclaimer.asp to view our email disclaimer.
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> http://www.adelaide.edu.au/biogas/
> and the Biogas Wiki http://biogas.wikispaces.com/
>
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------------------------------

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------------------------------

End of Digestion Digest, Vol 44, Issue 8
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