[Digestion] Meso and Thermophilic Operating Temperature

Heegde BA ter, Bram b.a.ter.heegde at st.hanze.nl
Thu Jun 5 03:32:31 CDT 2014


Thank you for the paper, it is indeed an interesting graph, however not quite the one I was looking for. 

Maybe I should be a little clearer as to what I am trying to achieve/inverstigate. 

Two things that I would like to find out are, firstly, what is the effect of increasing digester temperature on gas Yield. With this I mean not only the absolute amount of gas produced but also the effect that temperature has on reaction time of the digester. I would also be interested in if the yield increases in an linear pattern in relation to the temperature, or if it is exponential/non-linear/etc, This is why I was looking for the graph of temp vs. biogas yield. I seem to remember that it wasn't a linear relationship. However, form experiments it does look like a linear relationship. 

That is the main issue Im trying to solve at the moment. 

Secondly I'm interested in the effect of ammonia loading at increased digester temperatures. 

Met vriendelijke groet;

Bram ter Heegde
NAW: 258757
Mob. Tel: 0653134337

________________________________________
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Sent: 04 June 2014 20:00
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Subject: Digestion Digest, Vol 45, Issue 1

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Today's Topics:

   1. Meso and Thermophilic Operating Temperature (Heegde BA ter, Bram)
   2. Re: Meso and Thermophilic Operating Temperature (Les Gornall)


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

Message: 1
Date: Wed, 4 Jun 2014 15:18:59 +0000
From: "Heegde BA ter, Bram" <b.a.ter.heegde at st.hanze.nl>
To: "digestion at lists.bioenergylists.org"
        <digestion at lists.bioenergylists.org>
Subject: [Digestion] Meso and Thermophilic Operating Temperature
Message-ID:
        <00C145A1644CD9468CEDDB6B9991F25F11E8C356 at HPEMB08W28.hanze.nl>
Content-Type: text/plain; charset="iso-8859-1"

Dear all,

I am a student at the Hanze Universtity of Applied Sciences and am currently investigating the possibilty of using waste heat to heat a biogas digester.

However, somewhere in my research I came accross a graph depicting the gas yield from cow dung in a biogas digester at the meso and at the thermophilic range.

It would be very handy to have that graph, and it's source, however I have spent the last two days looking for it and can't seem to find it.

Hope someone can point me in the right direction.

Kind regards/Met vriendelijke groet;

Bram ter Heegde
NAW: 258757
Mob. Tel: 0653134337



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

Message: 2
Date: Wed, 4 Jun 2014 16:04:57 +0000
From: Les Gornall <Les.Gornall at projen.co.uk>
To: For Discussion of Anaerobic Digestion
        <digestion at lists.bioenergylists.org>
Subject: Re: [Digestion] Meso and Thermophilic Operating Temperature
Message-ID:
        <4E83BE1704C70148BF9A0FC1ED1B54132DA72501 at EX01.projen.co.uk>
Content-Type: text/plain; charset="iso-8859-1"

http://www.pelagiaresearchlibrary.com/advances-in-applied-science/vol3-iss3/AASR-2012-3-3-1864-1869.pdf

This paper has a nice graph

Best Regards


Les Gornall
Process Consultant

PROjEN PLC
Process Consultant
DD:         01928 752 568
Email:    les.gornall at projen.co.uk


PROjEN HOUSE
Wellfield
Preston Brook
Runcorn
WA7 3AZ

Reception: +44 (0) 1928 752 500
www.projenbioenergy.co.uk




-----Original Message-----
From: Digestion [mailto:digestion-bounces at lists.bioenergylists.org] On Behalf Of Heegde BA ter, Bram
Sent: 04 June 2014 16:19
To: digestion at lists.bioenergylists.org
Subject: [Digestion] Meso and Thermophilic Operating Temperature

Dear all,

I am a student at the Hanze Universtity of Applied Sciences and am currently investigating the possibilty of using waste heat to heat a biogas digester.

However, somewhere in my research I came accross a graph depicting the gas yield from cow dung in a biogas digester at the meso and at the thermophilic range.

It would be very handy to have that graph, and it's source, however I have spent the last two days looking for it and can't seem to find it.

Hope someone can point me in the right direction.

Kind regards/Met vriendelijke groet;

Bram ter Heegde
NAW: 258757
Mob. Tel: 0653134337

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