RE: DIG-L: Risk of methanisation in a sludge tank storage

["Schomaker, Ton" <t.schomaker@royalhaskoning.com>]

Dear Jay,
 
If the sludge is not aerobically stabalized, I suppose there will be some
risks of methane and H2S release indeed.
The quantity of this release depends on sludge retention time in storage
tank, ambient temperature, composition of sludge, etc. and is therefor hard
to estimate at forehand.
 
Kind regards,
 
A.H.H.M. (Ton) Schomaker MSc 
Division Water 
Advisory Group Water Resources & Ecology 

Haskoning Nederland B.V. 
a company of Royal Haskoning 
P.O. Box 525 
5201 AM 's-Hertogenbosch 
The Netherlands 
Tel.: +31 (0)73 687 41 86 
Fax:  +31 (0)73 612 07 76 
Mobile: 06 104 107 26 
E-mail: t.schomaker@royalhaskoning.com 
Internet: www.royalhaskoning.com 


From: Jerome Gay [mailto:jerome.gay@oser.net]
Sent: woensdag 17 april 2002 14:49
To: digestion@crest.org
Subject: DIG-L: Risk of methanisation in a sludge tank storage



Dear all,
 
I am working on an incineration plant of wastewater sludge. Sludge is
dewatered (between 65 to 85% of humidity). Sludge is not stabilized and is
stored in a sludge tank storage of 125 m3 before injection in the furnace.
 
I would like to know if there is some risks of methane, H2S or other gas
released in the sludge tank storage and I would like to quantify this risk
(quantity of methane and other gas released in this conditions).
 
I would be very grateful if you could send me informations on the subject.
 
Thank you in advance for your collaboration.
 
Sincerely yours.
 
 
*************************************************
Jerome GAY
OSER
317 rue de la garenne
92741 Nanterre Cedex
Tel: 33 (0)1 55 66 03 63
Fax: 33 (0)1 55 66 03 66
 
Visitez notre site internet : www.oser.net <http://www.oser.net> 
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