[Digestion] Floating manure

[Jaime Marti Herrero]

Hi frank.
 
The problem is not the floating manure, the problem is the formation of the foam. 
This foam gets solid along the time, and stop the anaerobic digestion, because separate the liquid phase to the gaseus phase. 
This solid foam can be about 20cm width han in some cases you need a hammer to destroy it. 
 
The way to evitate the formation f this solid foam is with agitation or with a good manure:water rate mixing.
I work with 1:3 rate for tubular biodigesters. Some people use 1:2.
Keeep in contact
jaime> Date: Thu, 13 Sep 2007 09:02:24 -0700> From: frank at compostlab.com> CC: > Subject: Re: [Digestion] Floating manure> > Biogas people> I assume the floating manure is methane getting caught under it and it > floats to the top? But why does this stop the reaction, production, of > methane? It should still be wet and under anaerobic conditions.> > Thanks> Frank> > 
_________________________________________________________________
Discover the new Windows Vista
http://search.msn.com/results.aspx?q=windows+vista&mkt=en-US&form=QBRE