Oil Sludge

Friends,

What's in the oil sludge?  can it be filtered and dealt with as animal 
fat?  There are people on the forums talking about making BioD from 
sheep renderings - talk about super high titration!  This requires the 
acid-base process, something that Seth was talking a lot about earlier 
this year.  It is worth having a mixmaster subcommittee try the 
acid-base treatment to see if we can react this stuff?  As I recall, it 
takes about 1 ml conc. sulphuric acid per liter of oil.  Seth is 
probably more up to speed on this.  I can post some links if someone 
wants to take this on.

It's ok to throw stones if I am way off base.