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| | | Forum Newbie
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Last Login: 4/9/2008 11:59:43 AM
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| | Anybody ever hear of Slime being generated in anaerobic digesters? |
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Supreme Being
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| | Pellet: Are you talking about a slime that adheres to itself? Sort of snot, taffy consistency thick gooey? Is it colored or transparent, smelly? Need to describe it a bit more in detail. What is the temperature of the anaerobic digester?
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| | | Forum Newbie
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Last Login: 4/9/2008 11:59:43 AM
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| | It smells like anaerobic sludge, sticks to itself, acts as a surfactant, and leads to a phenominal surface foaming. It is has weird dewatering characteristics. Even after it is dewatered to 24% it shakes like jello. The digesters are running at 95F give or take about a half a degree. |
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| | | Supreme Being
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| | | Forum Newbie
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Last Login: 4/9/2008 11:59:43 AM
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| | I forgot to mention we are using disolved air flotation and not using any polymer presently. The sludge is thickening to 5% without the use of polymer. That being said the consistensy was compared to polymer, still no word on whether we can use the slime in dewatering. |
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| | | Supreme Being
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| | I would have it analyzed under a microscope by someone who's has the expertise. Maybe a local College Chemistry or Biology professor can help. Look at your industries to see what products they handle. |
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| | | Junior Member
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| | It sounds like biological foaming caused by either nocardioform organisms or Microthrix parvicella. I say this because of your descriptions of its properties and because of the fact that you are able to get 5%TS by DAF thickening without using any polymer. Both of these microorganisms are highly hydrophobic and act as flotation aids for the WAS especially when using DAFs. I would be happy to look at the sludge for you if you want to contact me. David Jenkins |
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