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[freeman]

Dear All,
what are the differences between slurry and sludge for pumping? Is there any criteria about solid particle size?

Thank you in advance.
Freeman

[sgkim]

Freeman,

 

For pumping, slurries can be pumped by centrifugal pumps, but sludges cannot. Sludges can be pumped only by positive displacement pumps such as Moyno pumps, diaphragm pumps, lobe pumps, etc.  

 

The difference of viscosity of slurry or sludge is quite severe due to the particle shape than particle size and concentration, so there would not be any criteria about particle sizes.  

 

Refer to the site on the conceptual difference between slurry and sludge: http://wikidiff.com/sludge/slurry.

 

~Stefano Kim

Edited by sgkim, 11 May 2017 - 04:16 AM.