WEF Discussions — Now on LinkedIn!

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Foaming Tests
Alan Yen
Posted: Thursday, June 3, 2010 3:20 PM
Joined: 6/3/2010
Posts: 1

I'm looking for a commonly accepted procedure for foaming tests.  Any advice will be appreciated.


Also, are there independent labs who can conduct the tests?


Thank you.


Alan Yen

Victor Santa Cruz
Posted: Tuesday, June 8, 2010 10:37 PM
Joined: 11/11/2009
Posts: 38



You are not very specific as to foaming.  Is this the ability/capacity for a high solids sample (mixed liquor, digester) or influent/effluent stream sample to foam and cause settling issues and subsequently loss of solids?  If it is then get a hold of Dr. Jenkins et al, "Causes and Control of Activated Sludge Bulking, Foaming, and Other Solids Separation Problems", 3rd Edition, Lewis Publishers, ISBN No. 1-56670-647-5.  The manual has several techniques you can use to determine foaming of specific samples.