WEF Discussions — Now on LinkedIn!

WEF is pleased to announce the creation of free LinkedIn groups associated with its technical discussion forum topics. Through these LinkedIn groups, members will be able to view and participate in discussions, as well as communicate with one another via direct messages. Share your experiences and knowledge, ask questions and respond to other discussions as frequently as you like!

You must have a LinkedIn profile to join a LinkedIn group; you can create your profile here. If you already have a LinkedIn profile, all you need to do is submit a request to join one or all of the following groups:

Water Environment Federation (Main) | Biosolids | Collection Systems | Nutrients | Stormwater 
Utility Management | Water Reuse | Water for Jobs | Watershed Management | Laboratory Practices 

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head loss at air diffused system
Posted: Monday, March 1, 2010 10:23 AM
Joined: 3/1/2010
Posts: 1

 I´d like help in order to measure at the field the Dynamic Wet Pressure, the pressure differencial (headloss) across the diffusion element _ membrane tube diffuser.

I need to measure the headloos at the same time, acroos the installed tube membrane and the new one tube membrane, both with the same size.
I will remove samples of the diffusers installed at the midlle of the laggon, and run the headloss test togheter with a new one membrane.
I will use a 1 meter surface water depth aquarium for the test.
What kind of aparatus I need to design to measur the actual head loss of the  diffuser?


Thomas Jenkins
Posted: Monday, July 5, 2010 11:55 AM
Joined: 1/13/2010
Posts: 8

You need a way to measure air flow and teh differential pressure. Dwyer has some inexpensive pitot tubes and differential pressure guages that shoud do the trick.


If you look in hte EPA fine pore aeration manual the procedure is described.