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Foam in Aeration Tanks (Read 970 times)

Mohammed Minhaj YaBB Newbies Offline I love Water and Wastewater.com Posts: 9 Company or Organization: Huber Technology Middle East	Foam in Aeration Tanks Dec 19^th, 2011, 2:22am Hello, I need some information on how to reduce the foam production in the aeration tanks for a Package Membrane plant of 2000 m3/day installed in a desert in Abu Dhabi in U.A.E. The foam production started just last week , since 4 to 5 months no foam. Thanks.
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Sookie YaBB Newbies Offline I love Water and Wastewater.com Posts: 49 Company or Organization: Australia	Re: Foam in Aeration Tanks Reply #1 - Dec 19^th, 2011, 2:32am Hi, Could you describe the foam a bit more? I have had some decent experience with foam and may be able to assist you? I need to know the colour / depth / rough size of bubbles. Thanks Sookie
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dwi handaya God Member Offline Water and Wastewater.com is the best! Posts: 531 Indonesia Gender: Company or Organization: WWT freelancer	Re: Foam in Aeration Tanks Reply #2 - Dec 19^th, 2011, 5:12am Typical biological foaming 1. White foam : high FM, shock load 2. Dark, brown leather foam : low FM 3. black in surface foam --> possible poison Check your FM ratio and possibility of shock load
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C. Gillen

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Applied
Environmental
Biotechnology

Posts: 773
Ireland
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Company or Organization: BioFuture Ltd.

Re: Foam in Aeration Tanks
Reply #3 - Dec 19^th, 2011, 8:12am

Hi Mohammed,
What is the nature of the wastewater you are treating. What is the appearance of the foam? Are there significant sources of detergents entering the plant i.e. laundries? As outlined by previous posters there are a number of possibilities so we need some guidance on the appearance of the foam in order to suggest remedies.

Best regards,
Cgillen

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