Water Environment Federation (WEF) Discussion Forums / WEF Discussion Forums / Operation & Maintenance / How to get rid of Brown Foam / Latest Posts

RE: How to get rid of Brown Foam

Sabir — Thu, 08 May 2008 00:39:03 GMT

Try this link and recomended cure;

http://www.alken-murray.com/NocardiaFrameSet.html

RE: How to get rid of Brown Foam

TerryF — Wed, 07 May 2008 06:35:11 GMT

Joey,

There are lots of reasons , causes and solutions for Norcardia foamining and i would be certain that you have tried them all. One thing i did once with a pilot plant that got overrun with norcardia foam was to reduce the aeration rate. I still had the same DO , the same air volume etc but i just slowed down the rate at which it was applied and applied it longer(this was on a SBR which was not continuously aerated). Obviously this changes the biological dynamics but it also simply slowed the rate at which foam was formed.

Another time i used a small amount of polymer that was used on the main plant belt press , and sprinkled it on the foam.

Neither of these are solutions but did provide symptomatic relief.

Fixing the norcardia problem is normally related to DO , SRT , plant configuration etc.

Regards

TerryF

How to get rid of Brown Foam

Joey Campo — Tue, 06 May 2008 14:31:06 GMT

Hi, Has there been any more research on how to get rid of NOCARDIA BACTERIA. It has taken over my plant for about two years i have tried every thing known to man to get rid of it. You name I've done it. Had a lot of ww guys to check out my plant seems there is no answer to solve this problem. Just wanted to see if there is anything that I'm over looking. The plant is very small a 10,000 gal a day. Any help on this matter will be greatly appreciated. Cell 985-517-2930. jp.campo@charter.net

Thanks for your time