Observation- formation on top the anoxic tank in a Sewage Treatment Plant (STP)

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Observation- formation on top the anoxic tank in a Sewage Treatment Plant (STP)

Observed this formation on top the anoxic tank in an STP.

I would like help figuring out what this formation could be and how to deal with it.

Thank you!

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3 Answers

  1. Adding more mixing to pull the scum out of the corners has worked, and not worked, for getting the scum to mix and digest.  We have worked with the problem when added mixing and sprayers do not work.  Usually the problem are the slime forming bacteria (Myxomycetes - Class of organisms; the true slime molds) that hold themselves together and on the walls and corners of the tanks and pipes.  That slime layer has been a problem in many industries. Getting under the slime and breaking the glue is the answer to many of these problems.  We have developed a product that helps break the polysaccharide layers that is the bonding agent. Low dosages do the trick, and the dosage may be used when problems are observed.  About one half dosage has been used to prevent this problem.  

    Send me your email for pictures and case studies to wh@bluevalleylabs.com.  

    Reference

    The traditional idea that all life must be either be plant or animal was rejected when biologists first encountered the slime molds. The creeping somatic phase of the slime molds is definitely animal like in it's structure and physiology;  the reproductive structures, however, are plant-like, producing spores covered by definite walls.

     

    Waymon E. Hofheins

    President, Blue Valley Laboratories, Inc.

    Kansas City, MO; USA 

     

  2. I think Baradi has it right. Looks like it needs more mixing energy. We use sprayers on our anoxic zones to mix scum back in. Then again, 10 minutes with a hose would probably knock it down.

  3. The first simple answer, I think you have bad mixing or dead corner that doesn't move, or maybe lack of sludge re circulation.

    good day 

    man 

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