Filamentous bacteria in SBR plant ..

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Dear all , 

Could anyone kindly recommend a solution for filamentous bacteria presence on the surface of the water in SBR waste water treatment plant ?

Thanks in advance.

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14 Answers

  2. its just too much work on trying to do all that.  for some, they really need to know.  but for the rest if the world, who are busy and do not really need to know, putting in a biocleaner device can save money, time and  headaches.  

  4. Dear Mr. Mohammed Sonbol, 

    Best way of controlling growth of filamentous microorganism is to correct the operating condition in the tank. Setting appropriate anoxic period in the treatment cycle will help.   

  6. @Mohammed Sonbol sahib,  you can just add a tiny device that is an in situ bioreactor.  it will then produce probiotics that will combat the filamentous bacteria,  And you will never have to think about this.  never again will your SBR have filamentous bacteria.  boom.  easy peasy.  

  7. Dear  Mohammed Sonbol,  there are many causes of filamentous bacteria including nutrient deficiency, sludge age, organic loading rate, slug loading,  sulfur loading and others.   Contact Environmental Leverage Inc for technical support.  http://www.environmentalleverage.com/index.html

      You can send them a small (100 ml) sample for microscopic examination and they will send you a detailed technical report indicating the probable root-cause of your problem.  

    Best wishes, 

  8. JOURNAL ARTICLE

    Hydrogen Peroxide Cures Filamentous Growth in Activated Sludge

    Charles A. Cole, John B. Stamberg and Dolloff F. Bishop

    Journal (Water Pollution Control Federation)

    Vol. 45, No. 5 (May, 1973), pp. 829-836

    https://www.jstor.org/stable/25037831

    combine this with our specific peroxide, and you have the 100% biodegradable answer.

  10. I would look at your loading rates/ and and your available aeration volumes. a quick and easy way is to waste sludge which reduces O2 demand and also makes your sludge age reduced . You may need to go back and look at plant size v/s loading rate to make sure you are not overloaded. Hope this helps. Steve Ryan

  11. In the spring time when temperature changes and biology starts to pickup is the only time we have issues with foam and filamentous. We cut any mixers off and use DO only. Raise the DO reduce the MLSS by 15-20% and the plant should come around

  12. Are Filamentous bacteria leading to poor settleability (e.g. bad SVI)? We have seen many ETPs with macroscopic bulking still producing excellent water, tho.
    In event of bulking or foaming You may mechanically scrape the foam away (and carefully dispose the scum away) and/or chlorinate the return line to ox tank. 
    To fully address Your problem You should know more about its cause (lack or misbalance of nutrients, lack of substrate, toxics in feedwater, inhibitory compounds, low aeration efficiency, oversized ETP...are just my first guesses)
    HTH

  13. Good morning Mohammad, 

    My name is Sean Tierney and I am responding to your question from Chicago, IL. 

    When I first started my career in California as a polymer guy many of my customers had issues with FOG infiltration into their plants and aside from poor settling in the secondary clarifiers, they had constant battles with foam. 

    Since chlorination was not an option, they looked at introducing flocculants at roughly 5ppm as supplied ahead of the aeration basin to reduce the foam, promote settling and remove the filamentous bacteria. 

    If you’d like, please email me and I can forward our test methods for both the lab and full scale. 

    Lastly, I have an old mentor who operated an SBR plant for 35-years, he really knows his process. 

    Cheers,

    Sean Tierney

    Email: sean.tierney@elginps.com

     

    1 Comment

    1. Hi Sean, thank you for your answer. Would be much appreciated if you would invite your mentor to join (go to members tab and invite contacts) THANK YOU!