Published by Mohammed Sonbol, Paper effluent treatment Engineer - Packline and First Group for industrial Development
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.
Sludge
Published by Rashed Al-Sa`ed, Professor and IEWS Director
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.
Published by Eros Kaw, Biocleaner Inc. - Chief Tech Support
Www.hydroflow-se.com
Published by Mike Millard, Mike Millard, Co-Owner of SweepCLEAR, Inc
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.
Published by Dashrath Bhatter, Self Employed
Its better to check the root cause as mentioned in previous posts. Check every parameter to ensure and control in future
Probable causes
FM Ratio
MLSS
DO
Temperature
Published by Fawad Ahmed Akhtar, Wastewater Treatment & Reclaim Incharge at Feroze 1888 Mills
@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.
Published by Eros Kaw, Biocleaner Inc. - Chief Tech Support
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,
Published by Thomas Getz, President at Earth Cycle BioTechnologyLLC
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.
Published by Gino Quackels, Owner
Please read the Manual on the causes and control of activated sludge bulking, foaming and other solids separation problems. 3rd edition. 2003.
Authors: David Jenkins, Michael G. Richard and Glen T. Daigger.
You will get lot of details regarding filamentous or bulking problems.
Published by Muna Hindiyeh, Associated Professor at German Jordanian University. Senior Water Quality Expert
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
Published by steven Ryan
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
Published by bruce sorenson, Bell County Water Control and Improvement District
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
Published by Ing.Tiziano Zampollo, Employee at Water Engineers & Consultants - WEnCo
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
Published by Shaun O’Reilly, Professional
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!
Published by Trudi Schifter, CEO and Founder AquaSPE
What problem are they causing?
Published by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health