Type 0411


Biological Products:



Bioaugmentation products for Wastewater applications in Papermills, Refineries, Chemical, Tanneries, Municipalities, Textiles, Steel, Agriculture, Animal feedlot,  Gun Powder plant, Food and Beverage- Dairy Products, Orange Juice factory, Wineries, Cookie factory, Vegetable processing plant, Meat packing, Barbecue Restaurant, Aquaculture, Ornamental Ponds for algae control, CAFO, Nursing homes, Military, Campgrounds, Universities, Regulatory agencies


Lab Services:



Filamentous Identification Lab Service. One reason to identify filaments is to determine the filaments characteristics and then determine the type present.  If the type is found out, a root cause can usually be associated with a particular filament.  If the cause is known, then a correction can be made to alleviate problems. Chlorination is only a quick fix.  Without process changes, filaments will grow back after chlorination.

Wastewater Biomass Analyses and Cooling Tower Analyses also available


Training Materials:



Training is an integral part of any job. Not everyone is at the same level of training. Many people want beginning concepts and basics. Some need technical information or troubleshooting. Some want equipment, technology or process information.

We have developed a full set of Basic training, Advanced training, Filamentous Identification the Easy Way as well as custom training CD's Manuals. We also provide hands-on training classes and soon will have an Online "E-University".




 Type 0411

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Type 0411 filamentous identificatio in wastewater



We hope you like the new look of our Filamentous Bacteria Identification Pages

If you would like more information on filaments, you might want to consider purchasing our Filamentous Identification the Easy Way Training materials.

We also have our lab that can perform a Filamentous identification lab analyses of your own MLSS for more information


Type 0041

This filament may look different. It may be wider in some municipalities, longer in industries depending upon whether it is clean or has attached growth. Don't get overly technical.  When trying to determine species, stick to the basics, and focus on the causes and controls of the filaments present. The main point of any filamentous identification is not to get a PhD, but to fix your plant!



 Relatively small, non-motile filaments (50-150 µm). Bent or irregular shaped filaments with no branching. Cells are rounded and appear as elongated rods (0.9 x 1.5 µm). No sheath and no attached growth.  Cell septa clearly observed, with  Indentations at cell septa.  Filaments are found extending from the floc structure. Usually easy to identify due to elongated cell structure.  The filament staining is Gram negative and Neisser negative. No Neisser stain (granules), Sulfur granules, negative S granules (S test), no other cell inclusions.


Similar Organisms:

Type 0961 is similar although longer cells and more square ended cells. Type 0211 is similar but a smaller version.  All three have the same cause and controls.



This filament is usually found in environments where there is high septicity.  It  very rarely causes bulking and never bridging since it is too small.  This filament is usually found in environments where there are septic wastes, or wastes with sulfides or organic wastes, it can also be associated with the generation of organic acids.



If the S test is positive, the cause is septic wastes or presence of sulfides and can be remedied by pre-aeration or pre-chlorination. RAS chlorination should be used.  Check clarifier holding times or primary clarifier or EQ tanks for septic conditions. Also check for septic supernatant from dewatering processes.



Rarely seen due to it's small size. Common in septic environments but often overlooked. Never causes bulking. Usually present with other septic filaments.


For more information on Filamentous Identification

 Type 0961

 Type 021N

More photos to come. . .


If you need more information on our Filamentous Identification the Easy Way Training CD or on Internet training on Filamentous bacteria, causes and controls.

How and why on Wastewater Biomass Analyses

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Wastewater Training CD's