Type 0675


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 0675


Latest News!

Type 0675 filamentous identification in wastewater

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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 0675

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).  Straight, smoothly curved or bent filaments with no branching.  Cells are square (0.7-1.0 x 1.0 µm) and contained in a tight fitting sheath.  No indentations at septa.  Filaments are found within the floc structure causing open, lacy floc or radiating outwards causing inter-floc bridging.  The filament staining is Gram negative  or Gram variable when in the floc structure with attached growth and Neisser negative. No sulfur granules. Usually heavy attached growth when observed inside the floc structure and sometimes no attached growth when extending into the bulk solution.  Sheath is difficult to detect except when missing cells.


Similar Organisms:

Type 0041 is similar although larger in diameter and is usually more Gram positive.  Type 1701 can be similar although it is gram negative and the cells are round ended.  Type 1851 is similar although it occurs in bundles and doesn’t have as much attached growth.  Type 0914 and Thiothrix II are similar although these two have intracellular sulfur granules and don’t have attached growth.



This filament is usually found in environments where there low F/M with a long MCRT.  It is typically a backbone filaments and very rarely causes bulking or bridging.  In industry  N or P deficiency may also be a cause.



F/M can be changed by increased sludge wasting or changing from complete mix to plug flow.  RAS chlorination should be definitely used if in the rapid growth phase. After chlorination, sheath may still be present and interfere with SVI.  Increasing N and P levels has been shown to reduce bulking. Nutrient deficient wastes can be checked by effluent values of residual NH3 and o-PO4 and should be supplemented if necessary.



0675 ranks 10th in number of predominance.  Common in sludge in low abundance.  Can be beneficial at low abundance as a backbone structure for the floc.


For more information on Filamentous Identification

 Type 0041

 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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