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".






Latest News!

This page requires JavaScript. Please enable JavaScript in your browser and reload this page.

Zooglea in wastewater



We hope you like the new look of our  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


What is going on in my system? There is all this slime in my clarifier and in my sludge dewatering system! Well, many times this can be either polysaccharide bulking or Zoogleal bulking.

This organism may look different. It may be fingered or amorphous in some municipalities, have more slime in industries depending upon whether it is caused by nutrient deficiency or low pH. It may be there are more than one versions of this bacteria. Technically consider this a group of bacteria  with similar causes and controls. 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!



This type of bacteria can be extremely large, non-motile bacteria. The bacteria staining is usually Gram negative and Neisser negative. There are usually no sulfur granules present. Zooglea can be "fingered or amorphous". Zoogleal bacteria also have the ability to denitrify.


Similar Organisms:

Zooglea typically have the presence of excessive amounts of polysaccharide coating. They can grow usually as "amorphous" clumps or "fingered" like a tree. Normal floc forming bacteria can appear to look like zoogleal bulking and cause excessive polysaccharide coating if they have been stressed or are nutrient deficient. Check the polysaccharide coating with India Ink stain under the microscope. The polysaccharide coating of zoogleal bacteria is always high or excessive.



This bacteria is usually found in environments where there is a high F/M ratio where the soluble organic compounds are readily bio-degradable. The pH is usually lower. Zooglea can often be present in selector systems in activated sludge. Zooglea can also be an indication of nutrient deficiency (Nitrogen or Phosphorus).



In the MLSS, the pH can be increased to above pH 7. Nutrient addition is usually recommended. Control of nutrient addition is critical. The type of nutrient used is also critical. It if takes the bacteria too long to access the nutrients in a high BOD loading environment or the nutrients are slug fed but not at a rate consistent with slug loadings and is not sufficient when needed by the bacteria, then zoogleal bulking can occur. Many times, a plant uses excessive levels of polymer in the clarifier to try to settle the slimy, bulking sludge. Dewatering of this type of sludge is very difficult also. Large amounts of polymer are required and poor water drainage results. The easiest fix is to adjust the "critical 5" in the plant. Addition of micronutrients or bacterial supplements can be added if high BOD loading is the cause. Do not use Chlorine. This will only increase the amount of slime forming bacteria.



Zooglea is a cause of bulking and poor dewatering of biosolids.


For more information on Filamentous Identification


 Yeast and Fungi

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

What is in a name?

Wastewater Bioaumgentation Products

Wastewater Training Classes

Wastewater Training CD's