by Technical Expert | Sep 16, 2013 | Ask the Bugman, Wastewater |
Marketers sell bacterial or biocatalyst products by saying, “The concentration is “X” billion per gram!” The “X” is usually between 1 and 10. Selling bacteria by concentration is a popular gimmick, but it has little to do with how a product will perform in a...
by Technical Expert | Dec 28, 2011 | Ask the Bugman, Filaments, Foam |
A: Three hard-to-treat filaments are the main cause of excessive foaming in wastewater plants (WWTPs). Unfortunately, correctly identifying the filament bacteria in your system can be difficult.
by Technical Expert | Dec 28, 2011 | Ask the Bugman, Filaments, Wastewater |
Fungi, Nocardia, and Sphaerotilus Natans are three filamentous bacteria found in wastewater treatment systems (WWTPs). In small amounts, they are quite beneficial for the system as they add stability to the floc structure and keep it from breaking up or shearing. In...
by Technical Expert | Dec 28, 2011 | Ask the Bugman, Hydrogen Sulfide |
Q: What is hydrogen sulfide gas (H2S)? A: Often called “rotten egg odors,” Hydrogen Sulfide (H2S) is a colorless gas commonly referred to in some cities as sewer gas. It is highly poisonous and highly corrosive in lift stations and sewer lines. Q: How does it...
by Technical Expert | Dec 28, 2011 | Ask the Bugman, Nitrification, Unique Situations |
A: It’s possible that your oxygen concentrations are too low, (usually less than 1 ppm), and the interior of the floc particle has become anaerobic, causing the nitrate oxygen to be utilized. If only de-nitrification were this simple. In reality,...
by | Dec 28, 2011 | Ask the Bugman, Unique Situations, Wastewater |
1 BOD or plant loading in pounds Concentration of BOD in mg/l times plant flow in mgd times weight of one gallon of water equals lbs of BOD mg/l x mgd x 8.34 = lbs/day 2 MLSS in the aerator in pounds Concentration of MLSS in mg/l times volume of...
by Technical Expert | Dec 28, 2011 | Ask the Bugman, Filaments |
A: High rates of yeast growth in wastewater cause undesirable effects including bulking due to interfloc bridging, discoloring the effluent, and/or producing malodors. Yeast can be filamentous or budding, which are sometimes seen as tetrads under the microscope. The...
by Technical Expert | Dec 28, 2011 | Ask the Bugman, Sludge |
A: Anaerobic digestion uses both facultative (acid-forming) and anaerobic bacteria to degrade BOD. Anaerobic digestors are either very stable and predictable or very vulnerable. Our BioGas1 formula — with its six essential trace metals necessary for the function of...
by | Nov 14, 2011 | Ammonia Control, Ask the Bugman, Filaments, Hydrogen Sulfide, Nitrification |
[hr] A: Nitrosomonas, nitrobacter, and nitrosococcus bacteria are commonly found in the soil and water can easily wash into a wastewater plants (WWTPs). However, for WWTPs that loose nitrification or struggle with nitrification issues (e.g., during drought conditions,...
![Upflow Anaerobic Sludge Blankets (UASB Reactors)]()
by Technical Expert | Nov 7, 2011 | Ask the Bugman, Sludge |
Q: Our UASB reactor is not producing adequate sludge granulation or biomass. It starts to build biomass and get good COD removal, but then the granules disperse. We have influent that contains terephthalic acid and acetic acid and conditions that are adequate for...
