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Wastewater

Biotifx Market Case Study: Industrial Wastewater

  • MDG
INTRODUCTION Industrial wastewater systems are found in the majority of manufacturing facilities that use water in their manufacturing process. This includes food and beverage, pulp and paper, chemical processing, petroleum, textile and steel industries. As a rule, industrial wastewater is relatively high strength and is subject to extreme characteristics.  Industries are being driven to explore and invest in new approaches to treatment.
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Biotifx™ Market Case Study: Lagoons

  • MDG
INTRODUCTION Lagoons are a very common wastewater treatment design worldwide. Wastewater treatment facilities utilizing lagoons entirely or as part of a larger system can be found in municipalities, industry and agriculture.  Lagoons are an older method for wastewater treatment with the majority of lagoon systems currently in operation being installed 50-20 years ago. Typically, lagoons are thought of as requiring low maintenance and cost
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Microbial Discovery Group To Exhibit At AWT 2016

  • MDG
  • June 22, 2016
Microbial Discovery Group To Exhibit At AWT 2016       Microbial Discovery Group (MDG) will be exhibiting at the 2016 AWT Convention and Exposition in San Diego on September 7th-10th. This event is dedicated to bringing together professionals in the industrial water treatment industry and offers opportunities for education, product and partner exploration, and business connections. This will be MDG’s third year
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Denitrification and Floating Sludge

  • MDG
  • November 25, 2015
Denitrification and Floating Sludge What is Denitrification? Denitrification is the conversion of soluble nitrate to nitrogen gas in the nitrogen cycle. For denitrification to occur, three factors are needed: Presence of Nitrate Anoxic conditions (no free dissolved oxygen) A carbon source (soluble BOD) Floating Sludge Denitrification is useful and  desired in  certain anoxic zones designed to remove nitrogen. However, the
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MDG ANNOUNCES TWO NEW HIRES

  • MDG
  • October 30, 2015
FRANKLIN, WI. - Microbial Discovery Group LLC (MDG) announced two recent additions to the company's Biotifx™ wastewater team to meet the needs of their growing workforce and market expansion. Michael Kastel was named Wastewater Salesmen and Dan Romanek was appointed Technical Service Manager. Michael comes with experience within the field of sales, having spent past years with Cintas, RAMSCO and Dynamic Contracting Services. Michael will
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Understanding Wastewater Toxicity and Inhibition

  • MDG
  • October 21, 2015
Toxicity vs Inhibition It is important to realize that in wastewater processes, there are many genres of bacteria that are responsible for wastewater treatment. The different genres respond differently to system stresses depending on their sensitivity of the organisms and their enzyme systems.  For example, nitrobacter are extremely sensitive to changes in temperature, pH, and low concentrations of substances such as quaternary ammonium,
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Sludge Bulking Versus Filamentous Bulking

  • MDG
What is Bulking Sludge? By definition, a bulking sludge is a sludge that has a sludge volume index (SVI) of >150 mL/gram. In practical applications, the SVI for each plant (where problems of solids loss over the clarifier weirs) is site specific due to hydraulics and solids loading rates. In simple terms, if the sludge doesn’t settle well in the clarifier, it may be a bulking sludge. What Are The Causes for Sludge Bulking? Fats,
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What is Your Biology Telling You? – Zooglea

  • MDG
  • September 28, 2015
Zooglea can cause foaming and bulking (poor settling) due to their thick polysaccharide (slime) capsules if present at a high enough abundance. Common control strategies include decreasing septicity, step feed, and lowering the F/M ratio. At low abundance, zooglea are not problematic as they are floc forming bacteria. At a high abundance, zooglea can cause foaming, bulking, and poor dewatering of sludge. Reference: Richard et al
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Wastewater Foaming Problems

  • MDG
  • August 17, 2015
Identifying Causes of Foam The cause of foaming should never be assumed. If there is foam in your plant, it is recommended to perform a microscopic evaluation of the foam and mixed liquor. As a general rule, if the organism is much more concentrated in the foam than the underlying MLSS, this can be associated with the foam. Dilution of the foam is necessary for microscopic evaluation, because foams are highly concentrated. There are many
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Did You Know – Hydrogen Sulfide

  • MDG
  • August 16, 2015
Hydrogen Sulfide Between 2001 and 2010 the Bureau of Health and Labor Statistics reported 60 deaths due to hydrogen sulfide inhalation. At low concentrations, hydrogen sulfide has a "rotten egg odor". At higher concentrations (20-30ppm), it paralyzes the respiratory center of the brain and olfactory nerve and can't be smelled. Hydrogen Sulfide may be found in sewers, collection systems, confined spaces, and any other potential area where
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