Most Wanted Microbes – Coliforms

From the editor: This is the ninth post in an ongoing series profiling microorganisms of particular significance in water and wastewater systems. In this series we will cover microorganisms of many types including some that are beneficial, inhibitory and pathogenic. Coliforms are a group of gram-negative, rod-shaped bacteria that generally belong within the family of… Read More

Most Wanted Microbes – Cyanobacteria (a.k.a. Blue Green Algae)

  An image search for the term “algae” quickly reveals a page filled with photos of green-colored surface water. Many of these green blooms that often invade our lakes and rivers are well known by water treatment professionals and the public as ‘blue-green algae’. It’s responsible for beach closures, public health risks, and creates significant… Read More

Hurricane Season

  With the start of the 2018 hurricane season right around the corner, many people living in the Caribbean and along the Gulf of Mexico and Atlantic coasts of North America are holding their collective breath. The 2017 season produced a series of storms that resulted in significant loss of life as well as billions… Read More

Most Wanted Microbes – Brain-Eating Amoeba

  From the editor: This is the seventh post in an ongoing series profiling microorganisms of particular significance in water and wastewater systems. In this series we will cover microorganisms of many types including some that are beneficial, inhibitory and pathogenic.  Naegleria fowleri or brain-eating amoeba is a thermophilic, pathogenic, single celled eukaryote. They are typically found in… Read More

Hidden in Plain Sight – Nitrifying Bacteria in Monochlorinated Distribution Systems

  If you are using heterotrophic plate counts (HPCs) to identify nitrifying bacteria – you won’t find them. As it mentions in the name, HPCs only measure heterotrophic bacteria. These organisms feed off organic carbon compounds like fats, carbohydrates, and proteins while autotrophic bacteria produce their own food from basic energy sources like sunlight or… Read More

Most Wanted Microbes: Cryptosporidium

  From the editor: This is the sixth post in an ongoing series profiling microorganisms of particular significance in water and wastewater systems. In this series we will cover microorganisms of many types including some that are beneficial, inhibitory and pathogenic.  Cryptosporidium, commonly known as Crypto, is a cyst-forming parasite commonly associated with the faecal… Read More

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