Tag Archives: lagoon algae

Lagoon Algae Prevention and Treatment: Strategies and Methods

Summertime is boom time for algae, and it’s been all over the news lately. A bloom that appeared seemingly overnight necessitated the closure and drainage of the diving pool at the Rio Olympics. Toxic blue-green algae, or cyanobacteria, which we discussed in … Continue reading



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Wastewater Lagoon Blue-Green Algae: The Harm of HABs

We talk about algae a lot, because with wastewater lagoons, algae just comes with the territory. In facultative and stabilization lagoons, algae provide free oxygen to fuel aerobic BOD-consuming bacteria and higher life forms. Even in a properly mixed and aerated lagoon, … Continue reading



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What are these red worms in the lagoon?

We’re often in the field, visiting wastewater lagoon facilities and learning about the challenges operators face. Last week, an operator in Georgia showed us a video of lagoon sludge swarming with tiny, wriggling red worms (see video below). Since we’re always interested in … Continue reading



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Lagoon Duckweed: Friend or Foe?

Duckweed, or water lens, is a rapidly growing, invasive aquatic plant that loves wastewater lagoons due to the presence of nutrients ammonia and phosphorus. Since summertime is high season for lagoon duckweed, it seems like a good time to talk … Continue reading



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Troubleshooting Low Lagoon Dissolved Oxygen

Lagoon dissolved oxygen, or DO, is the lifeblood of the wastewater lagoon system. The bacteria and other microbes that consume biological oxygen demand (BOD) need 1.5–2 lbs. of dissolved oxygen per pound of influent BOD, and as much 4 lbs. of … Continue reading



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The Nose Knows: Lagoon Odors Give Clues to Lagoon Health

The wastewater lagoon operator has many tools at his or her disposal to determine the overall condition of a lagoon. Lagoon sampling and testing, of course, are the main methods, but even without equipment, the lagoon operator can get valuable diagnostic … Continue reading



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Using Wastewater Lagoon pH as a Diagnostic Tool

Wastewater lagoon pH is a common testing parameter that is easily taken for granted. Dig a little deeper, however, and pH can give you valuable clues about what’s going on in your lagoon and help you troubleshoot the source of effluent … Continue reading



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Troubleshooting High Wastewater Pond TSS

Total Suspended Solids, or TSS, is a standard testing parameter for wastewater pond or lagoon operators. Effluent TSS is a measurement of  the amount of solid material that is escaping with the wastewater pond or lagoon effluent, and is a … Continue reading



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Seven Signs of an Overloaded Lagoon

Is Your Lagoon Overloaded? Organic overloading is a common cause of wastewater lagoon effluent problems. In this article, we’ll define an overloaded lagoon and describe the problems it can cause, outline the seven signs to look for, and then offer … Continue reading



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Six Reasons to See Triplepoint At WEFTEC

WEFTEC, the Water Environment Federation’s annual conference, is coming up fast—September 27–October 1, 2014, at the Morial Convention Center in New Orleans, Louisiana. We’re looking forward to seeing all of you and showing you what we’ve been up to. We’ll … Continue reading



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