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Use of Biostimulants and Buffers for Upset Recovery in Paper Mill Wastewater Systems

By Heather Jennings, PE

Industrial pulp and paper wastewater is considered one of the more challenging waters to treat using biological methods, which depend on microbial activity to effectively remediate the wastewater.

Wastewater treatment systems are often influenced/impacted by increased hydraulic and/or COD (chemical oxygen demand) loading as mills add new chemicals or otherwise modify mill operations. These events oftentimes inhibit the wastewater microbial activity, causing “upsets” and, potentially, discharge-limit violations. However, providing the necessary biostimulants and buffers to the microbial system—as we describe in this case study from a paper mill in China—can significantly improve system-upset recovery time and overall operational stability. Continue Reading

The Impact of Commonly Abused and Illicit Drugs in Wastewater Treatment

By Heather Jennings, PE, Senior Project Engineer for Probiotic Solutions®

I was attending a wastewater conference and overheard an operator talking about how a drug bust turned his lagoon orange and almost put him out of compliance with his permit. At another location, I was told that the city I was visiting had been hit by an unexpected source of ammonia that almost “wiped out” their bugs. I asked an operator if it was possible that the influent to his wastewater system might have illicit drugs in it. His reply was to the effect that, although he frequently found drug paraphernalia in his screens, he didn’t know of any illicit drugs being present in his system. So, I started wondering what illicit drug impacts really have on wastewater systems. The following is what I found. Continue reading

Use of Biostimulants & Buffers for Upset Recovery at Paper Mill Wastewater System

Industrial Water & Wastes Digest has published a Probiotic Solutions® article, “Use of Biostimulants & Buffers for Upset Recovery at Paper Mill Wastewater System.”

Two specific Probiotic Solutions liquid bioremediation products were used to address process upsets at a paper mill in China. The products involved were Bio Energizer (BE)—a scientific formulation of organic acids, buffers, natural biological stimulants, micronutrients and energy systems—and Micatrol (MT), a specialized product that uses organic acid as a substrate to buffer wastewater microbial life. Continue reading

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