A Holistic Approach to Phosphorus Corrosion Control
Kevin Sullo (AquaSmart Inc)

Limiting corrosion, scale and bacteria are common challenges for drinking water. Removing phosphorus is a common challenge for wastewater. These issues become ever more challenging in the face of new regulations, technologies, monitoring, and public awareness. What can emerge is an acute focus on individual water quality parameters. At times, solving one problem introduces another. The upcoming LCRR addresses this, The water system must evaluate the effect of the chemicals used for corrosion control treatment on other drinking water quality treatment processes. We explore the relationship between corrosion control, other water quality treatment processes, and introduce a novel chemical additive which addresses these issues holistically using significantly less phosphorus.

Water exists in a state of chemical equilibrium. Drinking water chemistries exist as causal relationships with each other. With more demand for phosphorus in the production of EV batteries and discharge limits for wastewater becoming more stringent. Tackling corrosion control and becoming increasingly aware of technologies that can optimize and reduce chemical usage becomes paramount. Part of our talk has a live demonstration in which we break down the corrosion process, sequestration, and how your distribution system drives treatment decisions around oxidation, pH, DBP, and many parameters beyond just lead / cooper. Historically, to prevent lead and copper release in drinking water, high levels of phosphorus are often used, which can require enhanced coagulation / filtration in wastewater plants. Potential solutions to these issues are introduced, including methods of corrosion inhibition, sequestering, disinfection, and wastewater treatment.