Phosphate and phosphonate chemistries for deposition and corrosion control have dominated industrial cooling applications for several decades. The ubiquitous use in the industry was a result of regulations eliminating the use and direct discharge of heavy metals such as chromium and instituting strict limits on the use of molybdate and zinc. Phosphorus-based corrosion control programs are non-toxic versus the metal alternatives. Unfortunately, phosphorus chemistries are a micronutrient that can cause algal blooms when discharged, biofilms within the industrial system, and dangerous microbiological growth such as Legionella. Phosphorus discharge limits are becoming more stringent to the extent that no added phosphorus is being required based on discharger permits. Presented here is a nutrient-free industrial cooling corrosion control program that was designed to engineer specific surface passivation films to meet regulation and performance criteria. The insight provided by understanding the surface chemistry connection between water quality and chemical treatments has allowed the development of engineered film technology.

Industrial water corrosion control with nutrient free chemistries to minimize algal blooms and meet current and future discharge limits

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.