Refinery slop oil management is one part of Nalco Water's comprehensive crude unit feedstock pretreatment offering. Follow this link to learn more about our best-in-class chemicals and proprietary digital technology to help improve the quality of crude charge into the desalter and reduce fouling and corrosion. Our program helps manage filterable solids, BS&W content, and asphaltene-related issues to improve desalter performance and minimize impact on the wastewater treatment plant.