SEH won the first annual Sherwin-Williams Impact Award for the rehabilitation of a domestic anaerobic digester for the city of Austin, Minnesota.
The project won the award because it “demonstrated project excellence in using high-performance protective coatings to address corrosion-related problems across a variety of water and wastewater structures, such as storage, transmission, and treatment facilities.”
The award was announced at the Water Environment Federation’s WEFTEC conference on September 26, 2016, in New Orleans, Louisiana.
Related Content: Wastewater Engineering Insight
The project addressed the challenges of restoring two 60- and 80-year-old anaerobic digesters for the City of Austin, Minnesota. The original structural concrete was still sound, but concrete used in the 1980s had become severely deteriorated., with numerous cracks in their covers causing pressure losses. SEH, along with project partners, undertook extensive trial and error to properly seal the anaerobic digesters, which had many difficult-to-access areas.