{"id":37057,"date":"2023-02-13T13:36:16","date_gmt":"2023-02-13T13:36:16","guid":{"rendered":"http:\/\/st.web-sitemap.skylfx.com\/?post_type=case_studies&p=37057"},"modified":"2024-06-17T14:01:32","modified_gmt":"2024-06-17T14:01:32","slug":"opening-the-door-to-better-pretreatment-less-cost-and-improved-performance","status":"publish","type":"case_studies","link":"http:\/\/st.web-sitemap.skylfx.com\/proof\/case-studies\/opening-the-door-to-better-pretreatment-less-cost-and-improved-performance","title":{"rendered":"Opening the Door to Better Pretreatment, Less Cost, and Improved Performance"},"content":{"rendered":"

A commercial steel door frame manufacturer faced a critical issue when the local wastewater treatment facility detected high metal levels in its effluent, leading to substantial fines. The manufacturer urgently needed a solution to bring their system back into compliance and avoid more stringent regulatory actions.<\/span><\/p>\n

Hubbard-Hall was called in to assist and quickly identified that the switch from a press brake to a roll former in the production process had been fracturing the electro-galvanized coating on the steel, causing elevated zinc, nickel, and other metal levels in the waste discharge. The solution involved two fundamental changes: converting the four-stage pretreatment system to a closed-loop zero-discharge system to eliminate waste going to the drain and switching to zirconium-based pretreatment chemistry to handle the closed-loop process.<\/span><\/p>\n