One of the most widely used acid recycling systems in the world, the Eco-Tec Acid Purification Unit, APU®, eliminates bath dumping by removing metals as they dissolve into the pickling acid. Since 30% - 70% of original acid is lost in bath dumping before being used, the APU® dramatically reduces acid and related waste treatment expenses.

With consistent bath chemistry, pickling performance is assured. With metals at low levels, further improvements are realized in cooler running temperatures and reduced generation of sludge and fumes. The APU® uses a resin sorption process and simple water wash to recover acid. The net result is a virtually continuous process for acid purification.

The Eco-Tec MicroPur™ is a version of the APU® designed in a range of sizes to accommodate the small to mid-sized pickler.

APU® Stainless Steel Information
ADI 3000 Information