Dutco Tennant LLC

  In membrane treatment plants, mineral build-up usually does not cause a sudden problem. Instead, operators may notice a slow drop in water flow, more frequent cleaning and extra work for maintenance teams. For plants in the UAE and GCC treating seawater, brackish water or water for reuse, these problems can affect daily operations and production planning. The key question is how treatment chemicals, concentrated antiscalants and RO vessel design can each help deal with these challenges in different ways. The Problem: Scaling Is More Than a Membrane-Surface Issue Minerals such as calcium carbonate, sulfate and silica can accumulate on RO membranes, affecting water production and increasing cleaning needs. Repeated maintenance can interrupt plant schedules, while conventional RO arrangements may also involve numerous vessels and associated components that require considerable space. For desalination and water-reuse facilities, controlling mineral deposits while considering equipmen...