Severn Trent Services offers EST wet emergency scrubbing designs including the low profile "SW" (SideWinder) ejector-driven emergency gas scrubber, the "ESW" (Ejectorless SideWinder), the time-proven "ECS" (Ejector Venturi/Packed Tower), and the popular low profile "MVP" (Multi-Venturi Packless) system. All designs use various combinations of ejectors, packed towers, pumps and/or fans to suit individual applications and installations. Depending on the scrubbing solution, ammonia and many other gases can be handled.
EST Corporation was acquired by Severn Trent Services in 2001.