Described is a method for event localization within a distributed sensor array using a plurality of sensor nodes. or higher and the pressure reaches as high as 7 to 12 MPa. The second system outlet is separated from the system inlet by a weir that prevents the fluid from passing into the second system outlet when the fluid is below a predetermined height, and allow at least a portion of the fluid to pass into the second system outlet without passing through the treatment chamber when the fluid is above a predetermined height.