The SLSS employs "cross-flow" filter technology for the removal of radioactive solids from a mixed supernatant using a continuous concentrating process, as opposed to the more conventional "once-through" filtration process. The filtration equipment provided includes a "backpulse" crud removal system, and an acid/base chemical injection system to provide periodic thorough cleaning and decontamination of the filters and process equipment. The equipment is mounted inside a weatherproof enclosure on a single skid, which houses all of the piping and components required for the separation process.  The skid is provided with significant radiation shielding to protect personnel from exposure to the high activity fields resulting from process concentration.  Process equipment includes two inertial filters, main circulation pump, filtrate storage tank, backpulse system, chemical tanks and pumps, and required process piping.  Complete PLC control, instrumentation and monitoring systems are also provided.  Control is fully automated and comes complete with a PC based graphical user interface.