Method and apparatus for treating a contaminated fluid

A process for cleaning a material with a cleaning system having system apparatus and at least one electronic device associated with the system apparatus, the at least one electronic device having a specified temperature operation range, the system having contacting apparatus, the process including contacting a material with an extracting fluid under conditions of temperature and pressure sufficient to maintain the extracting fluid at, near or above its critical point to produce a clean material, flowing the extracting fluid from the contacting apparatus to pressure reducing apparatus to lower pressure of the extracting fluid, lowering the pressure of the extracting fluid with the pressure reducing apparatus, thereby cooling the extracting fluid producing cooled extracting fluid, and flowing the cooled extracting fluid in heat exchange relation with the at least one electronic device to maintain temperature of the at least one electronic device within the specified temperature operation range; and a system for effecting such temperature maintenance.