An NMR/MRI-based integrated system for analyzing and treating of a drilling mud for drilling mud recycling line; the system comprising drilling mud recycling equipment; an NMR/MRI device configured to provide at least one image of at least a portion of the drilling mud at least one characterized recycling step in the drilling mud recycling line; and a processor for analyzing and controlling the recycling of the drilling mud; wherein the NMR/MRI-based integrated system is operating in a method of analyzing the NMR/MRI image online; operatively communicating results of the analysis to the drilling mud recycling equipment; and online feedback controlling at least one step in the recycling of the drilling mud recycling equipment, thereby controlling automatically at least one step in the recycling of the drilling mud recycling.