To provide an arrangement for resin treatment having such a construction that a grinder for a resin object and a volume reducer for dissolving a ground resin object to reduce its volume are set up separately and connected to each other closed loop-fashion to carry out an efficient resin treatment while ensuring the odor of the solvent used in the reducer not to leak outside, and to provide a method for resin treatment using the arrangement.

This arrangement 10 for resin treatment is designed to grind and dissolve a resin object and comprises a grinder 12 for grinding an object, a volume reducer 14 for dissolving an object ground by the grinder 12 in a solvent 32 to reduce its volume, a conveyance channel 18 for feeding a ground object discharged from the grinder 12 into the volume reducer 14, and a communicating path 20 connecting the inside of the volume reducer 14 and that of the grinder 12 with each other; wherein the grinder 12 and the volume reducer 14 are connected with each other closed loop-fashion.