Recovery system and method for waste polarizer

A recovery system and method for waste polarizer is provided. The recovery system includes a first and a second extraction units, a first and a second separation units, and a purification and concentration system. The first extraction unit is for extracting fragments of the waste polarizer containing iodine followed by separating out an iodine-containing extract and waste polarizer plastic fragments through the first separation unit. The second extraction unit is disposed after the first separation unit for re-extracting the waste polarizer plastic fragments followed by separating out re-extracted solution and the waste polarizer plastic fragments through the second separation unit. The purification and concentration system includes a plurality of filtration units, membrane separation units, and distillation and concentration units connected in series. The filtration unit is for receiving the iodine-containing extract to filter out jellies and obtain an iodine-containing filtrate. The membrane separation unit