| 摘要 |
PROBLEM TO BE SOLVED: To provide a by-type collection system enabling reliable by-type collection of plastic chips and paper from cut pieces of plastic wall paper with no adhesion of paper to the plastic chips or interminglement of plastic in paper. SOLUTION: The system is for a by-type collection method comprising dispersing cut pieces of plastic wall paper in an aqueous solution of a cellulase(s), stirring the resultant mixture to separate the substrate from the resin layer of the cut pieces and collecting paper and plastic chips by type. It includes a separation tank 10, a stirrer 20, a filtering machine 30, a plastic dispersion storage tank 50, a plastic collection net 60, a first pump 41 circulating the aqueous solution of the enzyme flowing out of the filtering machine 30 to the separation chamber 10A of the separation tank 10 and a second pump 42 circulating the aqueous solution of the enzyme discharged from the plastic dispersion storage tank 50 to the separation chamber 10A of the separation tank 10. COPYRIGHT: (C)2009,JPO&INPIT
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