This work studies the method of sorting plastic bottles-waste. Currently, the recycling treatment for a different type of plastic bottle wastes is similar although they are made of different plastic material. The disadvantage of the current method is that the produced plastic is an unknown type of plastics. To perform recycling treatment of similar types of plastic bottle waste, the plastic-bottle waste needs to be sorted based on their material characteristics. We propose a sorting method of the plastic-bottle waste by using a barcode scanner. A database on plastic-bottle waste based on their barcode number, which then categorized their material characteristics, is first created. In this paper, the diagram of the sorting process is given.

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