The diagram illustrates the process by which recycled paper is produced from waste materials. Summarise the information by selecting and reporting the main features and make comparisons where relevant. Write at least 150 words.
The provided information outlines the multi-stage process involved in producing recycled paper from waste materials. The journey commences with the collection and transportation of discarded paper to a recycling facility, where it undergoes crucial initial stages of sorting and contaminant removal. Different grades of paper are separated, and non-paper items like plastics and metal are extracted. Subsequently, the sorted paper is converted into pulp by being mixed with water and chemicals in a large vat, breaking it down into a slurry. This slurry is then subjected to screening to eliminate any remaining impurities. A significant step in the process is de-inking, achieved through chemical treatment and washing, which purifies the pulp. Following de-inking, the pulp may be bleached to achieve the target whiteness. The final phase involves spreading, pressing, and drying the cleaned pulp to form new paper sheets, which are then ready for commercial use. This systematic transformation effectively converts waste into a reusable product.
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