The diagram illustrates the process of producing recycled paper from used paper. Overall, the procedure consists of four main stages, beginning with the collection of waste paper and ending with the production of new recycled paper.
Initially, used paper is transported on a conveyor belt and fed into a large container, where it is mixed with water and chemicals to create unfiltered pulp. This mixture forms the raw material for the following stages.
Next, the pulp is passed through a filtering system, which removes larger unwanted materials and impurities. Once the pulp has been filtered, it enters the cleaning stage. Here, water and soap are added, while air is injected into the mixture to separate and eliminate the ink. Additional water and chemicals are then introduced to produce cleaned pulp.
In the final stage, the purified pulp is spread onto a moving conveyor belt. As it travels forward, excess water is drained away before the material passes through a series of heated rollers. These rollers compress and dry the pulp, transforming it into finished recycled paper, which is then rolled up and prepared for future use.