The diagram illustrates how to make recycled paper. Overall, there are four main steps, starting with collecting used paper and ending with producing new paper.
Firstly, the old documents are collected and moved into the factory. Then, the workers put them on the conveyor belt and transfer them to the production process. They will meet a machine that pulps old books to ensure that all the papers are in a small cut and easy to step into the next step. After that, the result has to go through the filtering and slip accurately into the combination of water and soap.
Following that, the complex is guaranteed to be clean for the new version, so the cleaning step in stage 3 will help them wash the dirt and keep them clean. Finally, after the mixing goes through all the steps produced, they will be put on the conveyor belt again and experience the heated rollers. It helps change their shape from the pulp to the rectangular paper and the recycled papers are renewed.