The diagram given illustrates the way in which aluminium cans are recycled for reuse in commercial production.
Looking at the illustration, it is immediately evident that this is a manmade linear process that requires a combination of both human labor and machinery, consisting of eleven distinct stages and taking approximately six weeks to complete. The process begins with the collection of used aluminium cans and ends with the production of new cans ready for reuse.
In the first step, waste cans are collected and then deposited at a recycling facility. After this, they are washed with water so that dirt and residue are removed. Then, the cans are crushed into small pieces, which are processed further to ensure uniformity. Once this has been completed, the aluminium is treated with chemicals to erase any remaining impurities.
At the sixth stage, the clean aluminium is heated until it melts completely. Next, it is poured into moulds, after which it is weighed to meet standard requirements. Having been measured, the aluminium is rolled into flat sheets. The process ends when the finished sheets are used to manufacture new cans for future use.