The diagram illustrates the recycling process of waste glass bottles through a series of stages, commencing the process from collection to the final production of new bottles. Looking from the overall perspective, the rough outlines of the process include collecting and transporting the waste bottles, cleaning and sorting, crushing, and finally molding the liquid glass into new bottles for reusable use.
In the first stage, waste glass bottles are collected from various collection points. These recollected bottles are then transported to a recycling facility where they undergo vigorous cleaning using high-pressure water. Following the cleaning, the bottles are sorted by color into three categories: brown, green, and clear. Subsequently, the sorted bottles are transported to a glass factory where they are crushed into small pieces before being melted in a furnace at temperatures ranging from 600 to 800 degrees Celsius to form liquid glass. The molten glass is then poured into molds of the desired shapes of new glass bottles.
In the final stage, the newly formed glass bottles are transported to supermarkets, filled with products, and made ready for sale. The cycle restarts as these bottles are eventually collected again for recycling.