Band 7.0

The diagram illustrates how wasted bottles made from glass are recycled and delivered back to the store. Overall, there are 3 main stages involved in the whole glass bottle recycling process, beginning with collecting wasted jars and finishing with the delivery of the products for sale.

In the first stage, wasted glass jars are deposited at collection points where they are loaded onto trucks and transported to a glass treatment plant. In the second stage, several steps are taken in order to transform wasted glass to recycled products. Firstly, bottles are washed under high-pressure water to remove any impurities, following that they are classified into 3 categories based on the colour, namely transparent, green and brown glass. They are then transferred to glass factories in which they are crushed into debris. In the next step, those pieces are melted in a glass-melting furnace at around 600 to 800 degrees Celsius. After that, recycled liquid glass together with new liquid glass are moulded into new products.

In the last stage, the glass is used to bottle different products, and then sent back to the supermarket ready for sale. (185 words)

Một số lỗi
Lỗi dùng từ:
wasted bottles / wasted jars → nên là waste bottles / used bottles
debris → nên dùng fragments / pieces / cullet