At present, there are several types of glass bottle recycling and utilization: casting flux, transformation utilization, recycling, raw material recycling, and reuse, etc.
As a casting flux
Broken glass can be used as a flux for smelting cast steel and cast copper alloys, covering the melt to prevent oxidation.
Transformation and utilization
Transformation utilization is a kind of recycling method that needs to be developed urgently. In the future, there will be many new technologies that can bring value-added for transformation utilization. After the pre-treated cullet is processed into small glass particles, it can be used for the following purposes:
(1) The use of glass fragments as a combination of road surfaces has been tested in the United States and Canada for several years. It has been confirmed that using glass fragments as road fillers can reduce vehicle lateral slip and overturn accidents compared with other materials; the reflection of light is appropriate; the road surface is worn The condition is good; the snow melts quickly and is suitable for use in places with low temperatures.
(2) Mix crushed glass with building materials to make building products such as building prefabs and building bricks. The practice has proved that products made from agricultural production system materials as cementing agents have high dimensional accuracy and strength, and low production costs.
(3) Shattered glass is used to make building surface decorations, reflector materials, arts and crafts, and clothing accessories, with beautiful visual effects.
(4) The mixture of glass and plastic waste and building materials can be made into synthetic building products.
After the recovered glass is pretreated, it is reheated and melted to produce glass containers, glass fibers, and the like.
Raw material recycling
The recycled glass cullet is used as an additive raw material for glass products because adding an appropriate amount of cullet helps the glass to melt at a lower temperature.
At present, the reuse scope of glass bottle packaging is mainly low-value and large-volume commodity packaging glass bottles. Such as beer bottles, soda bottles, soy sauce bottles, vinegar bottles, and some canned bottles.
The recycling of empty glass bottles can save a lot of resources and energy, which is worthy of promotion and promotion.
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