The environmental protection effects of using glass bottles are mainly reflected in aspects such as resource conservation, pollution reduction, and promotion of sustainable development, as follows: - Conservation of natural resources: The main raw materials for glass are quartz sand, soda ash, feldspar powder, etc. Recycling one ton of waste glass can save 720 kilograms of quartz sand, 250 kilograms of soda ash, and 60 kilograms of feldspar powder, reducing the exploitation of these non - renewable resources and protecting the natural environment. - Reduction of energy consumption: It takes 2.671 gigajoules per ton of energy to process raw materials into glass, while melting broken glass and processing it into glass products only requires 1.886 gigajoules per ton. Processing each ton of broken glass into finished glass products can reduce a large amount of energy consumption compared to producing glass from raw materials. - Reduction of carbon emissions: During the glass melting process, using waste broken glass can reduce the release of approximately 150 kg of CO₂ from the decomposition of carbonates in the glass raw materials. It is estimated that for every 10% increase in waste broken glass, 2.5% of energy consumption can be saved. When the proportion of waste broken glass in the glass raw material formula reaches 60%, theoretically, energy consumption can be reduced by 6%, and carbon dioxide emissions can be reduced by about 5% - 20%. - Reduction of landfill waste volume: Glass bottles are difficult to decompose naturally. If not recycled, they will occupy a large amount of land resources. Recycling and reusing glass bottles can reduce waste volume, lighten the workload of the sanitation department, and save land for landfilling waste. - Reduction of environmental pollution: Glass does not cause soil or air pollution in the environment. In contrast, plastic packaging, when it enters the environment, can affect soil health, cause marine pollution, and the chemicals it contains may also affect the health of animals, plants, and humans. Replacing plastic bottles and other packaging with glass bottles can reduce such pollution. - Promotion of sustainable consumption: The full recycling and utilization of glass bottles can encourage the public to develop habits of emphasizing environmental protection and sustainable consumption, promoting the transformation of society as a whole towards sustainable development. - Driving the green transformation of the industry: Currently, progress has been made in the lightweight technology of glass bottles. "Light - weight bottles" of the same volume can achieve a weight reduction of more than 20% and an energy saving of more than 15%. It can also drive carbon reduction in the entire chain of production, packaging, warehousing, and logistics, promoting the green and low - carbon transformation of the entire industrial chain.
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