1. Resource conservation (capacity reduction, reduction) is a good way to prevent problems from the source.
Resource saving (capacity reduction, reduction) refers to reducing or suppressing the generation of plastic waste, including minimizing or using as little as possible what can be used or not used; Alternatively, by filling with natural organic or inorganic materials, the amount of plastic used can be reduced, or by improving product quality, increasing functionality, extending lifespan, and using multiple items, the consumption of disposable plastic packaging can be reduced. Thinning refers to changing the raw material formula and product structure design to achieve lightweight and thin-walled products while ensuring application performance. Capacity reduction refers to reducing the volume of plastic waste through methods such as compaction, dissolution, and defoaming, as well as developing appropriate packaging to suppress excess packaging.
2. Recycling is an important measure for environmental harmlessness.
Recycling is not just a technical issue, but more importantly, it involves a whole set of systematic engineering problems such as legislation, recycling, production, inspection, and sales. It is an effective method actively developed by countries to ensure the sustainable development of the national economy and the coordination of economy, resources, and environment. Overall, a significant portion of plastic waste is easily recyclable and reusable. However, for disposable plastic waste, efforts should be made to recycle and utilize materials, heat, fuel oil, chemicals, etc. that are easy to recycle, have recycling value, and are cost-effective according to the type, quality, quantity, flow direction, and treatment methods of the waste in different regions. This not only benefits environmental protection, but also has significant implications from the perspective of conserving the Earth's limited resources and effectively utilizing renewable resources. However, at present, recycling and utilization will face many technical and economic challenges in waste classification, collection, establishment of recycling systems, research and development of efficient recycling technologies and equipment, and product directions for recycled materials. It is necessary for the government and the private sector to increase scientific and technological investment and work together as a key issue to study and solve.
3. Harmless (biodegradable)
In real life, there are many disposable plastic waste materials that are difficult to collect, such as compost bags, garbage bags, lightweight plastic packaging bags used in supermarkets and morning markets, or even if they are forcibly collected, the economic benefits are poor or even ineffective, such as Chinese tableware, plastic film, etc. Degradable plastics are more suitable for these fields. The use of garbage sorting equipment to degrade plastics has the following characteristics:
① Practicality: Its application performance and hygiene performance are similar or equivalent to ordinary plastics;
② Degradability: After completing its functional use, it can degrade quickly under natural environmental conditions and become harmless fragments or debris that are easily absorbed by the environment;
③ Safety: The substances generated during the degradation process and those remaining after degradation are harmless or have no potential harm to the environment;
④ Economy: The price is on par with or slightly higher than similar ordinary plastic products. Therefore, for disposable plastic products that are large in quantity, scattered, dirty, difficult to collect, or even if forced collection is economically unreasonable, biodegradable plastics are more suitable. They can be degraded and broken into harmless fragments in a short period of time to achieve the goal of reducing plastic waste volume, reducing or inhibiting environmental pollution. And over time, it can eventually completely degrade and return to nature.
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