Existing containers include iron cans, aluminum cans, paper and plastic containers, which have different recycling characteristics, but iron cans are superior to other packaging material containers in recycling treatment.
Based on the imminent implementation of the international environmental management standard ISO-14000, tinplate cans with low pollution, recyclability and resource-saving characteristics will have a broader space for development in future packaging applications:
1. Low pollution:
The main raw material tinplate in the iron can container is actually environmentally harmless and can be naturally decomposed, because when the iron can exists in the environment, it can be naturally oxidized and returned to the original iron oxide state, returning to nature, so the stacking of scrap iron cans can be decomposed by time, and will not remain to cause environmental pollution. At the same time, it is not necessary to cut down trees to make iron cans, so as not to destroy the ecological balance.
2. Recyclable:
The iron can itself has a characteristic that other packaging materials do not have - it can be adsorbed by magnets, so that the magnetic separator can be used to separate the iron can from the waste by magnetic force, and this property can easily achieve the effect of recycling 80% of the iron can in the garbage. The invention of the environmental protection cover not only makes the use of iron cans safer and more hygienic, but also effectively reduces the amount of garbage, which has direct and obvious benefits for recycling operations.
3. Resources:
In terms of removing other polluting residues on iron cans, shredder equipment has been developed, which can effectively remove more than 98% of pollutants and provide good quality scrap iron filings. In addition, the United States also pointed out that the existence of aluminum easy-to-open covers is conducive to scrap iron remanufacturing, because it can reduce the amount of hot metal used in steelmaking and reduce the overall cost of steel manufacturing. In addition, in terms of energy saving, the report pointed out that the use of tinplate scrap scrap to produce steel can save about 230m3 of natural gas per ton of scrap compared to iron ore production, so the recycling process of iron cans can reduce the impact on the global environment and energy, in line with future product trends.
