Tetra Pak's most common recycling method is to take Tetra Pak to a paper mill for re-pulping: Tetra Pak is packed in a large container filled with water, and then these materials are squeezed into round objects by extremely high friction and water pressure (hydraulic pulping). The fibers in the pulp will absorb water, so they will be separated from other substances, such as aluminum foil and polyethylene. Through this process, we can get paper pulp and use it to make other paper products, such as toilet paper, cartons, kitchen tissues, printing paper, office supplies, paper bags or toilet paper. At present, there are two forest factories in Taiwan Province Province, Rongcheng Paper and Liantai Paper, which recycle tetra pak into recycled paper.
As for other materials, such as aluminum foil and polyethylene, they will be burned in the biomass boiler system to avoid air pollution, which is also the source of steam used in papermaking places. Tetra Pak also supports the development of new recycling technology to recycle used packaging boxes into different materials. For example, Tetra Pak cooperated with Brazilian companies Klabin, Alcoa and TSLAmbiental*** to recycle plastic and aluminum foil materials from second-hand cartons through thermoelectric pulp technology. Producing pure aluminum from bauxite requires a lot of energy. Therefore, it is very worthwhile to study various possible aluminum recovery methods. Through thermoelectric slurry technology, plastics will become solid and can be used in chemical industry. Aluminum will return to its original pure texture, so it can be rolled back into aluminum foil after melting.
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