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The impact of plastic recycling on climate change
Summary
This study examined the environmental impact of mechanically recycling black jumbo polypropylene bags via extrusion, finding that after passing fumes through a multi-stage air purification system, total organic carbon emissions fell below legally permitted limits, supporting mechanical recycling as a viable low-emission method for reducing plastic waste.
Mechanical plastic recycling is one of the methods of possible re-using plastic waste, which contributes to the reduction of greenhouse gas emissions, as well as to the reduction of climate change and global warming. Mechanical recycling can be performed on all types of thermoplastics, while in this paper will be analyzed the extrusion process of polypropylene waste. The paper will analyze the impact of mechanical recycling of black jumbo polypropylene bags on air pollution. There will be presented the results of total organic carbon emissions measurement during the process of extrusion of the mentioned material. The fumes from extrusion process are sent to an exhaust gas purification system consisting of a scrubber, air dryer, electrostatic filter and activated carbon filter. After the air purification system, the obtained measurement results are below the permitted limit values, which complies with the legal regulations in the field of environmental protection.