A photocatalytic plastic biodegradation system

Abstract

The invention relates to the field of plastic processing, in particular to a biodegradation system for photocatalytic plastics. The biodegradation system for the photocatalytic plastics comprises a stirring mechanism, a grinding mechanism, a carrying mechanism, a wastewater collecting mechanism, an outer protection mechanism, a discharging channel, a lighting mechanism and a conveyor belt. The stirring mechanism is used for stirring the plastics in the carrying mechanism; the grinding mechanism is used for grinding a catalyst, and meanwhile, the catalyst is sprayed out so as to be stirred withthe plastics; the wastewater collecting mechanism is used for collecting water in the plastics; the lighting mechanism is used for lighting and decomposing the plastics; and the conveyor belt is usedfor outputting the photo-decomposed plastics. According to the biodegradation system for the photocatalytic plastics provided by the invention, a stirring piece with a special structure is used for stirring the collected plastics, and the catalyst can be sprayed out during the stirring process at the same time so as to be uniformly mixed with the plastics conveniently, so that the phot-decomposing efficiency is improved, the occurrence of the phenomenon that sewage transversely flows to influence the peripheral environment is avoided, and the biodegradation system for the photocatalytic plastics is environmental-friendly and economical; and when the plastics fall down, the blockage occurred during the falling of the plastics is avoided, and meanwhile, the photo-decomposing efficiency is improved.

Description

technical field [0001] The invention relates to the field of plastic treatment, in particular to a photocatalytic plastic biodegradation system. Background technique [0002] Waste plastics and white pollution refer to packaging bags made of polystyrene, polypropylene, polyvinyl chloride and other polymer compounds, agricultural mulch, disposable tableware, plastic bottles and other plastic products that are discarded as solid waste after use. Random littering is difficult to degrade, causing pollution to the ecological environment and landscape. [0003] Waste plastics are difficult to deal with, and will produce harmful substances to the air when incinerated. It is difficult to degrade and pollute the land when it is landfilled. Therefore, photocatalysis is one of the better ways to solve plastic pollution. The existing photocatalysis cannot be achieved when it is degraded. The plastic and the catalyst are evenly mixed, and the light is not comprehensive at the same time,...

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Problems solved by technology

[0002] Waste plastics and white pollution refer to packaging bags made of polystyrene, polypropylene, polyvinyl chloride and other polymer compounds, agricultural mulch, disposable tableware, plastic bottles and other plastic products that are discarded as solid waste after use. Random littering is difficult to degrade, causing pollution to the ecological environment and landscape

[0003] Waste plastics are difficult to deal with, and will produce harmful substances to the air when incinerated. It is difficult to degrade and pollute the land when it is landfilled. Therefore, photocatalysis is one of the better ways to solve plastic pollution. The existing photocatalysis cannot be achieved when it is degraded. The plastic and the catalyst are evenly mixed, and the light is not comprehensive at the same time, and the degradation efficiency is low

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