Plastic waste - Plastic waste (English spelling)

Japanese: プラスチック廃棄物 - プラスチックはいきぶつ（英語表記）waste plastics

Plastic waste. It is characterized by almost no aging, decomposition, or corrosion. Currently, about 10% of plastic is contained in general waste, but it does not corrode at all when landfilled, so it remains as it is and there is no way to dispose of it. In particular, vinyl chloride polymers generate high heat in incinerators and generate hydrogen chloride, which damages the incinerator. In urban incinerators, hydrogen chloride exceeds 500 ppm at the exhaust outlet and causes air pollution. In addition, there are many types, they are difficult to separate, and each has different properties, so processing does not proceed smoothly. A method of reducing it to petroleum by dry distillation has been attempted, but it is far from being fully put into practical use. A method of extracting salt from vinyl chloride-based materials has been put into practical use, but it will take some time before it can be fully put into practical use due to issues such as product treatment.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

プラスチック製品の廃棄物。老化，分解，腐食がほとんどないのが特色。現在，一般廃棄物に 10%前後含まれているが，埋立てではまったく腐食しないためそのまま残り，処分の方法がない。特に塩化ビニル系の高分子は，焼却炉内で高熱を発生させ，また塩化水素を発生させて焼却炉を損傷させる。都市の焼却場では排出口で塩化水素が 500ppmをこえて大気汚染の原因ともなる。また，種類が多いうえ，選別がむずかしく，それぞれ性質を異にするため処理が円滑に進まない。乾留して石油に還元する方法も試みられているが，全面的実用化には程遠く，塩化ビニル系のものから塩を取出す方法が実用化しているが，製品の処置などをめぐって，本格化するまでにはまだ時間を要する。

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