塑料回收:万能药或环境污染问题
Nisha Singh1,2, Tony R Walker2
1Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushimacho, Yokosuka, Kanagawa 237-0061 Japan.
概括
塑料回收率仍然很低,为9%,未能制产量上升. 需要先进的方法,政策和设计变化来改善塑料废物管理和减少环境污染.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 全球塑料产量每年超过4亿公.
- 目前塑料回收率仅为9%,不足以处理废物.
- 从历史上看,回收利用的努力倾向于热塑性塑料而不是耐热塑料.
研究的目的:
- 确定当前塑料废物回收过程中的关键缺口.
- 评估与塑料回收相关的环境影响.
- 探索先进的方法和策略,以提高塑料回收效率.
主要方法:
- 审查现有的塑料回收技术及其局限性.
- 对可回收性和受控化学应用的设计分析.
- 对经济激励和回收塑料市场扩张的研究.
主要成果:
- 在释放塑料回收的全部潜力方面存在重大差距.
- 在回收技术,设计和经济战略方面取得了进展.
- 新兴的战略和国际政策,如全球塑料条约,显示出有希望的结果.
结论:
- 目前的回收率不足以应对塑料废物的规模.
- 先进的回收技术,改进的设计和支持性政策至关重要.
- 国际合作和政策工具是必要的,以减少塑料垃圾和提高可回收性.
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