巴基斯坦塑料回收行业的清洁生产审计:一项基线研究
Safeerul Islam Hashmi1, Harshi Tharangika Sirisena Aluthduwe Hewage2, Chettiyappan Visvanathan2
1Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Science and Technology, 24090, Scholar Avenue, Sector H-12, Islamabad, Pakistan.
Chemosphere
|July 3, 2023
概括
巴基斯坦 巴基斯坦 巴基斯坦.
科学领域:
- 环境科学 环境科学
- 工业生态学 工业生态学
- 废物管理 废物管理
背景情况:
- 巴基斯坦的塑料废物管理效率低下.
- 塑料回收行业面临诸多挑战,包括缺乏政府支持,工人安全不佳,成本上升等.
- 需要在行业中进行更清洁的生产审计.
研究的目的:
- 建立巴基斯坦塑料回收行业清洁生产的初始参考基准.
- 从更清洁的生产角度来评估生产过程.
- 确定环境和运营改善的关键领域.
主要方法:
- 在巴基斯坦的10个塑料回收设施进行了更清洁的生产审计.
- 评估的水消耗,能源消耗,温度和噪音水平.
- 评估了工人条件和行业标准化.
主要成果:
- 平均用水量达到3315L/,大部分废水排放未经处理.
- 平均能源消耗量为172.5千瓦时/.
- 人们注意到高温 (36.5°C),过度的噪音,低薪工人和缺乏医疗保健.
结论:
- 巴基斯坦的塑料回收行业迫切需要对工艺,废水处理和能源使用的指导方针和标准化.
- 实施水的再利用和可再生能源至关重要.
- 解决工人福利和安全问题对于行业改进和环境保护至关重要.
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