创新的热水技术可以有效地分离废弃太阳能电池板
Rasoul Khayyam Nekouei1, Samane Maroufi1, Veena Sahajwalla1
1Centre for Sustainable Materials Research and Technology, SMaRT@UNSW, School of Materials Science and Engineering, UNSW Sydney, NSW 2052, Australia.
Waste management (New York, N.Y.)
|February 8, 2024
概括
这项研究引入了一种新的热水方法,仅使用水来有效地将玻璃与废弃太阳能电池板分离. 这种环保的工艺保护了材料质量,并证明了太阳能电池板回收利用的工业可行性.
科学领域:
- 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.
- 环境科学 环境科学
背景情况:
- 废旧太阳能电池板的分层,由于持久粘合剂,造成了重大回收挑战.
- 目前的方法往往缺乏效率或涉及强化学品,阻碍有效的材料回收.
- 开发对太阳能电池板废弃物的可持续解决方案对于环境保护和资源管理至关重要.
研究的目的:
- 为了引入一种新的,以水为基础的热方法,用于高效的太阳能电池板分层.
- 为了证明玻璃和其他模块组件的轻松分离.
- 评估回收材料的质量保存,以便在随后的应用中使用.
主要方法:
- 在相对较低的温度 (230-250°C) 中使用了带有高压水 (<3MPa) 的热水反应堆.
- 专注于将玻璃从太阳能电池板模块中分离出来.
- 提出了一个试点规模的设计,用于处理完整的太阳能电池板.
主要成果:
- 通过仅使用水,实现了玻璃与中间层的轻松分离.
- 回收的玻璃没有金属和聚合物污染物,适合直接重复使用.
- 随后的工艺允许轻松剥离其他模块层.
结论:
- 水热法为太阳能电池板回收提供了一种高效,无化学品的方法.
- 它保留了回收材料的质量,包括玻璃,中间层和板.
- 该工艺的特点是低温运行,不产生危险气体,能耗降低,证明了工业可行性.
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