由热力学指导的设计,用于从废玻璃和焚烧污水泥灰中生产轻质聚合物
Yujie Huang1, Ying Wei2, Ziwei Chen1
1Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, 999077, Hong Kong; Research Centre for Resources Engineering Towards Carbon Neutrality, The Hong Kong Polytechnic University, Hung Hom, Kowloon, 999077, Hong Kong.
Journal of environmental management
|April 25, 2025
概括
本研究引入了一个热力学框架,以优化从废玻璃 (WG) 和焚烧污水污泥灰 (ISSA) 来生产轻质聚合物 (LWA). 该方法提高了废物利用过程的稳定性和环境性能.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 化学工程是化学工程的重要组成部分.
背景情况:
- 将废玻璃 (WG) 和焚烧污水泥灰 (ISSA) 回收成轻质聚合物 (LWA) 为城市废物管理提供了一个有前途的途径.
- 在LWA生产中的挑战包括由于WG和ISSA的复杂性而导致的过程不稳定性和性能变化.
研究的目的:
- 开发一个基于热力学的框架来设计和优化基于WG-ISSA的LWA的烧结过程.
- 通过分析关键的烧结参数及其影响,通过精确控制LWA属性.
主要方法:
- 利用热力学模型分析发泡潜力,相位过渡,液体-固体特性,烧结能力和重金属固化.
- 采用结构热力学信息化的人工神经网络 (STIANN) 来计算液态固态相特性,如流动性和界面特性.
- 研究了发泡剂剂量,ISSA含量和温度对烧结的影响.
主要成果:
- 该框架允许通过考虑液相含量,晶体沉,粘度,表面张力和氧化物活性等目标性能来设计和优化ISSA-WG LWA.
- 证明重金属 (As,Cr,Cu,Ni) 在广泛的烧结温度范围内 (800-1600°C) 在LWA中有效地固定在稳定的形式中.
- 为开发的LWA实现了出色的环保性质.
结论:
- 开发的基于热力学的框架提供了一个强大的方法,用于从废玻璃和焚烧污水泥灰中控制生产LWA.
- 这种方法促进了这些废物的大规模利用,通过有效的重金属固定,为环境带来了显著的好处.
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