在建筑和建筑材料中回收饮用水处理污泥:一项审查
Zhi-Hai He1, Bin Wang2, Jin-Yan Shi3
1College of Civil Engineering, Shaoxing University, Shaoxing 312000, China; Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing 312000, China.
The Science of the total environment
|March 9, 2024
概括
将饮用水处理污泥 (DWTS) 循环回收成基于水泥的材料提供了大量的利用,并降低了环境风险. 化DWTS显示出作为补充水泥材料以及生产聚合物和的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 土木工程 土木工程是指土木工程.
背景情况:
- 饮用水处理污泥 (DWTS) 是一个具有挑战性的废物产品,回收选择有限,可能对环境造成危害.
- 在加工过程中,DWTS含有-相,并表现出pozzolanic活性,类似于传统的补充水泥材料.
- DWTS的性能受到其生产工艺和凝固剂类型的影响,这影响了其适用于各种应用的适用性.
研究的目的:
- 审查DWTS在基于水泥的材料中的高价值利用.
- 探索减少与DWTS相关的环境风险的方法.
- 评估DWTS作为补充水泥材料和水泥生产的原材料的潜力.
主要方法:
- 审查关于DWTS回收在基于水泥的材料的现有文献.
- 对DWTS属性的分析,包括pozzolanic活性和化学成分.
- 评估DWTS整合对基于水泥的材料性能和耐久性的影响.
- 研究减轻含有DWTS的材料中的重金属漏的方法.
主要成果:
- 小额添加DWTS可以通过产生水化产品和提炼孔隙结构来增强水泥性能.
- 大量的DWTS可用于生产人工聚合物,轻质混凝土和烧结.
- 化DWTS由于其成分,是用于生产水泥的潜在原料.
- 基于水泥的材料有效地固定了DWTS中的重金属,先进的技术进一步降低了漏风险.
结论:
- 可以有效地将DWTS回收到基于水泥的材料中,用于大量使用,减轻环境问题.
- 优化处理和应用策略是利用DWTS的pozzolanic特性和最大限度地降低风险的关键.
- 对先进稳定技术的进一步研究可以提高DWTS在建筑材料中的安全性和适用性.
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