工业污泥颗粒大小对无泥的性能的影响
Qingqing Tian1,2, Wenhao Zhao1, Lei Guo1,3,4
1School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou, China.
Journal of the Air & Waste Management Association (1995)
|September 20, 2023
概括
这项研究表明,将更细的颗粒大小的工业污泥纳入无块中,可以提高其强度,降低水吸收,并改善重金属固化. 这种回收方法有效地减少了环境污染,并支持工业生产.
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:
- 工业污泥由于含有重金属,造成环境风险.
- 水泥固化是固定污泥中的重金属的关键方法.
- 将回收污泥转化为建筑材料提供了一个可持续的解决方案.
研究的目的:
- 研究使用含重金属污泥的优化聚合物分级对无的性能的影响.
- 为了评估污泥修改的机械性能,吸水性,多孔性和重金属浸出.
- 分析开发的的微观结构和相位特征.
主要方法:
- 使用富勒曲线调整精细聚合物分级.
- 用特定颗粒大小 (0.150.3毫米和2.364.75毫米) 的加工污泥取代细聚合物.
- 通过强度,吸水和孔隙性测试来表征的性能.
- 利用核磁共振 (NMR) 和扫描电子显微镜 (SEM) 进行微观结构分析.
- 根据GB5085.3-2007标准进行重金属水试验.
主要成果:
- 泥替代部分降低了的强度,但仍保持在GB/T 21,144-2007标准之内.
- 用更细的污泥颗粒 (0.150.3毫米) 部分替换导致强度增加,吸水率降低,孔隙结构改善.
- 细污泥颗粒的结合导致重金属固化的增强,符合GB5085.3-2007的漏要求.
结论:
- 无制可以有效地吸收工业污泥,减少废物和对环境的影响.
- 优化污泥颗粒大小对于平衡机械性能和重金属固定至关重要.
- 这种方法为工业污泥回收提供了一个可行的途径,支持可持续的建筑实践.
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