从无氧消化的污泥制备生物炭,以增强污泥脱水
Zhuo Li1, Kai Chen1, Shixin Zhai1
1Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
Chemosphere
|June 27, 2024
概括
这项研究提高了污泥脱水使用生物炭改性聚烯胺 (PAM-ADBC) 和硫酸处理的蒙莫里隆石 (HMTS). 这种新的方法显著降低了水分含量,并提高了排水效率,以实现可持续的污泥管理.
科学领域:
- 环境科学 环境科学
- 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.
背景情况:
- 有效的污泥排水对于有效的处理和资源回收至关重要.
- 无氧消化的污泥由于其复杂的结构,在脱水方面存在挑战.
研究的目的:
- 调查用污泥衍生生物炭改性聚烯胺 (PAM-ADBC) 和硫酸改性蒙莫里隆石 (HMTS) 进行增强污泥脱水的使用.
- 为了评估在减少剂量下修改生物炭的性能.
主要方法:
- 来自泥的生物炭用PAM-ADBC进行了合成和修改.
- 用硫酸修饰的蒙莫里隆石 (HMTS) 已准备好.
- 应用PAM-ADBC和HMTS的联合处理应用于无氧后消化的污泥.
主要成果:
- 通过降低HMTS (0.1 g/g DS) 和PAM-ADBC (25 g/kg DS) 的剂量,可以实现显著改善脱水.
- 毛细管吸收时间增长了41.96% (17.2秒),水分含量减少了20.26% (66.33%).
- 通过分解细胞外聚合物质,HMTS促进了水的释放,而PAM-ADBC则帮助了花和水的排放.
结论:
- 开发的PAM-ADBC和HMTS处理方法为增强污泥脱水提供了一种有效的方法.
- 这种方法代表了无氧消化污泥的可持续资源回收策略.
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