通过基于粉的花剂提高疏沉积物的脱水能力的综合评估
Shilei Tang1, Shaobin Huang1, Pengfei Chen1
1School of Environment and Energy, South China University of Technology Higher Education Mega Center Guangzhou 510006 P. R. China chshuang@scut.edu.cn.
RSC advances
|June 3, 2024
概括
一种基于粉的新型花剂,St-CTA,有效地去除了疏沉积物. 这种环保剂显著改善了过,减少了含水量,并澄清了超,帮助沉积物处理.
科学领域:
- 环境工程 环境工程
- 材料科学 材料科学 材料科学
- 水处理 处理水的方法
背景情况:
- 疏沉积物由于含水量和体积高,因此存在脱水挑战.
- 凝固是提高沉积物脱水性能的一个关键技术.
- 开发高效和环保的脱水剂对于沉积物管理至关重要.
研究的目的:
- 为了合成和评估一种基于粉的化粉剂,St-CTA,用于疏沉积物脱水.
- 研究St-CTA在改善沉积物脱水特性方面的有效性和潜在机制.
- 评估St-CTA作为沉积物调节剂的环保性和适用性.
主要方法:
- 通过乙化合成粉-3-chloro-2-hydroxypropyl三甲基化 (St-CTA).
- 应用St-CTA用于疏沉积物的花脱水.
- 测量脱水参数:特异性过阻力 (SRF),毛细血管吸收时间 (CST) 和过蛋糕含水量 (WC).
- 分析了超浮物度去除,粒子大小分布 (D50),微结构和碎形维度.
主要成果:
- St-CTA显著改善了脱水:SRF降低了93.3%,CST降低了93.5%,WC降低了9.7%在12 mg/g的TSS.
- 超的度去除达到99.6%,加快沉和有效的颗粒捕获.
- St-CTA增加了中间颗粒大小 (D50),增强了的紧性,并改善了排水道的形成.
结论:
- 合成的St-CTA是一种高效的花剂,可快速排水疏沉积物.
- St-CTA修改了花特性,促进了高效的水释放和颗粒分离.
- 对于沉积物处理,St-CTA提供了一个可行且潜在的环保解决方案.
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