摘要
通过对高浊度矿井水悬浮物的粒度分布、表面特性及其混凝沉降特性的研究,揭示了其水质特性,分析了影响高浊度矿井水悬浮颗粒与混凝剂亲和能力的主要原因.研究发现:矿井水所含悬浮物主要是粒径较小的煤粉和岩粉,而且表现出不同程度的负电性,自然沉降比较困难.随着煤化程度的加深,煤粉的润湿性逐渐降低,与混凝剂的亲和能力逐渐减弱.
The quality characteristics of mine drainage with high turbidity were described on the basis of investigating the particle size distribution, the characteristics of suspended particle surface, and the coagulating characteristics in mine drainage, and the influencing factors on the affinity between coagulants and suspended particles in mine drainage treatment were analyzed. The results show that the suspended particles in mine drainage mainly consist of coal and rock grains with small size and negative electric charge which make them hard to naturally subside. As the coal rank goes to higher, the wettability of coal grains and the affinity between coal and coagulants decreases gradually.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2008年第8期844-847,共4页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助项目(No50678172)
教育部资助项目(No107022)
关键词
矿井水
煤粉
岩粉
粒度分布
润湿性
混凝
mine drainage
coal grain
rock grain
particle size distribution
wettability
coagulation
