摘要
为了扩大粉煤灰的应用范围,减少其对环境的污染,并且寻求一种新的水处理滤料的配方与制备方法,以粉煤灰、粘土为主要原料,以生石灰、石膏、水泥为激发剂,以H2O2(双氧水)、NaHCO3为发泡剂,经搅拌、成型、自然冷却等工艺在实验室制备了免烧粉煤灰滤料.结果表明,如果以孔隙率作为主要的性能评价指标,制备免烧粉煤灰滤料的最佳质量配比为:粉煤灰46.30%,粘土13.89%,生石灰18.52%,水泥13.89%,石膏1.85%,纯H2O25.55%,此时所制滤料的孔隙率为72.24%.
In order to expand the application scope of fly ash,reduce its pollution to the environment,and seek the formulation and preparation of a new water treatment filter,the unburned fly ash filter material was prepared after milling,molding,and self-cooling in laboratory,with fly ash and clay as main ingredient,lime,gypsum and cement as activating agent,H2 O2 and NaHCO3 as vesicant. The result shows that the optimal mass ratio of raw material for unburned fly ash filter material,with porosity as performance evaluation index,is 46？30% of fly ash,13？89% of clay,18？52%of lime,13？89%of cement,1？85%of gypsum,and 5？55%of pure H2O2.The porosity under this opti-mal mass ratio is 72？24%.
出处
《南京信息工程大学学报（自然科学版）》
CAS
2014年第4期363-368,共6页
Journal of Nanjing University of Information Science & Technology（Natural Science Edition）
基金
江苏省大学生实践创新计划(11CX034)
关键词
粉煤灰
免烧滤料
孔隙率
fly ash
unburned filter material
porosity
