天津科技大学学报2018，Vol.33Issue(2)：49-53,71,6.DOI:10.13364/j.issn.1672-6510.20160337
改性蛭石无机矿物絮凝剂的性能研究
The Performance of Modified Vermiculite Flocculant
摘要
Abstract
Inorganic mineral vermiculite was used as raw material for preparing flocculant via acid modification and its flocculation properity was investigated in treating simulated wastewater,campus lake water and food biochemical wastewater.Poly aluminium chloride (PAC) was used for comparison.The experimental results show that the modified vermiculite's flocculation performance is similar to PAC's.Modified vermiculite could reach more than 98％ turbidity removal and is better than PAC in terms of flocs' sedimentation properties.Due to the synergistic effect of charge neutralization and van der Waals force of the modified vermiculite's soluble salts and insoluble particles with suspensions in wastewater,the modified vermiculite shows a better sedimentation performance and compressive properties,i.e.,the volume of equilibriumed flocs is only one-third of PAC's.The compound of the modified vermiculite and PAC could effectively reduce the volume of the flocs and improve the flocs' sedimentation performance.关键词
矿物材料/絮凝剂/蛭石/PACKey words
mineral material/flocculant/vermiculite/PAC分类
资源环境引用本文复制引用
王昶,刘芳,胡文红,李丽,赵瑞华..改性蛭石无机矿物絮凝剂的性能研究[J].天津科技大学学报,2018,33(2):49-53,71,6.基金项目
天津市科委重大专项([2014]14ZCDGNC00097) （[2014]14ZCDGNC00097）
天津市农委重大专项合作项目([2014]201404140) （[2014]201404140）
