Transfer and transport of aluminum in filtration unit | |
Wang Wen-dong ; Yang Hong-wei ; Zhao Hua-zhang ; Jiang Zhan-peng | |
刊名 | journal of environmental sciences china
![]() |
2007 | |
关键词 | aluminum species membrane filtration rapid filtration RESIDUAL ALUMINUM WATER-TREATMENT SPECIATION HYDROXIDE |
DOI | 10.1016/S1001-0742(07)60149-1 |
英文摘要 | Aluminum salt coagulants were used prevalently in various water works. In this article, the effects of filtration on residual aluminum concentration and species distribution were researched by determining the concentration of different aluminum species before and after single layer filter, double layer filter, and membrane filtration units. In the research, size exclusion chromatography (SEC) was used to separate colloidal and soluble aluminum, ion exchange chromatography (IEC) was used to separate organic and inorganic aluminum, and inductivity coupled plasma-atomic emission spectrometry (ICP-AES) was used to determine the aluminum concentration. The results showed that the rapid filtration process had the ability of removing residual aluminum from coagulant effluent water, and that double layer filtration was more effective in residual aluminum removal than single layer filtration, while nano filtration was more effective than micro filtration. It was found that when the residual aluminum concentration was below 1mg/L in sediment effluent, the residual aluminum concentration in treated water was above 0.2 mg/L. The direct rapid filtration process mainly removed the suspended aluminum. The removal of soluble and colloidal aluminum was always less than 10% and the natural small particles that adsorbed the amount of soluble or small particles aluminum on their surface were difficult to be removed in this process. Micro filtration and nano filtration were good technologies for removing aluminum; the residual aluminum concentration in the effluent was less than 0.05 mg/L.; Environmental Sciences; SCI(E); EI; 中国科技核心期刊(ISTIC); 0; ARTICLE; 8; 897-901; 19 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/251047] ![]() |
专题 | 环境科学与工程学院 |
推荐引用方式 GB/T 7714 | Wang Wen-dong,Yang Hong-wei,Zhao Hua-zhang,et al. Transfer and transport of aluminum in filtration unit[J]. journal of environmental sciences china,2007. |
APA | Wang Wen-dong,Yang Hong-wei,Zhao Hua-zhang,&Jiang Zhan-peng.(2007).Transfer and transport of aluminum in filtration unit.journal of environmental sciences china. |
MLA | Wang Wen-dong,et al."Transfer and transport of aluminum in filtration unit".journal of environmental sciences china (2007). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论