[1]王 磊,高 哲,米 娜,等.无机颗粒与腐殖酸复合共存时的超滤膜污染行为研究[J].西安建筑科技大学学报(自然科学版),2016,48(04):574-578.[doi:10.15986/j.1006-7930.2016.04. 019]
　WANG Lei,GAO Zhe,MI Na,et al.Fouling behaviour of ultrafiltration membrane by the mixtures of organic and inorganic matter[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(04):574-578.[doi:10.15986/j.1006-7930.2016.04. 019]
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无机颗粒与腐殖酸复合共存时的超滤膜污染行为研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年04期
页码:
574-578
栏目:
出版日期:
2016-08-31

文章信息/Info

Title:
Fouling behaviour of ultrafiltration membrane by the mixtures of organic and inorganic matter
文章编号:
1006-7930(2016)04-0574-05
作者:
王 磊; 高 哲; 米 娜; 李松山
(西安建筑科技大学环境与市政工程学院,陕西 西安 710055)
Author(s):
WANG Lei;  GAO Zhe;  MI Na;  LI Songshan
(School of Environmental & Municipal Engineering, Xian University of Architecture and Technology, Xian 710055, China)
关键词:
无机颗粒; 腐植酸; 复合共存; 微观作用力; 污染机制
Keywords:
inorganic particles;  humic acid (HA) ;  combined fouling;  microforces;  fouling mechanism
分类号:
TQ028.8
DOI:
10.15986/j.1006-7930.2016.04. 019
文献标志码:
A
摘要:
选用不同尺寸的二氧化硅及高岭土代表无机膜污染物，腐殖酸（HA）代表有机物膜污染物，分别进行单种污染物及无机-有机污染物共混时的膜污染试验，结合膜-污染物及污染物-污染物间的微观作用力测定，评价无机颗粒与有机物复合共存时对膜污染的机制．结果表明，HA对膜污染幅度明显大于任一种无机颗粒所引起的膜污染幅度，主要是因为无机颗粒之间有较强的相互作用力致使形成较大尺寸的团聚体，不易进入膜孔．与HA污染膜相比，大尺寸的无机颗粒与HA共存时，膜污染减缓，而纳米级二氧化硅与HA共存时，膜污染加剧．此外，不同运行阶段有机-无机共存体系的污染行为并不相同．
Abstract:
To further determine the fouling mechanism of the mixtures of inorganic and organic matters. and different sizes of silica and kaolinite were used as the inorganic foulant, humic acid (HA) was used as the organic foulant. Fouling experiments with HA, silica, kaolinite and organic-inorganic mixtures were carried out with PVDF ultrafiltration membranes. The interaction forces b etween PVDF membrane and each type of foulant and between foulant and foulant were investigated. Results show that the flux decline rate and extent of HA-fouled membrane was more seriousl than that for any kind of inorganic-fouled membrane. This was mainly due to the stronger interaction forces among inorganic particles, which resulted in the fact that the inorganic particles aggregate into large clusters, and reduced the risk of inorganic particles passing into membrane pores . Compared with single HA foulant, in the experiments results with HA-nano silica mixtures, significant synergistic effects from HA and nano-silica particle enhances membrane fouling. On the contrary, a s for the mixtures of HA-micro silica or kaolinite particles, much lower fouling resistance was observed as compared with that of the HA-fouled membrane. Moreover, the fouling behavior of the inorganic -organic mixtures was different during different filtration stages.

参考文献/References:

References

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备注/Memo

备注/Memo:
收稿日期：2015-04-27 修改稿日期：2016-08-15
基金项目：国家自然科学基金(51278408; 51608429)；中国博士后科学基金(2015M580820; 2016T90895)；陕西省自然科学基础研究基金(2016JQ5067)
作者简介：王磊（1971?），男，教授， 博士，主要从事膜法水处理研究, E-mail：wl0178@126.com
更新日期/Last Update: 2016-10-30