Modification of commercial water treatment membranes by ion beam irradiation

被引:29
作者
Good, K [1 ]
Escobar, I [1 ]
Xu, XL [1 ]
Coleman, M [1 ]
Ponting, M [1 ]
机构
[1] Univ Toledo, Dept Environm Chem & Engn, Toledo, OH 43606 USA
关键词
membrane; irradiation; wastewater; transport properties; fouling;
D O I
10.1016/S0011-9164(02)00484-8
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The effect of ion beam irradiation on the performance of two commercial water treatment membranes was studied. The results of this testing indicate that the irradiation induced structure modifications had a positive impact on the membranes application to wastewater treatment. Irradiation of the first membrane (TFC-S, Koch Membrane Systems, San Diego, CA) led to a slight decrease in selectivity, but this was outweighed by the positive effects of the irradiation. Not only did the irradiation improve both abiotic and biofouling resistance, it also doubled the membrane solvent mass transfer coefficient (MTC). Ion beam irradiation also improved the performance of the second membrane (NTR 7450, Hydranautics, San Diego, CA). Water quality testing revealed similar removal of contaminants, while fouling tests indicated an improvement in the membrane's resistance to fouling, especially in the case of biofouling.
引用
收藏
页码:259 / 264
页数:6
相关论文
共 6 条
[1]   Role of membrane surface morphology in colloidal fouling of cellulose acetate and composite aromatic polyamide reverse osmosis membranes [J].
Elimelech, M ;
Zhu, XH ;
Childress, AE ;
Hong, SK .
JOURNAL OF MEMBRANE SCIENCE, 1997, 127 (01) :101-109
[2]   Chemical and physical aspects of natural organic matter (NOM) fouling of nanofiltration membranes [J].
Hong, SK ;
Elimelech, M .
JOURNAL OF MEMBRANE SCIENCE, 1997, 132 (02) :159-181
[3]   Influence of membrane surface properties on initial rate of colloidal fouling of reverse osmosis and nanofiltration membranes [J].
Vrijenhoek, EM ;
Hong, S ;
Elimelech, M .
JOURNAL OF MEMBRANE SCIENCE, 2001, 188 (01) :115-128
[4]  
Xu XL, 1999, MATER RES SOC SYMP P, V540, P255
[5]   Preliminary investigation of gas transport mechanism in a H+ irradiated polyimide-ceramic composite membrane [J].
Xu, XL ;
Coleman, MR .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1999, 152 (2-3) :325-334
[6]  
Xu XL, 1997, J APPL POLYM SCI, V66, P459