Effect of Solution Chemistry on the Performance Eveluation of Nanofiltration Membrane
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EFFECT OF SOLUTION CHEMISTRY ON THE PERFORMANCE EVELUATION OF NANOFILTRATION MEMBRANE O. Agboola Department of Chemical Engineering, Faculty of Engineering and the Built Environment, Tshwane University of Technology, Pretoria, South Africa. Abstract Introduction Large volume of wastewater is produced from industries such as mining, metallurgical, pharmaceutical, electroplating, e.t.c. The use of membrane filtration has been established widely for the treatment of wastewater. Nanofiltration has become the most important advance in membranes technology due to the advantages such as low operating pressure, high flux and high rejection of multivalent ions and organic molecules above 300 Da and low operation and maintenance cost [1]. The demand for membrane performance has continued to increase as far as water quality requirements become more and more stringent [2]. These requirements has resulted in selective removal of certain dissolved species, such as hardness, iron, natural organic matter, pesticides, trihalomethane formation potential compounds and organic material which causes colour, while leaving some level of salts in the water so that it does not become aggressive. These circumstances made NF membrane the unique method capable of meeting the above mentioned water quality demand [2]. References 1. Lu. X., Bain. X., Shi. L. Preparation and characterisation of NF membrane. Journal of Membrane Science, 5023, 1-9, 2002. 2. Chung. C. C., Buu. N. Q., and Chau, N. H. Influence of surface charge and solution pH on the performance characteristics of a nanofiltration membrane. Science and Technology of Advanced Materials. 6, 246-250, 2005.
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Large volume of wastewater is produced from industries such as mining, metallurgical, pharmaceutical, electroplating, e.t.c. The use of membrane filtration has been established widely for the treatment of wastewater. Nanofiltration has become the most important advance in membranes technology due to the advantages such as low operating pressure, high flux and high rejection of multivalent ions and organic molecules above 300 Da and low operation and maintenance cost [1]. The demand for membrane performance has continued to increase as far as water quality requirements become more and more stringent [2]. These requirements has resulted in selective removal of certain dissolved species, such as hardness, iron, natural organic matter, pesticides, trihalomethane formation potential compounds and organic material which causes colour, while leaving some level of salts in the water so that it does not become aggressive. These circumstances made NF membrane the unique method capable of meeting the above mentioned water quality demand [2].
Transcript of Effect of Solution Chemistry on the Performance Eveluation of Nanofiltration Membrane
EFFECT OF SOLUTION CHEMISTRY ON THE PERFORMANCE EVELUATION OF NANOFILTRATION MEMBRANEO. AgboolaDepartment of Chemical Engineering, Faculty of Engineering and the Built Environment, Tshwane University of Technology, Pretoria, South Africa.AbstractIntroductionLarge volume of wastewater is produced from industries such as mining, metallurgical, pharmaceutical, electroplating, e.t.c. The use of membrane filtration has been established widely for the treatment of wastewater. Nanofiltration has become the most important advance in membranes technology due to the advantages such as low operating pressure, high flux and high rejection of multivalent ions and organic molecules above 300 Da and low operation and maintenance cost [1]. The demand for membrane performance has continued to increase as far as water quality requirements become more and more stringent [2]. These requirements has resulted in selective removal of certain dissolved species, such as hardness, iron, natural organic matter, pesticides, trihalomethane formation potential compounds and organic material which causes colour, while leaving some level of salts in the water so that it does not become aggressive. These circumstances made NF membrane the unique method capable of meeting the above mentioned water quality demand [2].References1. Lu. X., Bain. X., Shi. L. Preparation and characterisation of NF membrane. Journal of Membrane Science, 5023, 1-9, 2002.2. Chung. C. C., Buu. N. Q., and Chau, N. H. Influence of surface charge and solution pH on the performance characteristics of a nanofiltration membrane. Science and Technology of Advanced Materials. 6, 246-250, 2005.
