Application of Membrane-Based Separations in Environmental Remediation

摘要

The use of membranes in remediation is of great importance. Solid membranes have been used for treatment of brackish water, gas separations based on the size of the pores of the membranes. Electrically charged solid membranes have been used for removal of anions and also in chloralkali industries. The ion exchange studies of Nafion membrane showed that the physical structure and hence the ion exchange capacity is greatly affected by aging and also the pretreatment procedures adopted. Liquid membranes have been used extensively to study the carrier activity of various organic compounds for selective transport of metal ions.