Abstract
The selective removal of Cl - and SO 4 2- from seawater using Ag- and Pb-exchanged natural zeolites was examined for effective seawater desalination. Japanese clinoptilolite zeolites were treated with AgNO 3 and Pb（NO 3 ） 2 solutions to prepare Ag- and Pb-exchanged natural zeolites. Ag-exchanged natural zeolite can selectively remove Cl - from seawater without any Ag + remaining in the seawater after treatment, while Pb-exchanged natural zeolite can selectively remove SO 4 2- from seawater but Pb 2+ remains in the seawater after treatment.
