This powerpoint presentation begins by presenting a brief overview of the inland reverse osmosis (RO) desalination concentrate disposal issue. The focus of zero liquid discharge (ZLD) research is to develop an economical treatment technique for desalination that minimizes or eliminates any liquid waste discharge from a desalination process. Two Water Research Foundation (WRF) Projects are listed, #3010 - Zero Liquid Discharge for Inland Desalination (published 2007); and, #4163 - Zero Liquid Discharge Desalination of Waters with High Organic Content (in progress). A schematic of the basic premise is presented, along with removal of sparingly soluble salts, chemical softening, Fluidized Bed Crystallizer (Crystalactor), and activated alumina. Two concentrate treatment technologies are presented: ion exchange, MIEX; and, electrodialysis with ion selective membranes (EDM). A study of Tamiami Groundwater (TGW) treated at the Collier County North Regional WTP is outlined, and results are provided for both MIEX and EDM treatments. Includes tables, figures.