From: dlzc1@cox.net   
      
   Let's say I am looking to reuse irrigation water, for irrigation.  I will   
   apply some prescription dose of ozone, for pathogen inactivation (at minimum).   
      
   The source water contains:   
   - Potassium > 90 ppm   
   - Ammonium as NH4-N > 61 ppm   
   - Phosphate > 90 ppm   
   - soluble Iron and Manganese (not permanganate) are present at elevated   
   levels, but not toxically high   
      
   Need at least a factor of 10 reduction in Potassium, "Ammonium", and Phosphate   
      
   Will electro-deionization remove some of this?   
      
   Water re-use is a big deal.   
      
   Would this "large fishing net" be of any interest to chemists?   
      
   Where would someone go with a water chemistry problem, for solutions?   
      
   David A. Smith   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)