S tudies on organic foulants in the seawater feed of reverse o smosis plants of SWCC

1. Procedure for the separation of humic s ubstances from seawater in gram quantities h as been standardized using XAD-2 and X AD-7 resins. This procedure of preconc entration of humic acid in conjunction with 3. Total acidity in Jeddah sample is 5.0 meq/g w hereas in AI-Jubail and A1-Khobar contain 3 .36 and 3.23 meq/g, respectively. Furtherm ore, about 80% content of humic substance is fulvic acid and 20% is humic acid in s amples from all three sites. 4. Jeddah samples indicated more favorable c onditions for bacterial activity in comp arison to eastern province sites sample, viz. A I-Jubail and AI-Khobar. 5.