BRACKISH WATER IS AN IMPORTANT SOURCE OF WATER RESOURCES WITH LOWER SALT CONTENT THAN SEAWATER. DESALINATION IS A VERY IMPORTANT TREATMENT TO REMEDY THE SCARCITY OF FRESH WATER THROUGHOUT THE WORLD. IN THIS WORK, IT HAS BEEN PROPOSED TO DESALINATE BRACKISH GROUNDWATER USING A COMMERCIAL NANOFILTRATION MEMBRANE. THE EXPERIMENTS WERE CARRIED OUT ON THE BASIS OF A FACTORIAL DESIGN USING THREE FACTORS AND TWO LEVELS OF STUDY FOR EACH VARIABLE. FOR THIS PURPOSE, IT SELECTED THE FEED PRESSURE (X1) OF THE MEMBRANE MODULE AT (60 AND 100 PSI), FEED WATER SALINITY (X2) AT LEVELS OF (3.4 AND 6.01 MS/CM) AND OPERATING TEMPERATURE (X3) AT LEVELS (20 AND 28 °C) TO EVALUATE ITS EFFECT ON THE PERCENTAGE FLUX RECOVERY AND SALT RETENTION. THE RESULTS SHOWED THAT THE MOST SIGNIFICANT VARIABLE IS THE FEED PRESSURE, ACHIEVING HIGHER FLOW RECOVERY AND THE PERCENTAGE OF SALINITY REJECTION AT THE 100 PSI LEVEL...

SODIUM HYPOCHLORITE (NACLO) IS USED ON A LARGE SCALE FOR WATER DISINFECTION, FABRIC BLEACHING, AND ODOR REMOVAL. IT IS PREFERRED DUE TO THE ENVIRONMENTAL RISK OF LIQUID CHLORINE ASSOCIATED WITH STORAGE AND TRANSPORT. THE OBJECTIVE OF THE RESEARCH WAS THE ELECTROCHEMICAL GENERATION OF SODIUM HYPOCHLORITE FROM AN AQUEOUS SOLUTION OF SODIUM CHLORIDE. DIFFERENT OPERATING CONDITIONS AFFECTING THE SODIUM HYPOCHLORITE GENERATION PROCESS WERE STUDIED, INCLUDING ELECTRICAL POTENTIAL (6 AND 10 V), SODIUM CHLORIDE CONCENTRATION (80 AND 120 G/L), AND ELECTROLYSIS TIME (30 AND 60 MINUTES. TO ANALYZE THE EFFECT OF THE FACTORS WITH RESPECT TO THE RESPONSE VARIABLE SUCH AS SODIUM HYPOCHLORITE CONCENTRATION AND ENERGY CONSUMPTION PER KILOGRAM OF HYPOCHLORITE PRODUCED, A TWO-LEVEL FACTORIAL DESIGN WAS USED FOR EACH FACTOR. THE BEST OPERATING CONDITIONS PRODUCED WHEN THE APPLIED ELECTRIC POTENTIAL WAS 10 V...