BORON REMOVAL FROM SEAWATER USING ADSORPTION AND ION EXCHANGE TECHNIQUESSadik Hameed, Hussein Ali Awad and Raheem Aziz H. Al-uqailyAbstract Boron is found in the environment at low concentrations as boric acid or borate salts. Boron is a micronutrient required for most plants and animals; however, the range between lower limit and higher limit is not wide. In an industrial sector, the removal of boron from water, such as in the treatment of magnesium brines or in the ultrapure water production for the semi-conductor industry is essential. In other industrial sectors, a boron selective resin can be applied to remove and or to eliminate boron from discharge water reject. Boron occurrence in most natural fresh waters is at less than 1.0 mg/L and in seawater at 5.0 mg/L levels. The high concentrations of boron are often reported as an indicator of pollution from sources such as laundry detergents, boiler blow down water, or mining zones, which may require treatment prior to discharge to the main streams. In the present investigation, different material was employed to remove boron ions from its solution such as fly ash, zeolite, and dematerialized lignite and also Boron Selective Resin (BSR) (Dowâs XUS43594.00). The isotherm, removal capacity, kinetics of process was studied for batch process. Results showed boron removal by employing fly ash is 92.6% and 89.6% boron removed using BSR. pH of the solution seems important variable in boron removal process and maximum removal occurred at pH 11. |