The Boron Rejection by RO Membranes in presence of Calcium Carbonate and Magnesium Hydroxide

世界各地的水资源短缺要求使用可获得的盐水沃茨来生产饮用水。反渗透膜已被用作实现该目的的手段。污垢是反渗透装置运行的主要障碍。本项目旨在研究高pH条件下反渗透除硼的效果，高pH条件下反渗透除硼的效果提高，但同时也加剧了碳酸钙和氢氧化镁的复合污染。将确定硼截留的最佳pH值，并评价该pH值范围内碳酸钙和氢氧化镁的倾向。

Water scarcity in various parts of the world demands the use of available saline waters for production of potable water. Reverse Osmosis membranes have been used as a means of achieving this objective. Fouling is a major impediment in operation of reverse osmosis units. The project aims to study boron removal by RO under high pH which increases the boron rejection but at the same time exacerbates composite fouling by calcium carbonate and magnesium hydroxide. Optimum pH for boron rejection will be determined and propensity of calcium carbonate and magnesium hydroxide at that pH range will be evaluated.