Mineralization Processes of Desalinated Water by Limestone Dissolution
ZUO Shi-wei~(1,2),XIE Li-xin~(1,2),LI Ping-li~(1,2),WANG Shichang~(1,2)(1.Chemical Engineering Research Center,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2.Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University,Tianjin 300072,China)
(1,2),XIE Li-xin~(1,2),LI Ping-li~(1,2),WANG Shichang~(1,2)(1.Chemical Engineering Research Center,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2.Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University,Tianjin 300072,China
Abstract��
As a post-treatment process,desalinated water was rematerialized by sulfuric acid dissolution limestone.Influence of factors such as pH,limestone size and loading height,flowrate of desalinated water and reaction temperature on mineralization were studied.It is found that the change of pH affect the mineralization most obviously.In a certain range of packing height,the effect of mineralization decreased distinctly with increasing pH value,increased with the rising of packing height,decreased as the flowrate of desalinated water increased,and improved with increasing temperature.When pH=2.00,the calcium concentration is more than 300 mg/L after mineralization.
ZUO Shi-wei~.Mineralization Processes of Desalinated Water by Limestone Dissolution[J]. Chemcial Industry and Engineering, 2010,27(2): 163-166
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2010, Vol. 27 
