A Study on the Removal of Highly Concentrated Organic Matters in Saline Lake Water and the Mechanism of Magnesium Ion Loss in Water Treatment

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• 作者：Pengkang JinXin Jin1Lihui ZhouXiaochang Wang
• 会议时间：2011-06-01
• 关键词：Saline lake water ; Organic matter removal ; Magnesium ion loss ; Complexation
• 作者单位：Pengkang Jin,Xiaochang Wang(School of Environmental & Municipal Engineering, Xi'an University of Architecture & Technology,710055, Xi'an)Xin Jin1Lihui Zhou(Chang Qing Oil and Gas Technology Research Institute, 710021, Xi'an, China)
• 母体文献：2011全国非常规水源利用技术研讨会论文集
• 会议名称：2011全国非常规水源利用技术研讨会
• 会议地点：青岛
• 主办单位：水利部
• 语种：chi

摘要

Nafine Chemical Industry Group Co.Ltd.extracted inorganic salts from the saline lake of Shanxi Yuncheng,China.Because of the complexity of component and the high content of organic matters in the saline lake water,the purity of the inorganic salts was influenced directly.As a result,the organic matters in the saline lake water were needed to be removed.In order to solve this problem,different water treatment processes were utilized to remove the organic matters in saline lake water,but some valuable metal ions would lose,especially the magnesium ion in water treatment processes.The purpose of this paper is to study the treatability of high concentrated organic matters in saline water by O3/H2O2 oxidation,O3/H2O2 oxidation followed coagulation and activated carbon adsorption respectively,and the mechanisms of magnesium ion loss were analyzed.The results showed that O3/H2O2 oxidation can change the structure of organic matter and increase the content of carboxylic groups in organic matters which resulted in the complexation with magnesium ion.So that magnesium ion would be lost along with the removal of organic matters by coagulation or activated carbon adsorption following oxidation.However,it indicated that the magnesium ion loss could be decreased effectively through pH adjusting after oxidation.