基于离子色谱法的中水淡化海砂工艺研究  

Study on process of desalination of sea sand using reclaimed water based on ion chromatography

作　　者：高攀峰 刘帅豪 张健奕 戴源 王利勇 龙绛雪 傅海燕 张祺霖 GAO Panfeng;LIU Shuaihao;ZHANG Jianyi;DAI Yuan;WANG Liyong;LONG Jiangxue;FU Haiyan;ZHANG Qilin(School of Environmental Science and Engineering,Xiamen University of Technology,Xiamen 361024,China)

机构地区：[1]厦门理工学院环境科学与工程学院,福建厦门361024

出　　处：《混凝土与水泥制品》2024年第9期96-99,105,共5页China Concrete and Cement Products

基　　金：福建省产学研联合创新项目(2021Y4005);福建省自然科学基金项目(2022J011230、2023J011423);福厦泉国家自主创新示范区城乡生态环境治理提升关键技术协同创新平台项目(2022-P-024);厦门市科技计划项目(2022FCX012502010157);厦门科技项目(3502Z20226024)。

摘　　要：建立了一种采用离子色谱法分析海砂中阴离子的检测方法,验证了该方法的准确度,在此基础上,采用L9(33)正交试验研究了砂水比、洗涤时间、洗涤次数对海砂中Cl-去除率的影响,并进行了成本效益分析。结果表明:采用离子色谱法可快速分离和检测出海砂中的F^(-)、Cl^(-)、Br^(-)、NO^(3-)、SO_(4)^(2-)、I^(-),且准确度较高,相关系数R^(2)均大于0.9970;当砂水比为1∶20、洗涤时间为10 min、洗涤次数为3次时,对海砂的淡化效果最好,Cl^(-)去除率可达99.8%;采用中水淡化海砂具有显著的环境效益。A detection method for anions in sea sand by using ion chromatography was established,and the accuracy of the method was verified.Based on this,the L9(33)orthogonal test was used to study the effects of sand-water ratio,washing time,and washing frequency on the Cl^(-)removal rate in sea sand,and a cost-benefit analysis was conducted.The results show that using ion chromatography can quickly separate and detect F^(-),Cl^(-),Br^(-),NO^(3-),SO_(4)^(2-),I^(-),and the accuracy is high,with correlation coefficients R^(2)all greater than 0.9970.When the sand-water ratio is 1∶20,the washing time is 10 minutes,and the washing frequency is 3 times,the desalination effect on sea sand is the best,and the Cl^(-)removal rate can reach 99.8%.The reuse of reclaimed water for desalination of sea sand has significant environmental benefits.

关 键 词：建设用砂 海砂淡化 Cl^(-)去除率 中水回用 离子色谱法 

分 类 号：TU528.0[建筑科学—建筑技术科学]