金属盐改性活性氧化镁对饮用水中氟离子的去除性能  

Removal performance of metal salt modified active magnesium oxide on fluoride ions in drinking water

作　　者：梁金浩 许兵[1,2] 张钰卿 李珂 杜建成 LIANG Jinhao;XU Bing;ZHANG Yuqing;LI Ke;DU Jiancheng(School of Municipal and Environmental Engineering,Shandong Jianzhu University,Jinan 250101,China;Resources and Environment Innovatio Institute,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]山东建筑大学市政与环境工程学院,济南250101 [2]山东建筑大学资源与环境研究院,济南250101

出　　处：《环境工程学报》2023年第7期2181-2191,共11页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51908334)。

摘　　要：饮用水中氟含量超标会损害人体的健康,本研究研制了一种改性吸附剂用于去除饮用水中过量的氟离子。本研究采用浸渍,焙烧的方法将金属盐负载到活性氧化镁上,制备改性活性氧化镁,考察了其除氟效果和吸附除氟的主要影响因素。结果表明,经过钙盐,铁盐改性后的活性氧化镁最大吸附容量显著增加,在复杂水体环境中仍有突出的除氟效果;改性吸附剂适宜pH为3~10;金属盐改性活性氧化镁处理水样不会有Mg^(2+)和浸渍盐离子溶出,是一种安全可靠的吸附除氟材料。Excessive fluoride content in drinking water can harm human health.In this study,a modified adsorbent was developed to remove excessive fluoride ions from drinking water.The impregnation and calcination methods were used to load metal salts onto activated magnesium oxide for the preparation of modified activated magnesium oxide.The fluoride removal effect and the main influencing factors were studied.The results showed that the maximum adsorption capacity of activated magnesium oxide modified with calcium and iron salts significantly increased,and it still had outstanding fluoride removal effects in complex water environments;The pH values of 3~10 were suitable for the modified adsorbent;Metal salt modified active magnesium oxide treatment of water samples did not release Mg^(2+)and immersion salt ions,it is a type of safe and reliable material for adsorption and fluoride removal.

关 键 词：金属盐改性 活性氧化镁 饮用水除氟 

分 类 号：X703[环境科学与工程—环境工程]