摘要
磷素是水体富营养化的主要限制性因子,合适的除磷方法对控制水体富营养化具有重要意义。吸附法是一种经济、高效、操作简单的除磷方法,但如何选择合适的吸附材料是其应用的关键。La应用于常规吸附材料改性可提高其吸附磷酸盐的性能,同时可提高La利用效率。为进一步促进La改性吸附材料脱除水体磷酸盐的发展,本文归纳了国内外关于La改性吸附材料应用于水体磷酸盐脱除的相关研究,介绍了La改性吸附材料脱除磷酸盐的能力,分析了La改性吸附材料脱除磷酸盐的机理、主要影响因素以及解吸磷酸盐的特性。同时在此基础上提出未来应制备出对实际水体磷酸盐脱除高效和选择性强的La改性吸附材料,深入研究吸附材料制备机理以及脱除磷酸盐机理,探明吸附材料解吸磷酸盐的简单方法,并作出吸附材料解吸循环使用的经济效益评价。
Phosphorus is the main limiting factor of eutrophication in water body.The suitable method of phosphorus removal is of great significance in controlling eutrophication of water body.Adsorption is an economical,efficient and simple method for phosphorus removal.However,how to select suitable adsorption materials is the key to its application.The application of lanthanum to the modification of conventional adsorption materials can improve the performance of phosphate adsorption and the utilization efficiency of lanthanum.In order to further promote the development of phosphate removal by lanthanum modified adsorption materials,the related research on the application of lanthanum modified adsorption materials to phosphate removal in water is summarized,and the properties of lanthanum modified adsorption materials for phosphate removal are introduced.The mechanism of phosphate removal by lanthanum modified adsorption materials,the main influencing factors and the characteristics of desorption phosphate are analyzed.Meanwhile,it is suggested that in the future research,the lanthanum modified adsorption material with high efficiency and high selectivity for the removal of phosphate in real water should be prepared,and its mechanism of preparation and removal phosphate should be studied,and the suitable method of desorption phosphate of the adsorption material should be found out.The economic benefits of desorption and recycling of adsorption materials are evaluated.
作者
罗元
谢坤
张克强
沈仕洲
王风
LUO Yuan;XIE Kun;ZHANG Keqiang;SHEN Shizhou;WANG Feng(Agro-Environmental Protection Institute,Ministry of Agriculture and Rural Affairs,Tianjin 300191,China;College of Resources and Environment,Yunnan Agricultural University,Kunming 650201,Yunnan,China;Dali Agro-Environmental Science Station,Ministry of Agriculture and Rural Affairs,Dali 671004,Yunnan,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2019年第11期5005-5014,共10页
Chemical Industry and Engineering Progress
基金
国家重点研发计划(2017YFD0800403)
天津市自然基金(16JCYBJC29700)
农业农村部财政项目(22110402001006)
关键词
La改性
吸附材料
脱除
磷酸盐
机理
lanthanum modification
adsorption materials
removal
phosphate
mechanism
