摘要
控磷是治理富营养化水体的一个关键步骤.类水滑石材料(HTLs,Hydrotalcite-like materials)由于其特殊的理化结构和性质,可有效地吸附水体中的磷酸盐,且可通过结合沉积物中磷酸盐的方式,抑制沉积物中的磷向水体释放,是一种具有巨大应用潜力的控磷材料.近年来,围绕HTLs控磷的主题所发表的研究论文日益增多.为了更好地理解HTLs,并将其应用到水体富营养化的防治中,本文介绍了HTLs的组成、特性、制备方法;梳理了提高HTLs对磷酸盐阴离子吸附性能的改性方法,对比了不同HTLs对水体中磷酸盐阴离子的吸附性能和对内源磷的控制效果;总结了HTLs对水体中和沉积物中磷酸盐阴离子的吸附机理、影响HTLs吸附效果的因素;最后分析了HTLs在应用过程中可能存在的问题.论文对今后HTLs在水体控磷领域中的研究与应用方向进行了展望.
Phosphorus control is a key step in the management of eutrophic water.Hydrotalcite-like materials(HTLs)can effectively adsorb phosphate from water due to their special physicochemical structure and properties,and can inhibit the release of phosphorus from sediments into water by binding phosphate in sediments,which is a phosphorus control material with great potential for application.In recent years,an increasing number of research papers have been published on the topic of phosphorus control by HTLs.In order to better understand HTLs and apply them to the prevention and treatment of eutrophic water,this paper firstly introduces the composition,characteristics,and preparation methods of HTLs;secondly,it sorts out the altered performance methods to improve the adsorption performance of HTLs on phosphate anions,compares the adsorption performance of different HTLs on phosphate anions in water,and compares the control effect of different HTLs on endogenous phosphorus;then,it summarizes the adsorption mechanism of HTLs on phosphate anions in water,sediments,and the factors affecting the adsorption effect of HTLs due to the experimental results;and then it analyzes the possible problems of HTLs in the application process.Finally,this paper provides an outlook on the future research and application directions of HTLs in aqueous phosphorus control field.
作者
戴蓉蓉
高兴宇
代晨阳
文帅龙
贺琪均
徐兴涛
DAI Rongrong;GAO Xingyu;DAI Chenyang;WEN Shuailong;HE Qijun;XU Xingtao(School of Ocean Science and Technology,Zhejiang Ocean University,Zhoushan,316022,China;State Key Laboratory of Lake Science and Environment,Nanjing lnstitute of Geography and Limnology,Chinese Academy of Sciences,Nanjing,210008,China)
出处
《环境化学》
CAS
CSCD
北大核心
2023年第11期3916-3927,共12页
Environmental Chemistry
基金
浙江海洋大学人才引进研究基金(JX6311103723,JX6311101523)资助.
关键词
类水滑石
磷酸盐
吸附剂
内源控制
富营养化
hydrotalcite-like materials
phosphate
adsorbent
endogenous control
eutrophication
