Layered double hydroxides:Scale production and application in soil remediation as super-stable mineralizer  

作　　者：Fangqi Mao Peipei Hao Yuquan Zhu Xianggui Kong Xue Duan 

机构地区：[1]State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing 100029,China

出　　处：《Chinese Journal of Chemical Engineering》2022年第1期42-48,共7页中国化学工程学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(21978023);the Fundamental Research Funds for the Central Universities(XK1803-05);the Inno-vative Achievement Commercialization Service-Platform of Indus-trial Catalysis(2019-00900-2-1);the National Basic Research Program of China(2014CB932104)。

摘　　要：Soil contamination by heavy metals has presented severe risks to human health through food chain.As one of the most promising remediation technologies,in-situ immobilization strategy has been widely adopted in practice.However,considering the large quantities of contaminated soil,it is still a huge challenge to design low-cost amendments with strong and long-term immobilization ability.Layered double hydroxides(LDHs)have drawn tremendous attention in fundamental research and practical application because of their unique properties.Moreover,owing to its super-stable mineralization effect to heavy metal ions,LDHs have exhibited great potential in the field of soil remediation.In this work,we mainly focused on the scale production strategy of LDHs with low-cost,and its application in soil remediation.Besides,several key challenges in using LDHs as amendments for immobilization of heavy metal ions are presented.We hope that this mini-review could shed light on the sustainable development of LDHs as amendment for heavy metals in future research directions.

关 键 词：Heavy metals POLLUTION REMEDIATION Layered double hydroxides Scale-up Super-stable mineralization effect 

分 类 号：X53[环境科学与工程—环境工程] TQ421[化学工程]