SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2022, Vol. 41 ›› Issue (1): 42-48.DOI: 10.1016/j.cjche.2021.09.023

• Review • Previous Articles     Next Articles

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

Fangqi Mao, Peipei Hao, Yuquan Zhu, Xianggui Kong, Xue Duan   

  1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2021-06-28 Revised:2021-09-23 Online:2022-02-25 Published:2022-01-28
  • Contact: Xianggui Kong,E-mail address:kongxg@mail.buct.edu.cn
  • Supported by:
    This work was financially supported by the National Natural Science Foundation of China (21978023), the Fundamental Research Funds for the Central Universities (XK1803-05), the Innovative Achievement Commercialization Service-Platform of Industrial Catalysis (2019-00900-2-1) and the National Basic Research Program of China (2014CB932104).

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

Fangqi Mao, Peipei Hao, Yuquan Zhu, Xianggui Kong, Xue Duan   

  1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  • 通讯作者: Xianggui Kong,E-mail address:kongxg@mail.buct.edu.cn
  • 基金资助:
    This work was financially supported by the National Natural Science Foundation of China (21978023), the Fundamental Research Funds for the Central Universities (XK1803-05), the Innovative Achievement Commercialization Service-Platform of Industrial Catalysis (2019-00900-2-1) and the National Basic Research Program of China (2014CB932104).

Abstract: 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.

Key words: Heavy metals, Pollution, Remediation, Layered double hydroxides, Scale-up, Super-stable mineralization effect

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