Research Progress of Treatment Technology and Adsorption Materials for Removing Chromate in the Environment

Materials (Basel). 2023 Apr 9;16(8):2979. doi: 10.3390/ma16082979.

Abstract

Cr is used extensively in industry, so the number of Cr (VI) hazards is increasing. The effective control and removal of Cr (VI) from the environment are becoming an increasing research priority. In order to provide a more comprehensive description of the research progress of chromate adsorption materials, this paper summarizes the articles describing chromate adsorption in the past five years. It summarizes the adsorption principles, adsorbent types, and adsorption effects to provide methods and ideas to solve the chromate pollution problem further. After research, it is found that many adsorbents reduce adsorption when there is too much charge in the water. Besides, to ensure adsorption efficiency, there are problems with the formability of some materials, which impact recycling.

Keywords: adsorption treatment; chromate; environmental protection; heavy metal ion.

Publication types

  • Review

Grants and funding

This research was funded by the National Key Research and Development Program of China (No.2021YFD1600402), the Key Research and Development Plan of Shaanxi Province (Grant No. 2020GXLH-Z-031), the Key Scientific Research Project of Weinan City (Grant No. 2020ZDYF-GYCX107), the Key Scientific Research Project of Education Department of Shaanxi Province (Grant No. 20JS106), Central Guidance on Local Science and Technology Development Fund of Shaanxi Province (NO.2020-ZYYD-NCC-9), the Shaanxi Provincial Department of Education Collaborative Innovation Center Project (20JY052), the National Natural Science Foundation of China (NO.52072075), the Science and Technology planning project of Qindu District, Xianyang City (NO.2021QKJ-001), and the Outstanding Youth Science Fund of Shaanxi Province (No.2018JC-028).