Issue 8, 2021

A comprehensive review of adsorbents for fluoride removal from water: performance, water quality assessment and mechanism

Abstract

Excessive intake of fluoride can lead to a series of fluorosis-based diseases, and how to remove the excess fluoride from water is an urgent issue worldwide. Among various defluoridation methods, adsorption is a well-studied and widely used technology due to its simple design, convenient operation and low cost. In this review, we comprehensively summarized and evaluated different kinds of defluoridation adsorbents developed in the last decade, including adsorbents derived from natural minerals, industrial wastes and biomass, metal oxide and hydroxide adsorbents, and carbon-based adsorbents. The preparation methods of adsorbents and the strategies to enhance their defluoridation performance are highlighted. It is found that regulating and controlling the crystalline phases, microstructures and active sites and incorporating other materials to form composites are effective methods to enhance the defluoridation performances of adsorbents. The water quality after defluoridation and related influencing factors are discussed in detail. Moreover, the fluoride removal mechanisms of different adsorbents are outlined and analyzed. Based on the review, the advantages and disadvantages of different adsorbents, as well as the prospects and challenges are also discussed.

Graphical abstract: A comprehensive review of adsorbents for fluoride removal from water: performance, water quality assessment and mechanism

Article information

Article type
Critical Review
Submitted
02 אפר 2021
Accepted
03 יונ 2021
First published
03 יונ 2021

Environ. Sci.: Water Res. Technol., 2021,7, 1362-1386

A comprehensive review of adsorbents for fluoride removal from water: performance, water quality assessment and mechanism

W. Gai and Z. Deng, Environ. Sci.: Water Res. Technol., 2021, 7, 1362 DOI: 10.1039/D1EW00232E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements