Applications of biomass-based materials to remove fluoride from wastewater: A review. (August 2022)

• Record Type: Journal Article
• Authors: Huang, Lei; Luo, Zhixuan; Huang, Xuexia; Wang, Yian; Yan, Jia; Liu, Wei; Guo, Yufang; Babu Arulmani, Samuel Raj; Shao, Minhua; Zhang, Hongguo
• Is Part Of: Chemosphere. Volume 301(2022)
• Publication Date: 2022-08
• Subjects: Biomass materials -- Biomass carbonized materials -- Biomass modified method -- Adsorption mechanism; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2022.134679
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Fluoride is one of the essential trace elements for the human body, but excessive fluoride will cause serious environmental and health problems. This paper summarizes researches on the removal of fluoride from aqueous solutions using newly developed or improved biomass materials and biomass-like organic materials in recent years. These biomass materials are classified into chitosan, microorganisms, lignocellulose plant materials, animal attribute materials, biological carbonized materials and biomass-like organic materials, which are explained and analyzed. By comparing adsorption performance and mechanism of adsorbents for removing fluoride, it is found that carbonizing materials and modifying adsorbents with metal ions are more beneficial to improving adsorption efficiency and the adsorption mechanisms are various. The adsorption capacities are still considerable after regeneration. This paper not only reviews the properties of these materials for fluoride removal, but also focuses on the comparison of materials performance and fluoride removal mechanism. Herein, by discussing the improved adsorption performance and research technology development of biomass materials and biomass-like organic materials, various innovative ideas are provided for adsorbing and removing contaminants. Graphical abstract: Image 1 Highlights: The performance of biomass materials and biomass-like materials for removing fluoride in aqueous solutions were summarized. The properties of the materials were compared and the mechanisms of materials were explained. The ways to improve the adsorption properties of biomass materials and the development of research technology were discussed. Some outlooks for removing fluoride from water by biomass materials were suggested in the future.