Fluoride-containing water: A global perspective and a pursuit to sustainable water defluoridation management -An overview

doi:10.1016/j.jclepro.2020.124236

Chia Nan University of Pharmacy & Science Institutional Repository > 環境永續暨休閒學院 > 環境資源管理系(所) > 期刊論文 > Item 310902800/34492

Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/34492

標題:	Fluoride-containing water: A global perspective and a pursuit to sustainable water defluoridation management -An overview
作者:	Lacson, Carl Francis Z. Lu, Ming-Chun Huang, Yao-Hui
貢獻者:	Chia Nan Univ Pharm & Sci, Dept Environm Resources Management
關鍵字:	Fluoride Defluoridation Fluoride environmental levels Fluoride water standards Water treatment Wastewater treatment
日期:	2021
上傳時間:	2023-11-11 11:57:21 (UTC+8)
出版者:	ELSEVIER SCI LTD
摘要:	High levels of fluoride, though, naturally occurring (which can reach as high as 2,800 mg F-/L) in the environment can be toxic to various living organisms. Moreover, it can be transported by water and by its confluences and exacerbated by anthropogenic activities making it an environmental and public health concern. World Health Organization has set the standard for drinking water at 1.5 mg F-/L while the average national effluent standard is 15 mg F-/L. Hence, different defluoridation techniques of aqueous solutions were developed in the past years. This study provides an overview of the popular methods in defluoridation (i.e. adsorption, ion-exchangers, precipitation, membrane, electrocoagulation, and electrodialysis). The mechanisms, critical operational conditions, and research progress are presented. The results further reveal that adsorption, regarded as the primary technique for defluoridation, still needs further development and mostly on its bench-scale and is only proven effective at low initial concentrations. In this study, sorption techniques are also estimated to be 10 to 20 times more expensive in operational costs relative to the other treatments. Furthermore, the majority of the examined literature demonstrated defluoridation at limited initial concentration <100 mg F-/L. In contrast, industrial effluents may reach 250-1,000 mg F-/L (up to similar to 10,000 mg F-/Lat extreme cases). Inadequate removal of fluoride in water by single treatment also compels researchers to explore hybrid treatments. In addition, due to the lack of wastewater treatment facilities requiring high capital cost, bioremediation, a commonly overlooked alternative, is presented for temporarily alleviating fluoride levels. Finally, challenges such as limited literature for disposal of secondary pollution and cost evaluation along with other potential research perspectives are further discussed. (C) 2020 Elsevier Ltd. All rights reserved.
關聯:	J CLEAN PROD, v.280, 124236
Appears in Collections:	[環境資源管理系(所)] 期刊論文

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	314	View/Open
j.jclepro.2020.124236.pdf		1814Kb	Adobe PDF	222	View/Open

Loading...