Removal of fluoride in membrane-based water and wastewater treatment technologies: Performance review

Damtie, Mekdimu Mezemir; Woo, Yun Chul; Kim, Bongchul; Hailemariam, Ruth Habte; Park, Kwang Duck; Shon, Ho Kyong; Park, Chanhyuk; Choi, June-Seok

doi:10.1016/j.jenvman.2019.109524

Cited by 99 publications

(46 citation statements)

References 148 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, increasing attention has been paid to the separation and processing of complex mixtures, including industrial and domestic wastes, sea water [ 39 , 40 , 41 , 42 , 43 , 44 , 45 ]. There is every reason to believe that their processing, along with recycling, would determine a major part of production of a number of metals and their compounds [ 39 , 46 , 47 , 48 , 49 , 50 ].…”

Section: Introductionmentioning

confidence: 99%

Selectivity of Transport Processes in Ion-Exchange Membranes: Relationship with the Structure and Methods for Its Improvement

Стенина

Голубенко

Nikonenko

et al. 2020

IJMS

124

View full text Add to dashboard Cite

Nowadays, ion-exchange membranes have numerous applications in water desalination, electrolysis, chemistry, food, health, energy, environment and other fields. All of these applications require high selectivity of ion transfer, i.e., high membrane permselectivity. The transport properties of ion-exchange membranes are determined by their structure, composition and preparation method. For various applications, the selectivity of transfer processes can be characterized by different parameters, for example, by the transport number of counterions (permselectivity in electrodialysis) or by the ratio of ionic conductivity to the permeability of some gases (crossover in fuel cells). However, in most cases there is a correlation: the higher the flux density of the target component through the membrane, the lower the selectivity of the process. This correlation has two aspects: first, it follows from the membrane material properties, often expressed as the trade-off between membrane permeability and permselectivity; and, second, it is due to the concentration polarization phenomenon, which increases with an increase in the applied driving force. In this review, both aspects are considered. Recent research and progress in the membrane selectivity improvement, mainly including a number of approaches as crosslinking, nanoparticle doping, surface modification, and the use of special synthetic methods (e.g., synthesis of grafted membranes or membranes with a fairly rigid three-dimensional matrix) are summarized. These approaches are promising for the ion-exchange membranes synthesis for electrodialysis, alternative energy, and the valuable component extraction from natural or waste-water. Perspectives on future development in this research field are also discussed.

show abstract

Section: Introductionmentioning

confidence: 99%

Selectivity of Transport Processes in Ion-Exchange Membranes: Relationship with the Structure and Methods for Its Improvement

Стенина

Голубенко

Nikonenko

et al. 2020

IJMS

124

View full text Add to dashboard Cite

show abstract

“…Fluorine is an active non-metal element that has negatively charged species i.e., fluoride ions, and affects human health, which includes teeth and bones. Up to a certain concentration level, it can have a positive effect; however, above 1.5 mg L −1 , the impact is negative [1,2]. In particular, according to the International Standards Organization, the acceptable concentration values of fluoride in drinking water are usually 0.5-1.0 mg L −1 .…”

Section: Introductionmentioning

confidence: 99%

“…In developing countries, this problem is more obvious because the drinking water is derived mainly from untreated groundwater therefore, the issue of effective fluoride removal becomes problematic in these areas, mainly due to the lack of adequate and basic infrastructure but also due to the lack of relevant knowledge [12,13]. Fluoride in the environment occurs both through its natural presence in the earth's crust, i.e., natural rocks, mainly as sellaite (MgF 2 ), fluorspar (CaF 2 ), cryolite (Na 3 AlF 6 ) and fluorapatite (Ca 3 (PO 4 ) 2 Ca(FCl 2 ) and through contamination of water bodies caused by anthropogenic actions, i.e., the excessive use of phosphate fertilizers that can reach the groundwater sources [2,8]. Among water sources, groundwater usually contains higher fluoride concentrations ranging from 1.0 mg L −1 to greater than 35.0 mg L −1 depending on the local geology, the physical and chemical behavior of the aquifer and its interface with the environment [9].…”

Section: Introductionmentioning

confidence: 99%

“…Coagulation Efficient and easy High doses; residual concentrations; significant amounts of sludge [18] Membrane technology is an effective technology in reducing fluoride to acceptable concentrations. Nevertheless, it has received less attention than other technologies because it is supposed to be an expensive process [2], especially in comparison with adsorption techniques. However, the advantages of using the membrane process are numerous.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Mini Review of Recent Findings in Cellulose-, Polymer- and Graphene-Based Membranes for Fluoride Removal from Drinking Water

Tolkou

Meez

Kyzas

et al. 2021

View full text Add to dashboard Cite

Effective fluoride removal from water is a persistent global concern both for drinking water and wastewater treatment. According to World Health Organization (WHO), standards for the maximum contaminant level in drinking water cannot be higher than 1.5 mg F− L−1 since affects the skeletal and nervous systems of humans. Various technologies have been developed to decrease fluoride concentration from waters, such as adsorption, coagulation, precipitation and membrane separation. Membrane technology has been found to be a very effective technology, significantly reducing fluoride to desired standards levels; however, it has received less attention than other technologies because it is a costly process. This review aims to discuss the recent studies using modified membranes for fluoride removal. Emphasis is given on cellulose-, polymer- and graphene-based membranes and is further discussing the modification of membranes with several metals that have been developed in the last years. It was observed that the main focus of the total publications has been on the use of polymer-based membranes. Most of the membranes applied for defluoridation exhibit greater efficiency at pH values close to that of drinking water (i.e., 6–8), and maximum treatment capacity was obtained with the use of a cellulose modified membrane Fe-Al-Mn@chitosan with a permeate flux of 2000 L m−2 h−1, following the carbon-based amyloid fibril nano-ZrO2 composites (CAF-Zr) 1750 L m−2. A technical-economic comparison study of NF and RO is also referred, concluding that NF membrane is slightly less expensive.

show abstract

“…Different techniques have been reported for diminishing the fluoride ions level, which includes mainly precipitation, membrane techniques i. e., nanofiltration, and electrodialysis, and adsorption techniques . All these methods are well recognized to reduce fluoride ions concentration up to acceptable standards.…”

Section: Introductionmentioning

confidence: 99%

Chloroacetyl‐Mediated Modification of Chitosan by Tannic Acid to Synthesize Economical Tanninate‐Chitosan and Its Use in Fluoride Ions Adsorption from Aqueous Solution

2020

View full text Add to dashboard Cite

The multi‐functional, green and environmental acceptable adsorbents were synthesized from activated chitosan for fluoride ions via mild‐strategies. Chloroacetylation reaction was performed to integrate an active group to the chitosan structural unit. Subsequently, the integrated active group was derivatized with tannin acid, an environmental‐friendly natural polyphenol via a simple reaction. The synthesized products were evaluated for their structures via FTIR, 1H‐NMR, UV, SEM‐EDS, elemental mapping, BET surface analysis, and XPS. The capability of the synthesized green products was appraised for fluoride ions sorption in circumneutral conditions. The results confirmed the maximum sorption capability of ≥97 % even at trace level and also proved remarkable results in competition with competitive ions. The equilibrium sorption data supported the maximum adsorption capacity of 28.57 mg g−1 by the Langmuir model within 60 min at pH 7.0, which is nearly analogous to the experimental data of 22.02 mg g−1 at 10 ppm. Therefore, in conclusion, the proposed green adsorbent is economical, and is even appropriate at almost neutral pH, which designates its applicability for treating drinking water.

show abstract

Removal of fluoride in membrane-based water and wastewater treatment technologies: Performance review

Cited by 99 publications

References 148 publications

Selectivity of Transport Processes in Ion-Exchange Membranes: Relationship with the Structure and Methods for Its Improvement

Selectivity of Transport Processes in Ion-Exchange Membranes: Relationship with the Structure and Methods for Its Improvement

A Mini Review of Recent Findings in Cellulose-, Polymer- and Graphene-Based Membranes for Fluoride Removal from Drinking Water

Chloroacetyl‐Mediated Modification of Chitosan by Tannic Acid to Synthesize Economical Tanninate‐Chitosan and Its Use in Fluoride Ions Adsorption from Aqueous Solution

Contact Info

Product

Resources

About