Fluoride Removal Mechanisms in Water Treatment Systems
Summary
Excess fluoride in drinking water poses widespread public health challenges, notably dental and skeletal fluorosis in affected regions. Diverse treatment strategies have been developed to lower fluoride concentrations to safe levels. Adsorption processes harness a range of solid materials—including activated alumina, engineered nanoparticles and biosorbents—to sequester fluoride ions via surface binding. Ion-exchange resins selectively replace fluoride with less harmful anions, offering regenerable operation. Coagulation-precipitation methods employ metal salts to form insoluble fluoride complexes, which can then be removed by sedimentation or filtration. Membrane-based approaches such as reverse osmosis and nanofiltration achieve high removal efficiencies through size exclusion and charge repulsion. Electrochemical techniques and hybrid systems combine these principles to enhance performance under variable water chemistries. Recent advances focus on tailoring adsorbent surface chemistry, integrating renewable feedstocks and developing low-cost modular units for decentralised applications.
Research from Nature Portfolio
No recent Nature Portfolio content available.
Fluoride Removal Mechanisms in Water Treatment Systems publication trend
The graph below shows the total number of articles in fluoride removal mechanisms in water treatment systems across all publications each year (not limited to Nature Index journals).
Technical terms
Adsorption: The process by which fluoride ions adhere to the surface of a solid sorbent through physical or chemical interactions.
Ion exchange: A mechanism in which fluoride ions in solution are swapped for hydroxide or other anions bound to a polymeric resin.
Coagulation-precipitation: Removal of fluoride by inducing it to form insoluble metal–fluoride compounds that settle out of suspension.
Membrane filtration: Separation of fluoride from water using semipermeable membranes under pressure, such as reverse osmosis or nanofiltration.
Isotherm model: A mathematical description of how fluoride concentration at equilibrium relates to the amount adsorbed on a solid surface.
References
- A Review on Adsorption of Fluoride from Aqueous Solution. Materials (2014).
- Zeolitic imidazolate framework-8 nanoparticle: a promising adsorbent for effective fluoride removal from aqueous solution. Applied Water Science (2019).
- Removal of Fluoride from Drinking Water by Sorption Using Diatomite Modified with Aluminum Hydroxide. Journal of Analytical Methods in Chemistry (2019).
About these summaries
This Nature Research Intelligence Topic summary is created with the cited references and a large language model. We take care to ground generated text with facts, and have systems in place to gain human feedback on the overall quality of the process in line with our AI principles. We strive to create accurate and useful summaries for people unfamiliar with the research topic and that supports this goal. These pages are a beta release and will be updated as we learn how best to help people gain value from a research topic summary.
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.