Activated Alumina AA-201
Smooth-sphere activated alumina for compressed-air and gas drying, HF removal, and defluoridation of drinking water — mechanically robust at high velocity.
View
Water & Effluent Treatment
Fluoride Removal from Drinking Water
Reducing fluoride in drinking water to WHO limits using activated-alumina adsorption — for municipal and community water supply in affected regions.
Quick Answer
Fluoride removal by adsorption passes drinking water through a bed of activated alumina, which adsorbs fluoride ions and reduces concentration to the WHO guideline of 1.5 mg/L. The media is periodically regenerated or replaced, providing a simple, robust solution for affected municipal and community supplies.
Process Challenge
Natural geological fluoride above 1.5 mg/L causes dental and skeletal fluorosis. Affected communities need a reliable, low-complexity treatment that can run with minimal operator skill and infrastructure.
How It Works
Raw water flows through a fixed bed of activated alumina, which adsorbs fluoride preferentially. When the bed approaches breakthrough it is regenerated with dilute caustic and acid, or replaced — restoring capacity.
Deployment
Suitable for municipal plants and decentralised community units. Low energy, no membranes, and simple operation make it well suited to remote and resource-limited settings.
FAQ
How often is the media replaced?
It depends on raw fluoride level, flow, and target. We design a monitoring and regeneration/replacement schedule so outlet fluoride stays within limit.
Selection Guidance
Use NSF-eligible defluoridation-grade activated alumina. Size the bed for the raw fluoride level, flow, and target, and plan a regeneration or media-replacement schedule based on breakthrough monitoring.
Recommended Products & Systems
Adsorbents & Media
Activated Carbon GAC 1240
Coal-based granular activated carbon (12×40 mesh) for taste, odour, chlorine, and dissolved-organic removal in municipal and industrial water treatment.
ViewEngineered Systems
Coalescing Filtration Skid
Two-stage coalescer/separator skid removing fine dispersed hydrocarbons and solids from water down to single-digit ppm — a polishing stage after gravity separation.
ViewIndustries Using This Application
Municipal Water Treatment
Activated carbon and activated alumina for taste/odour, dechlorination, and fluoride removal in drinking-water treatment — NSF-eligible media and complete units.
ViewSpecify a Solution for This Application
Provide your process conditions — our team will recommend grade, configuration, and sizing.