activated alumina


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activated alumina

n
(Elements & Compounds) a granular highly porous and adsorptive form of aluminium oxide, used for drying gases and as an oil-filtering material and catalyst
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Activated alumina process is one of the most prevalently used adsorption methods for the defluoridation of drinking water.
Summary: Activated alumina process is one of the most prevalently used adsorption methods for the defluoridation of drinking water.
The one desiccant holder used in the tests documented here consist of a pair of 1/8 inch (3.2 mm) mesh metal screens with a 2.0 inch (51 mm) gap between them to allow for filling with approximately 10 lb (4.5 kg) of activated alumina desiccant beads as shown in Figure 2.
The method uses nano-cavitation and activated alumina with the capacity of 40 liters per second.
Ion exchange resins activated carbon and activated alumina were used for removal of selected contaminants.
The efficacy of the chromosorb, the neutral activated alumina, the acidic activated alumina, and Florisil as dispersants was analyzed.
Activated Alumina. Activated alumina is the most commonly used adsorbent for arsenic removal from contaminated water [14,16, 51, 52].
Also new at The Water Exchange is an informative YouTube video on how to remove fluoride from municipal water using three methods: activated alumina, bone char carbon and reverse osmosis filtration.
Although adsorption of defluoridation from drink water by activated alumina was successfully demonstrated, the fluoride removal capacity changed significantly with pH value of water.
The leaching rate of alumina almost does not change during the 1.5-3.0 h reaction period because activated alumina was already reacted completely after 1.5 h.
Reverse-osmosis filters and carbon filters with activated alumina remove most of the fluoride, but water softeners and charcoal or carbon filters do not.