Activated Alumina and Silica Desiccant

Activated Alumina and Silica Desiccant

The information provided by the Commission Directive 2003/40/EEC was shown that under optimized process conditions the release of impurities due to the use of the activated alumina if it occurs at all, is usually less than the relevant limits set within the Directives mentioned above. In addition, due to the regular regeneration process of the activated alumina according to Good Manufacturing Practice (GMP) and the principles of Hazard Analysis and Critical Control Points (HACCP), there is no additional risk of microbial contamination.

It was also demonstrated that fluoride can be removed effectively from Normal Mineral Waters by filtration through a bed of activated alumina. To maintain compliance with the bounds set in Directive 2003/40/EC the fluoride content of the treated water must be monitored because of the reducing absorption capacity of the activated alumina during the cycle of use and regeneration.

The Panel concluded that the removal of fluoride from Normal Mineral Waters by filtration through activated alumina can be safely applied provided the critical steps as described above are implemented and monitored appropriately.

Silica Gel Desiccant

A silica gel or activated alumina is also known as Desiccant. A desiccant is a product that can absorb moisture from the atmosphere, thus reducing the humidity during a controlled environment and it can protect goods from moisture damage.

Silica, or silicon dioxide (SiO2), is that the same material found in quartz. The gel form contains millions of tiny pores that can absorb and hold moisture. Silica gel desiccant is essentially porous sand.

It is recommended that they're not left exposed to the atmosphere for extended than 15 minutes. Larger sachets should not be removed from their packaging for more than 1 hour before they are required for use. The time period of silica gel during a sealed environment can safely be said to be between 4 and 12 months.