Activated alumina on water purification

Activated Alumina on Water Purification

The Council Directive 80/777/EEC lays down the provisions applicable to the exploitation and marketing of natural mineral waters. Natural Mineral Waters are characterized by their constant chemical composition, of so-called “essential constituents” which are supposed to have a beneficial effect on the human organism. Activated alumina can filter the water by avoiding its impurities.

Natural Mineral Waters sources have to be continuously kept free from any environmental contamination (microbiological and chemical contaminants) because of their underground origin and the required measures of protection of the sources. Therefore, treatments for the removal of microbiological or chemical contamination are not allowed by the E.U. NMW legislation. Using activated alumina will not make any harmful effects on the water while purification.

However, for technological and food safety purposes a limited number of treatments may be used,e.g. removal of unstable elements (iron, sulfur and manganese compounds) by precipitation, filtration or treatment with activated alumina or ozone-enriched air without changing the composition of the Natural Mineral Waters as regards the essential constituents. Such treatments should be notified to and controlled by competent authorities.

Silica Gel

Silica gel is one of the best moisture absorbers. There is a lot of advantages for silica gel and there are no side effects. In many cases, most of the people will ask for the expiration date of the silica gel. How long silica gel is good for?

It is recommended that silica gel open to the atmosphere for longer than 15 minutes. Larger sachets should not be removed from their packaging for more than 1 hour before they are required for use. The shelf life of silica gel can safely be said to be between 4 and 12 months while it is in a sealed environment 

Although silica gel is possible for reuse. Silica gel will absorb wetness to keep things dry. Due to this process, we can protect damages of electronic devices such as your laptops,  mobile phones, camera lens from fogging or streaking, especially after you've been snapping photos in cold or wet conditions. Leave a couple of silica gel packs in your toolbox to prevent rusting.