Wednesday, 25 November 2015

Use Activated Alumina F200 to Purify Water

What is Activated Alumina?

Aluminium oxide is a widely used form of desiccant mainly employed in the purification of natural gas and liquids. Aluminium oxide is also used by municipal corporations in the cleansing of water meant for households. Activated alumina is a type of aluminium oxide, which is very much in use as it is extremely porous and has a high surface area. Activated Alumina desiccant has many properties, which make it extremely popular. These include extreme resistance to thermal shock and abrasion. Another positive point of using Activated Alumina is that when it is immersed in water, there are no physical changes to the desiccant. The Alumina does not shrink, swell up, soften  or disintegrate when it comes in contact with water.  

Activated Alumina Desiccant F200

Activated Alumina F200 is a highly porous form of aluminium oxide, which can absorb liquids and gases without bringing about any changes to its format. The desiccant F200 is very efficient and can be reused again and again. It is brought back to its original format by heating up to a temperature ranging from 350-600°F (In degree Celsius, it is 177-316°C).

Activated Alumina F200 has very much commercial importance as it is widely used for drying compressed air using pressure or the process of temperature swing adsorption. Another important characteristic of Activated Alumina F200 is its uniformly sized beads that help stop gas flow channelling and allows for nominal drop in pressure.   

Activated Alumina F200 for Water treatment 

The F200 version of Activated Alumina Desiccant finds great use in treatment of water used for household and industrial purposes. Activated Alumina F200 cleans up the water of impurities by the process of adsorption. Adsorption is defined as a process where the atoms and molecules of a gas, liquid or dissolved substance are adsorbed onto a solid surface. This adsorption process leads to the creation of a film of the adsorbate on the absorbent's surface. 

The process by which Activated Alumina F200 purifies the water is explained next. When the untreated water is passed through the desiccant, the water in the air will get stuck on the alumina and the air will move forward. This happens because the water molecules are bigger and cannot pass through the small pores of the Activated Alumina F200. The air molecules will pass through the pores as they are same size. The alumina can be regenerated by heating the desiccant, which lets go of all the water stored inside.