Best Effective Ways Of Removing Moisture Using Activated Alumina Balls
Activated alumina balls are a highly porous form of aluminum oxide that is known for its high adsorption capacity. This desiccant is popularly used for removal or purification of gasses, air, and liquid. Activated alumina balls have the capability of removing moisture/humidity in the fastest way possible. In this article, we will see how activated alumina balls can be used for removing moisture in ways fields of the industry.
Activate alumina balls for fluoride removal
The increased fluoride content in the water can cause a serious threat to mankind. An effective, affordable and safe way of securing this toxicity level to a safe value is by the employment of activated alumina balls. A bed of activated alumina balls is prepared and the water under treatment is made to pass through it. Due to its high surface area and high adsorption capacity, the activated alumina balls hold to be effective for the defluoridation of drinking water. The forte of the activated alumina fluoride removal process is that it adsorbs the fluoride content rather than filtering and effectively lowers the levels from 10ppm to 1ppm.
Activated alumina for water treatment
Arsenic is one of the dangerous contaminants of water. Being resistant to liquid water, this desiccant does not shrink, swell or get diluted when immersed in water for a long time. Thus, making it a perfect choice for water purification. The water to be treated is allowed to pass through a bed of activated alumina under high pressure. For improved results, more than one filter bed can be used back to back. The arsenic content gets adsorbed by activated alumina beds when passed continuously for a pre-determined time, and the processed water is collected for further use.
Due to higher surface area and maximum affinity towards water, activated alumina is one of the best air/gasses drying desiccants. The presence of humidity can contaminate the air/gasses by the ice formation or catalyst contamination. This condition can be avoided by passing the air/gas through the activated alumina balls. This cost-effective desiccant is mainly used in the industry to dry compressed air or gasses with relatively high moisture content.
Activated alumina for oil purification
Activated alumina has been used for the reconditioning of oils used in the turbine, transformer, and circuit breaker. Being resistant to shocks and abrasion, activated alumina balls are known to be highly effective in oil filtration. Oils change their characteristics with time. Acid is one of the by-products that oils generate as they deteriorate/oxidize after being in contact with moisture, air, heat, gases, etc. This if left unchecked can raise the total acid numbers causing serious damage to the mechanical parts. To avoid this, activation alumina balls can be employed in purification or removal of acids from oil. Here the number of alumina balls used depends on the total mass of oil.
Once the activated alumina balls get saturated with moisture, it becomes vital to regenerate it before further use. To remove moisture from activated alumina balls, a heatless or heated compressed air dryer is used. The hot air from the dryer is made to pass through these balls thus causing the removal of water vapors from the pores of the desiccant. Another way to regenerate saturated alumina balls is by the use of by a solution of sodium hydroxide (NaOH), hydrochloric acid (HCL), sulfuric acid (H2SO4), and alum (KAL(SO4).