Activated alumina characteristic analysis

In the petrochemical industry, fertilizer industry , widely used as catalysts, catalyst supports . Activated alumina adsorption characteristics and thus used as a gas and liquid desiccants , adsorbents gas purification , drinking water fluoride removal agent , industrial wastewater color and odor eliminating agents.

Can be used with household fluoride in cylinder form a complete set, is the ideal drinking water fluoride removal equipment in the family. The fluoride in filter material can also be used with the waterworks fluoride removal equipment or industrial fluoride removal equipment systems. Household fluoride removal equipment fluoride in liao activation: configuration of aluminium sulfate solution (3 litres of water, 0.3 kg of solid aluminum sulfate), alumina fluoride in filter material to be included in the above solution, soak 5-10 hours abandon to immersion to appropriate mixing (soaked), then wash with clear water for 3 to 5 times, each time 2 liters of water, or mixed with PH reclamation, control the PH 7.5. Activated alumina fluoride in filter material can use 6 to 8 years in a row, when surface tan, fluoride in effect is significantly reduced, this is due to the water pollution of impurities, so it's best to every half an year is treated with dilute hydrochloric acid 3%, its operating method and the regeneration method is the same.

The main factors influencing the activated alumina fluoride agent is

Today mainly for everyone say affect activated alumina fluoride agent adsorption performance what element? . Activated alumina fluoride in a multiple porous spherical material, can have very strong adsorption function, large specific surface area, high compressive strength hardness, long service life, and can be used repeatedly through regeneration methods. This product is a white, spherical porous material non-toxic, odourless, not powder, insoluble in water. Widely used in petrochemical, chemical, textile, metallurgical and other industries of instrument air drying, can also be used for the iron and steel, petroleum cracking gas, PVC, propylene in the liquid phase and gas phase depth is dry. Understand the factors affecting activated alumina fluoride agent adsorption performance, to avoid the disadvantage factors, make active aluminum oxide better work.

(1) particle size: the smaller the particle size, the higher adsorption capacity, but the smaller the particle size, particle strength is lower, affect the service life.

2 raw water PH value: when the PH value is greater than 5, the lower the PH, the higher the adsorption capacity of activated alumina fluoride agent.

(3) initial fluoride concentration in the raw water, the higher the initial concentration of fluorine, adsorption capacity is bigger.

(4) raw water alkalinity: heavy concentration of carbonate ions in raw water, high adsorption capacity will reduce.

(4) the chloride ion and sulfate ion.

（5） the effects of arsenic: activated alumina fluoride adsorption for the arsenic in the water, the accumulation of arsenic in activated alumina fluoride agent on the falling of fluorine ion adsorption capacity, and make renewable elution arsenic ion more difficult.