Activated Alumina Water Treatment
1.Activated alumina water treatment has a large fluoride removal capacity
2.It has good physical performance, high strength, easy to regenerate, long life, fluoride removal effect
3.It can be used as drinking water fluoride removal or other industrial devices.
Product Introduction
Production Introduction
Activated alumina water treatment produced by Avant can be used as high fluoride (fluorine removal ability) of drinking water defluoride agent, defluoride agent, and deacidification agent of transformer oil.
It is used as a drying cycle for the regeneration of oxygen industry, textile industry, electronics industry, alkylbenzene production of alkane gas, etc.
There are several ways to remove fluorine:
(1) Membrane Method;
(2) Flocculation Precipitation Method;
(3) Ion Exchange Method;
(4) Adsorption Filtration Method.
The main factors affecting the adsorption performance of water treatment activated alumina:
(1) Particle size: the smaller the particle size, the higher the adsorption capacity. But the smaller the particle size, the lower the particle strength;
(2) PH value of raw water: the lower the PH value, the higher the adsorption capacity of it;
(3) Initial fluorine concentration in raw water: the higher the initial fluorine concentration, the higher the adsorption capacity;
(4) Alkalinity of raw water: the concentration of bicarbonate in raw water is high, and the adsorption capacity is reduced;
(5) chloride ion and sulfate ion;
(6) Arsenic: water treatment activated alumina also has an adsorption effect on arsenic in water.
The accumulation of arsenic on it causes a decrease in the adsorption capacity of fluoride ions, and it is also difficult to wash out the arsenic samples during regeneration.
Specification
Al2O3 | ≥92 | ≥92 | % |
SiO2 | ≤0.10 | ≤0.10 | % |
Fe2O3 | ≤0.04 | ≤0.04 | % |
Na2O | ≤0.30 | ≤0.30 | % |
Bulk density | ≤0.75 | ≤0.75 | g/ml |
Surface area | ≥320 | ≥320 | m2/g |
Pore volume | ≥0.40 | ≥0.40 | ml/g |
Crushing strength | ≥30（1-3mm） | ≥60（1-3mm） | N/Granule |
Product feature and application
Water treatment activated alumina defluorination is the most common method and the most successful method. Because of its high adsorption capacity, good strength, wear resistance, long service life and stable performance, the water quality after defluorination meets the hygienic standards set by the state, so it is one of the indispensable water purification materials for sewage treatment. In sewage treatment, it is a porous adsorbent, which has mechanical strength, physical and chemical stability, high temperature resistance and corrosion resistance. In particular, it has a good effect on the treatment of fluorine-containing wastewater.
Product qualification
Function
It has selective ability to absorb water in gases, water vapor, and some liquids. After adsorption and saturation, water can be removed by heating at about 175-315℃ and resurrected. Adsorption and resurrection can take place multiple times. In addition to being used as a desiccant, it can also absorb the vapor of lubricating oil from polluted oxygen, hydrogen, carbon dioxide, natural gas, etc. It can also be used as catalyst, catalyst carrier and chromatographic analysis carrier. Al2o3 belongs to the category of chemical alumina, which is mainly used as adsorbent, water purifier, catalyst and catalyst carrier. According to different USES, its raw materials and preparation methods are different. Aluminum oxide under certain operating conditions and regeneration conditions, the product drying depth up to the dew point temperature -70 degrees below.
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