- mahaco
- CHINA
- 7 days
- 3000tons/month
Activated Alumina for Water Treatment: A Trusted Solution for Purification & Fluoride Removal
Advantages
① High Crushing Strength
② High Adsorption Capacity
③ Low Bulk density
④ Low Attrition Loss
⑤ Dust Free Operation
ACTIVATED ALUMINA—Defluorination Agent (A-AS-DF)
Activated alumina defluorinated just as the anion exchange resin, but the selectivity is much strong. The defluorination effect of the actived alumina is good. The capacity is stable, the absorbed fluorine is 6400g/cm3. It has high strength, low abrasion, no soften in water, no expansion, no powdery, no crack. It can widely used in the deep drying of cracked gas, ethylene and propylene, hydrogen-generation, air separation, instrument air drying and fluorine treatment for H2O2, also in the absorbing pollution material, such as H2S, SO2, HF and paraffin in the water gas, especially in the drinking water defluorination.
Product | Adsorbent | Size |
A-AS-DF | Activated Alumina | 14 x 28 (Tyler Mesh) |
A-AS-DF | Activated Alumina | 28 x 48 (Tyler Mesh) |
Activated alumina water treatment is widely accepted as the best and most cost effective adsorbent for the removal of arsenic and fluoride from drinking water. Wel is pleased to offer A-AS-DF for this purpose. It is specially formulated with a high surface area and high crush strength, making it ideal for the removal of both arsenic and fluoride from drinking water. We supplies some of the most reliable and competitively priced activated alumina for your water purification applications.

Technical Property of Activated Alumina
| Type Item | A-AS-04 Absorbent | A-AS-DF Defluoridizer | A-AS-MS Absorbent for H2O2 | A-AS-AC Antichlor | A-AS-C Catalyst carrier | A-AS-A Absorbent in air separation | |||
| Appearance | White ball | ||||||||
| Main crystal phase | χ-ρ | χ-ρ | γ | χ-ρ | γ | χ-ρ | |||
Chemical composition % | Al2O3 | ≥93 | ≥93 | ≥92 | ≥90 | ≥93 | ≥90 | ||
| Na2O | ≤0.3 | ≤0.3 | ≤0.5 | 0.15-0.3 | ≤0.3 | ||||
| I.L | 6-8 | 6-8 | ≤8 | ≤ | ≤5 | 6-8 | |||
| Bulk density,g/ml | 0.68-0.72 | 0.70-0.75 | 0.65-0.75 | 0.68-0.78 | 0.70-0.80 | 0.68-0.72 | |||
| Surface area,m2/g | ≥280 | ≥280 | 200-260 | ≥300 | ≥200 | ≥300 | |||
| Pore volume,ml/g | 0.3-0.45 | 0.3-0.42 | 0.4-0.46 | 0.3-0.5 | 0.4 | 0.3-0.5 | |||
| Static absorption,% | Water 20 | Fluorin 0.12 | Water 50 | Chlorine 10-20 | Water 50-70 | Water 20 | |||
| Activity,% | - | - | 56-62 | - | - | - | |||
| Loss on abrasion,% | ≤1.0 | ≤1.0 | ≤1.0 | ≤0.7 | ≤0.4 | ≤0.8 | |||
| Crushing strength, N/grain | Φ1-2 | ≥40 | ≥40 | - | ≥40 | - | - | ||
| Φ2-3 | ≥60 | ≥60 | - | - | - | - | |||
| Φ3-5 | ≥100 | - | ≥100 | ≥82 | ≥100 | ≥100 | |||
| Φ4-6 | ≥120 | - | ≥130 | ≥120 | ≥120 | ≥110 | |||
| Φ5-7 | ≥120 | ≥150 | ≥150 | ≥150 | ≥160 | ≥150 | |||
| Φ6-8 | ≥200 | ≥200 | ≥200 | ≥200 | ≥220 | ≥200 | |||
The products in other types or sizes can also be manufactured if to the user's request.
Application
A-AS-04 activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material;
A-AS-DF activated alumina is also widely used to remove fluoride from drinking water. Basically, the more alumina in the filter, the less fluoride will be in the final, filtered water.
A-AS-MS is for absorbent H2O2
A-AS-AC is for chlorine absorbent
A-AS-C in hydrogen peroxide production, as a selective adsorbent for many chemicals including,in removal from gas streams .
A-AS-A activated alumina is used as a charge material in foreline traps to prevent generated by from backstreaming into the system
Industry standard HG/T39272007 Activated Alumina is issued by Zhengzhou Mahaco Industrial Co,Ltd
Activated Alumina for Water Treatment: A Trusted Solution for Purification & Fluoride Removal
For communities and industries seeking reliable, efficient, and cost-effective water purification, Activated Alumina (AA) stands as a proven and powerful adsorbent media. ZHENGZHOU MAHACO INDUSTRIAL CO., LTD., a professional Activated Alumina manufacturer, specializes in producing high-grade activated alumina for water treatment, offering an exceptional solution for removing contaminants and ensuring safer water.
The Critical Challenge: Contaminants in Water
Excess fluoride, arsenic, selenium, and silica in drinking and process water pose significant health and operational risks. Traditional filtration methods often fall short in removing these specific ions effectively and economically.
Why Activated Alumina is the Superior Choice for Water Purification
Activated alumina balls for water treatment are highly porous aluminum oxide with a tremendous surface area, acting as a selective adsorbent. Its mechanism involves the exchange of ions, effectively trapping contaminants from water as it passes through a filtration bed.
Primary Applications in Water Treatment:
Fluoride Removal: The most prominent application. Our activated alumina for fluoride removal is exceptionally effective, reducing fluoride levels to meet WHO and local drinking water standards (typically below 1.5 mg/L). It is the best media for defluoridation in both municipal and household filter systems.
Arsenic Removal: Effectively adsorbs arsenic (As V), providing a crucial solution for arsenic removal from groundwater in affected regions.
Phosphate & Silica Reduction: Widely used in industrial water treatment plants to reduce phosphate and silica levels, preventing scaling and protecting downstream equipment.
General Water Purification: Acts as a broad-spectrum adsorbent for various organic and inorganic impurities, improving taste, odor, and clarity.
Advantages of ZHENGZHOU MAHACO's Activated Alumina Balls for Water Treatment:
High Adsorption Capacity: Offers a large number of binding sites, ensuring long bed life and efficient contaminant removal.
Excellent Physical Strength: High crush strength minimizes breakdown and channeling, reducing pressure drop and maintenance costs.
Selective Adsorption: Effectively targets fluoride, arsenic, and other specific ions without removing essential minerals excessively.
Regenerability: The media can be regenerated with a mild alkali (e.g., alum or caustic soda) solution, restoring its adsorption capacity and offering significant long-term cost savings.
Stability: Chemically inert and stable over a wide pH range, ensuring consistent performance.
Technical Specifications & Packaging
Our water-grade activated alumina is available in standard sizes (e.g., 1-3mm, 2-5mm) optimized for flow dynamics in pressure filters. It is characterized by high surface area and a favorable pore structure for maximum contaminant uptake.
We ensure secure delivery with standard packaging in 25kg sealed, moisture-proof bags or 1-ton jumbo bags. Customized packaging solutions are available to meet specific logistical needs. As a leading activated alumina ball supplier, ZHENGZHOU MAHACO supports global projects with reliable supply and technical guidance.
Partner with a Trusted Manufacturer for Your Water Safety Goals
Whether you are engineering a large-scale community water defluoridation plant, an industrial process water system, or sourcing media for household fluoride water filters, choosing the right media is critical.
ZHENGZHOU MAHACO INDUSTRIAL CO., LTD. provides not just a product, but a comprehensive water treatment solution. Contact us today for product specifications, performance data, and expert support to select the optimal activated alumina adsorbent for your specific water purification challenge. Ensure cleaner, safer water with our proven technology.







