Fluoride Remover

Fluoride Remover

Activated alumina-based fluoride removal media engineered for continuous-flow municipal and industrial water treatment systems. Manufactured via controlled precipitation and thermal activation, this porous granular media targets dissolved fluoride ions (F-) through chemisorption and surface ion exchange

  • Product Introduction

Activated alumina-based fluoride removal media engineered for continuous-flow municipal and industrial water treatment systems. Manufactured via controlled precipitation and thermal activation, this porous granular media targets dissolved fluoride ions (F-) through chemisorption and surface ion exchange. Designed for drinking water compliance and heavy industrial effluent polishing, it maintains structural integrity under high hydraulic loading without bed compaction or excessive pressure drop.

 

Product Specifications:

 

Parameter

Specification Limit

Test Method

Active Ingredient

Activated Alumina (Al2O3), >= 92.5%

XRF Spectrometry

Static Adsorption Capacity

>= 4.5 mg/g (at equilibrium Ce = 1.0 mg/L)

Batch Equilibrium Test

Particle Size Distribution

8 x 14 Mesh (1.4 mm - 2.4 mm)

ASTM D2862

Bulk Density

0.75 - 0.85 g/cm3

ASTM D2854

Attrition Loss (Abrasion)

<= 0.5%

ASTM D4058

Specific Surface Area

>= 280 m2/g

BET Nitrogen Adsorption

Operational pH Range

5.5 - 7.5

Potentiometric Titration

Loss on Ignition (1000°C)

<= 3.0%

Gravimetric Analysis

 

Chemical & Physical Properties:
Appearance: White to off-white spherical or granular porous beads.
Chemical Family: Metal oxide adsorbent (Al2O3).
Solubility: Insoluble in water and organic solvents; soluble in strong acids and strong alkalis.
Pore Structure: Macroporous and mesoporous network optimized for internal diffusion of fluoride ions, minimizing intra-particle mass transfer resistance.
Thermal Stability: Stable up to 400°C in dry operational environments. 

 

Applications:
Municipal Potable Water Treatment: Reduces fluoride concentrations from raw groundwater sources down to WHO guidelines (<= 1.5 mg/L).
Industrial Wastewater Polishing: Treats effluent streams from semiconductor manufacturing, aluminum smelting, and glass etching facilities to meet local discharge permits.
Groundwater Remediation: Fixed-bed pressure vessel filtration for remote community water supply stations.

 

Pharmaceutical Manufacturing Relevance:
Complies with stringent water purification protocols for active pharmaceutical ingredient (API) manufacturing and facility utility water loops. Deployed in pre-treatment trains to remove trace fluoride prior to reverse osmosis (RO) and electrodeionization (EDI) units, preventing membrane scaling and downstream ion-selective electrode fouling. Low extractable metals profile verified via ICP-MS testing against USP <232>/<233> heavy metal limits.

 

Grade & Quality Requirements:
Standard Municipal Grade (FR-M):
Optimized for deep bed service runs in gravity-fed and pressure vessel filters.
High-Purity Industrial Grade (FR-I): Low iron and silica leaching profiles tailored for electronics-grade ultrapure water (UPW) loops.
Regulatory Compliance: NSF/ANSI Standard 61 certified for drinking water system components; REACH registered for European import compliance.

 

Quality Control
Every production lot undergoes multi-stage verification prior to dispatch:
Raw Material Assay: Incoming bauxite-derived precursor checked for purity via atomic absorption spectroscopy.
Physical Durability Testing: Automated attrition tumbling to measure mechanical resistance and prevent fines generation during backwashing cycles.
Dynamic Column Testing: Pilot-scale column runs conducted on representative synthetic feed water to verify breakthrough capacity before batch release.

 

Technical Documents:
COA (Certificate of Analysis): Supplied per production batch, detailing exact specific surface area, mesh size distribution, and dynamic adsorption capacity. [Download Sample COA PDF]
SDS (Safety Data Sheet): Comprehensive hazard, handling, and PPE guidelines compliant with GHS standards. [Download SDS PDF]
TDS (Technical Data Sheet): Complete engineering parameters, pressure drop curves, and backwash expansion charts. [Download TDS PDF]

 

Packaging & Storage:
Standard Packaging:
25 kg multi-layer polyethylene-lined kraft paper bags.
500 kg / 1000 kg polypropylene bulk FIBC bags with discharge spouts.
Storage Conditions: Store in dry, sealed pallets away from direct moisture and volatile organic compounds. Material is hygroscopic; opened bags must be heat-sealed or tightly closed immediately.
Shelf Life: 24 months from manufacture date when stored in unopened original packaging under dry conditions.

 

Supply & Procurement:
MOQ (Minimum Order Quantity):
1 Metric Ton (1 Pallet / 40 bags of 25 kg).
Sample Policy: 1 kg laboratory evaluation sample available free of charge; freight collect via courier account.
Lead Time:
Standard stock grades: Dispatch within 5–7 business days.
Custom mesh sizes / OEM formulations: 15 - 20 business days.
Bulk Supply Capacity: Annual supply agreements supported by a stable production output of 5,000 Metric Tons per year. Full container load (20'FCL holding 20 MT) direct factory shipments available.

 

OEM / Custom Specification:
Custom manufacturing parameters available for long-term contract partners:
Particle Size Tuning: Custom sizing ranges from 10 x 28 mesh up to 4 x 8 mesh.
Impregnated Formulations: Custom surface doping (e.g., iron-oxide coating) available upon engineering review.
Private Labeling: Neutral woven bags or customer-specified branded pallet wrapping for chemical distributors.

 

FAQ:

Q: What is the typical service life of the media before replacement or regeneration?

A: Service life ranges from 12 to 24 months depending on raw water fluoride concentration, empty bed contact time (EBCT), and competing ion concentrations (such as alkalinity and sulfate). Regeneration is chemically executed using a dilute caustic soda (NaOH) solution followed by neutralization with acidified rinse water.

Q: Does this media alter the pH of the treated water?

A: Initial operation may cause a slight upward drift in pH (0.5 - 1.0 units) during the first few bed volumes due to surface hydroxyl release. Pre-rinsing and conditioning protocols detailed in the TDS eliminate this effect.

Q: How does sulfate or silica concentration affect fluoride removal efficiency?

A: High background concentrations of dissolved silica and sulfate compete for active adsorption sites, moderately reducing overall fluoride dynamic capacity. Pilot testing using site-specific water analysis is recommended when sulfate exceeds 250 mg/L.

 

Request a Quote:
Submit your required volume, destination port, and water analysis parameters for an itemized commercial quotation including CIF/FOB terms.

 

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