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Fluoride removal agent

Metalcess’ self-developed fluoride removal agent, utilizing a porous hydroxyl-functionalized composite carrier with an adsorption capacity of 8.5–12mg/g, can reliably reduce fluoride from 50~500mg/L to below 1mg/L, achieving an efficiency improvement of over 30% and facilitating compliance with discharge standards such as GB 8978-1996. This fluoride removal agent is resistant to high salinity (Cl-, SO₄2-≤ 5000mg/L) and interference from low-concentration heavy metals, can be used in hydrometallurgy (leaching solution purification, electrolyte purification and son on), wastewater treatment, and drinking water industry.

General Overview of Fluoride Removal Agent

For fluoride removal process in a weakly acidic system (pH 5.0–6.5), traditional methods such as lime precipitation and conventional adsorption from low efficiency (fluoride levels are difficult to reduce below 5mg/L), high costs, and difficulties in consistently meeting regulatory standards. 

Metalcess’ self-developed new fluoride removal agent with porous hydroxyl composite carrier(doped with active components) can stably reduce the fluoride concentration in raw water from 50~500mg/L to below 1mg/L, with a treatment efficiency over 30% higher than that of traditional adsorbents.          

Key Advantages: 

High fluoride removal capacity and resistance to interference

Metalcess’ fluoride removal agent achieves a fluoride adsorption capacity of 8.5–12mg/g in weakly acidic systems, with fluoride ion content in the treated water below 1mg/L. Under conditions where Cl⁻/SO₄²⁻≤5000mg/L and Cu²⁺/Zn²⁺/Ni²⁺≤50mg/L, fluoride removal efficiency remains unaffected, ensuring long-term, stable compliance with standards. 

Innovative Fluoride Removal and Regeneration Technology 

Our fluoride removal agent firmly locks fluoride ions within the carrier, preventing secondary desorption after adsorption. Following filtration, fluoride ions are completely separated from the solution, with the filter cake moisture content below 60%, thereby reducing the volume of solid waste requiring disposal. The fluoride-loaded fluoride removal agent is capable of regeneration. Even after dozens of cycles, the adsorption capacity remains at over 75% of its initial value, significantly reducing chemical consumption. The process flow is simple, compact and easily integrated into existing processes. 

Ease of Operation and Process Compatibility 

Metalcess’ fluoride removal agent is white powder that can be added directly without activation. Following addition, it is stirred in existing reaction tanks; operators can be trained to operate the system within 1-2 hours. Suitable for new plant or existing plant process improvement (e.g., upgrades from lime precipitation or conventional adsorption processes), the retrofit period is 7-15 days, with minimal impact on production.

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