Product Introduction

Photovoltaic-Specific Defluoridation Agent is a composite chemical coagulant and precipitant specially designed for treating fluoride-containing wastewater in the photovoltaic industry. Through mechanisms such as high-efficiency adsorption, ion exchange, and co-precipitation, it rapidly reacts with fluoride ions in wastewater to form insoluble precipitates, effectively reducing fluoride concentrations to below national discharge limits—typically ≤1 mg/L—and often even lower (e.g., ≤0.5 mg/L or ≤0.2 mg/L).

This product is highly effective for treating challenging fluoride-laden streams commonly found in the photovoltaic sector, including wafer slicing wastewater, hydrofluoric acid (HF) cleaning effluents, and electronic etching wastewater. It offers outstanding performance characterized by high efficiency, operational stability, and ease of use.

Product Advantages

High-Efficiency Fluoride Removal:Achieves a removal efficiency of over 98%, consistently reducing fluoride concentrations in wastewater to below 0.5 mg/L—and even as low as 0.2 mg/L in some cases. The reaction is rapid, typically completing within 2–5 minutes to form dense, settleable precipitates.

Broad Adaptability:Operates effectively across a wide pH range (pH 2–12), with optimal defluoridation performance at pH 6–8—aligning well with standard discharge requirements. It is suitable for treating both low-concentration (≤20 mg/L) and high-concentration fluoride-containing wastewaters, including complex and challenging streams commonly encountered in industrial applications.

Simple Operation:The process is straightforward—simply dose the agent directly into the chemical coagulation stage or at the inlet of the sedimentation/flocculation tank, followed by addition of a coagulant aid (e.g., PAM) for sedimentation or dissolved air flotation (DAF). No complex system adjustments are required; results are immediate upon dosing, significantly reducing operational complexity and labor costs.

Multifunctionality:In addition to fluoride removal, the agent simultaneously reduces COD, color, total phosphorus, suspended solids (SS), and heavy metal ions, offering a "one-agent-multiple-benefits" solution. It also generates less sludge, and the resulting sludge contains lower levels of fluorides, thereby simplifying sludge handling and lowering disposal costs.

Service Industries

Photovoltaic Wafer Slicing Wastewater: Treats hydrofluoric acid (HF) cleaning effluents to effectively reduce fluoride concentrations.

Electronic Etching Wastewater: Treats fluoride-containing developer solutions, enabling deep defluoridation.

Fluorochemical Industry Wastewater: Used for advanced treatment of wastewater generated after organic fluorine conversion processes.

Other Industries: Applicable to fluoride removal in wastewater from coal-fired power plants, coking plants, stainless steel polishing, rare earth processing, metallurgy, mining, aluminum and aluminum product surface treatment, semiconductor and display panel manufacturing, phosphate fertilizer production, and other sectors requiring efficient defluoridation.