With the rapid development of the photovoltaic industry in recent years, a large amount of fluoride-containing wastewater has been generated during the production of silicon solar panels. The water quality of this wastewater is characterized by strong acidity and alkalinity, high fluoride ion concentrations, and poor biodegradability, making fluoride removal challenging. The stricter discharge standards for fluoride further complicate the removal process. Among the various methods, adsorption is a commonly used process for deep fluoride removal in the photovoltaic industry. Below are the characteristics and advantages of the HaiPu photovoltaic wastewater fluoride removal product.
HaiPu Photovoltaic Wastewater Fluoride Removal Advantages:
- Low-Concentration Fluoride Wastewater Deep Treatment: Strict control of effluent ion content, with fluoride concentration in the effluent <1 mg/L, allowing for direct discharge.
- High-Concentration Fluoride Wastewater Adsorption: High efficiency in fluoride removal with a high concentration ratio, ensuring the effluent meets production requirements and can be reused in production.
- Low Investment and Operating Costs: Mature, leading technology with low operational expenses.
- High Automation: Simple operation with high automation.
HaiPu Fluoride Removal Resin Adsorption Principle: The HaiPu HP3500 high-selectivity fluoride removal adsorbent is a hybrid rare-earth nano-material-based porous polymer. The process uses the Donnan membrane effect, where surface groups of the polymer material pre-concentrate fluoride ions, which are then removed by the fluoride removal nano-materials inside the polymer. This results in high selectivity and precision in fluoride ion adsorption.
The HPF3500 polymer has abundant nanopores and excellent hydraulic diffusion performance, ensuring fast adsorption rates and high activity. The polymer chain in the adsorbent has a high affinity for the nano-particles, ensuring good mechanical strength and stability.
Key Features of Fluoride Removal Adsorbent:
- High selectivity for fluoride ions with minimal interference from other coexisting anions.
- Saturation adsorption capacity for fluoride ions ≥ 13.0 g/L (adsorbent).
- Effluent fluoride ion concentration is reduced to below 1 mg/L after adsorption.
Photovoltaic wastewater defluorination
