Photovoltaic Manufacturer Fluoride Removal Project – 200 m³/h Defluorination System Delivering F < 1 ppm
August 26, 2026
Project Overview
Our client is a leading photovoltaic (PV) manufacturer specializing in solar cell and module production. During the manufacturing process — particularly in wafer texturing, etching and cleaning — the plant generates a continuous stream of fluoride-containing wastewater that requires reliable, high-performance treatment before discharge.
To meet tightening environmental regulations and support the company’s sustainable production goals, our team designed, supplied and commissioned a complete fluoride removal (defluorination) wastewater treatment system with a processing capacity of 200 m³/h.
Customer Challenge
The client faced three key challenges:
- High fluoride load: The raw wastewater contained fluoride at approximately 8 ppm (mg/L), exceeding local discharge limits by a wide margin.
- Strict discharge requirement: The treated effluent had to achieve a fluoride concentration below 1 ppm (F < 1 ppm) — a stringent target that demands precise chemical dosing and stable process control.
- Continuous operation: As a 24/7 production facility, the wastewater treatment plant had to run reliably with minimal downtime and low operator intervention.
Our Solution
We delivered a turnkey defluorination system built around a proven chemical precipitation and coagulation-flocculation process, followed by efficient solid-liquid separation:
- Automatic chemical dosing: Precise dosing of calcium-based precipitants and coagulants, controlled by inline pH and fluoride analyzers.
- Reaction & flocculation: Multi-stage mixing and flocculation tanks optimized for complete precipitate formation and floc growth.
- Clarification & filtration: High-efficiency lamella clarifier and final filtration to guarantee consistent effluent quality.
- Sludge handling: Automatic sludge dewatering to minimize waste volume and simplify disposal.
- Intelligent control: Fully automated PLC system with remote monitoring, alarm management and data logging.
Key Project Parameters
| Parameter | Value |
|---|---|
| Industry | Photovoltaic (solar cell manufacturing) |
| Treatment capacity | 200 m³/h |
| Influent fluoride concentration | 8 ppm (mg/L) |
| Effluent requirement | F < 1 ppm (mg/L) |
| Treatment process | Chemical precipitation + coagulation-flocculation + clarification |
| Control system | Fully automatic PLC with remote monitoring |
Results & Benefits
Since commissioning, the system has delivered outstanding performance:
- Compliant effluent: Fluoride concentration consistently below 1 ppm, fully meeting the discharge requirement.
- Stable operation: Continuous 24/7 performance with automatic control, greatly reducing manual workload.
- Cost efficiency: Optimized chemical dosing lowers operating costs while maintaining treatment quality.
- Environmental compliance: The client passed all regulatory inspections with confidence, reinforcing its green manufacturing image.
- Scalable design: Modular system architecture allows easy capacity expansion as production grows.
Why Partner With Us
This project demonstrates our expertise in industrial wastewater treatment for the photovoltaic industry. From process design and equipment supply to installation, commissioning and after-sales support, we provide a one-stop solution tailored to each client’s water profile and discharge standards.
If your facility faces similar fluoride removal challenges, contact us today for a customized treatment solution.