Introduction:
In titanium dioxide manufacturing plants, the recovery of titanium dioxide from “white water” presents significant challenges due to the fine particle size, high temperature, and high suspended solids concentration. The application of PolyCera Hydro 100 ultrafiltration (UF) membrane offers a groundbreaking solution for efficiently filtering and concentrating “white water” to recycle titanium dioxide and produced water for recycling.
Background:
“White water” in titanium dioxide manufacturing plants contains titanium dioxide particles ranging from 0.2 to 0.4 microns, with suspended solids concentrations between 0.2% and 0.5%. The temperature of the inlet water ranges from 50 to 70°C, posing challenges for conventional filtration methods.
Process Flow:
The treatment process is illustrated in the following process flow diagrams:
Results:
Test results demonstrate the effectiveness of PolyCera Hydro UF membrane in concentrating titanium dioxide from “white water”:
- Solid content in both UF feed and UF concentrated and UF filtrate turbidity results indicate successful concentration of titanium dioxide particles by PolyCera UF membrane.
- It maintains a stable flux of 40-60 LMH under low pressure (<1.5 bar) and high temperatures (50-70°C).
- The membrane effectively concentrates titanium dioxide in “white water,” with good recovery rates during backwashing cycles.
Value Proposition:
The utilization of PolyCera Hydro UF membrane in titanium dioxide recovery offers several key advantages:
- Solving High-Temperature Challenges: The membrane effectively handles high-temperature conditions without compromising performance or causing fouling, ensuring efficient titanium dioxide recovery.
- Fine Particle Size Filtration: The membrane’s high filtration precision enables the capture of fine titanium dioxide particles, enhancing recovery efficiency.
- Low Membrane Fouling: PolyCera Hydro membrane operation minimizes membrane fouling, ensuring sustainable and environmentally friendly titanium dioxide recovery.
- Flux Recovery Ability: The membrane system demonstrates excellent flux recovery capability, maintaining consistent performance over time and reducing maintenance requirements.
- High-Quality Produced Water: The produced water exhibits excellent quality, meeting stringent discharge and recycling standards and reducing the need for additional treatment steps.
Conclusion:
The application of PolyCera Hydro UF membrane revolutionizes the recovery of titanium dioxide from “white water” in titanium dioxide manufacturing plants. By effectively handling high temperatures, fine particle sizes, and high suspended solids concentrations, the membrane offers a sustainable and efficient solution for titanium dioxide recovery while producing high-quality water for recycling purpose.
Keywords
Titanium dioxide recovery, White water, PolyCera Hydro ultrafiltration membrane, High temperature filtration, Fine particle filtration, Sustainable operation.