Different validation stages address material feasibility, continuous operating stability, and engineering-scale boundaries respectively.
Bench-scale testing
Used to quickly determine whether separation, concentration, or conversion is feasible, and to screen membrane materials, pretreatment, and analytical methods.
Pilot-scale testing
Used to observe continuous operation, water quality fluctuations, fouling and cleaning, energy consumption, and control strategies, providing data for equipment scale-up.
Engineering scale-up
- Determine membrane area and equipment quantity based on mass balance and continuous data.
- Consider pumps, valves, instruments, automation, materials, and redundancy at the same time.
- Define performance acceptance conditions and operation and maintenance boundaries.