Ultrapure water system for a 5 MW PEM electrolyser system

Project requirements

A compact, customised water treatment system was required for a containerised PEM electrolyser. The solution had to ensure a consistently high standard of purified water, support continuous plant operation and be integrated into a sophisticated, space-optimised system design. At the same time, a reliable and robust design was required for continuous industrial use.

Herco solution

A customised pure water solution has been developed for a containerised PEM electrolyser. The system combines a compact design with reliable water treatment technology and is designed for continuous operation. This ensures that the required water quality is maintained at all times and supports the stable operation of the entire system.

Plant engineering

The plant has been designed in a compact, customised configuration to ensure consistent pure water quality and safe, continuous operation. It utilises a carefully coordinated combination of centralised treatment technologies.

• System separator in accordance with DIN 1988-100 and fine filter with automatic backflushing
• Dual water softener system
• Water hardness monitoring
• Reverse osmosis
• Membrane degassing
• Electrodeionisation
• Design in PP
• Performance 1500 l/h