Ultrapure water system for testing PEM stacks

Project requirements

A compact and powerful ultrapure water solution was required for testing PEM electrolysis stacks, which would operate reliably around the clock. The requirements included very high water quality, a space-saving containerised design, short implementation times and stable operation to meet a variety of testing requirements. At the same time, water and energy were to be used as efficiently as possible.

Herco solution

A custom-designed ultrapure water system has been developed within a 40-foot high-cube container, combining high water quality with a compact design. The system is designed for reliable 24/7 operation, features a maintenance-friendly design and, due to its efficient configuration, promotes the resource-efficient use of water and energy.

Plant engineering

The unit combines proven processing steps into a compact integrated system that ensures high purity, stable operating conditions and easy access for maintenance within a containerised structure.

• 40-foot high-cube container
• Dual water softener system
• Two reverse osmosis stages
• Electrodeionisation
• Membrane degasser
• Polisher
• Hardness tester
• Fine filter
• Ultrapure water tank made of polypropylene
• UV system for TOC oxidation
• IR-welded piping