Water-treatment technology for supplying electrolysis plants
“Green” hydrogen is produced by electrolysis, a process that requires ultrapure water. Ultrapure water is treated in several process stages. An important process for maintaining consistently high-quality water is recirculation purification (photo). In the so-called refinement loop, the water is repeatedly purified by a polishing system. Circulation purification is either integrated directly into the feed-water-treatment system or is added as a stand-alone unit to an existing process water-treatment system. The feed-water treatment, as well as the circulation purification, can be modularly constructed for individual system integration into the overall electrolysis concept. Water sources such as sea, river, surface or waste water, can be used for feed-water treatment. Hall 4.1, Stand D49 — EnviroFALK GmbH, Westerburg, Germany