MULTISTEP: MULTI-TALENTED

The multistep system, which has also been patented for Lewatit® , is an innovative, highly variable process that boasts many economic and ecological advantages. Its main asset is that many kinds of demineralization can be performed in one single unit. The column can be filled simultaneously with several ion exchange resins for different functions.

Furthermore, these different resins can be regenerated with their own particular chemical regenerants (e.g. hydrochloric acid and caustic soda solution) without any cross-contamination occurring.

Other key benefits include: low investment costs, small space requirement, lower regenerant demand than with mixed-bed units, exhausted components that can be regenerated separately, a system that is insensitive to load fluctuations or ionic changes of the influent water, and easy automation of the unit. In many cases, the multistep process is an extremely efficient alternative to the mixed bed technology.