The Cascada BIO-water System incorporates an ultrafiltration device with a low molecular weight cut off. Its role is to remove bacteria and endotoxins. TOC and resistivity were recorded to determine the time necessary for the unit to rinse up.

Both units were within specification after 4 hours.

Figure 1
BIO-Water System Rinse Up After UF Changed

Figure 2
BIO-Water System Rinse Up After 2nd Sanitization

The Cascada BIO-water System was fed with Reverse Osmosis (RO) permeate and a TOC analyzer (Anatel A100P) was connected to record TOC and resistivity values. After the ultrafiltration device was changed, the unit was left to recirculate with the analyzer connected.