Case Studies

Pfeifer & Langen, a major German sugar manufacturer, uses Polilyte Plus pH sensors to monitor carbonatation in their plant in Jülich, Germany.

GEA, a global equipment and process technology provider, integrates Arc sensor technology in fermentation plants at their GEA Diessel subsidiary in Hildesheim, Germany.

Fujisaki Company, a Japanese equipment and process technology provider, integrated optical dissolved oxygen sensor technology in their water de-aeration units.

PureBlue, a supplier of biological sewage treatment plants based in the Netherlands, integrates optical dissolved oxygen sensor technology with a long shaft length into their moving bed bioreactor to constantly monitor the DO content via the direct 4-20 mA output signal.

The Karlsruhe Institute of Technology (KIT), one of the leading universities for engineering and the natural sciences in Europe, uses the digital communication protocol provided by Arc sensors to optimize yield and improve growth conditions of their algae cultivations.

Albumedix, a technology developer in albumin-based products in Nottingham, UK, has integrated the 4-20 mA signal VisiFerm DO provides into their existing controllers to achive reduced downtimes and higher efficiency.

TMO, a former cellulosic biofuel pioneer in UK, used optical dissolved oxygen sensor VisiFerm DO in the thermophilic biofuel fermentation.

Medichem, an API and Finished Dosage Form developer and manufacturer, uses optical dissolved oxygen sensors to monitor and control DO levels in their laboratory and pilot scale bioreactors in a hazardous environment requiring ATEX certification.

The University of Applied Science in Hamburg, Germany tested the suitability of the EasyFerm Bio and its reference electrolyte Foodlyte in E.Coli fermentation processes to demonstrate the biocompatibility of it.

The effects of different humidities and pressures on DO measurement in the gas phase are explained and methods for their compensation described.

Isobionics, a provider of flavors and fragrances, developed a mocrobial fermentation process to produce terpenoids on a consistent and reliable way in their R&D facility in Geleen, Netherlands.

In this application note, the utilization of a DCO2-probe in addition to a DO-probe at Ostwestfalen-Lippe University of Applied Sciences and Arts, is briefly described using cell cultivation with varying stirring speeds to demonstrate the value added of inline dissolved gas measurement.