In the Oxidant reactor, a DBD generates a plasma using air as the carrier gas. Before treatment, the carrier gas and the sample liquid are mixed and then nebulized. The resulting reaction products include ozone, which can be used for the treatment of raw water. Hereby, a treatment of river water is possible, which can subsequently be used as a coolant in the industry. A treatment of cyanotoxins has already been successfully carried out.
All the directly application relevant operating parameters of the prototype are known.
Inactivation of microorganisms or surface functionalization of objects with variations in form and size by means of a cold plasma process.
The gas pressure is an effective parameter to control plasma-chemical reactions, but its adjustment often requires substantial effort. In the Venturi-DBD (VDBD), the pressure can be set to any value between 100 mbar and 1000 mbar reliably and reproducibly. Using a Venturi pump for vacuum generation ensures that the system is affordable and almost maintenance-free. With air as process gas, the output gas composition can seamlessly be adjusted from a strongly ozone-dominated regime to a nitrogen oxides-only-regime including nitric oxide.
Due to its high degree of flexibility, the microwave plasma source MiniMIP is suitable for various different applications and experiments. The plasma can be ignited in both pure argon and pure helium, and furthermore, an admixture of molecular gases to can be used to provide an optimal matching of the process chemistry to the requirements of the specific application.
The non-thermal atmospheric pressure plasma jet (ntAPPJ) is composed of a quartz capillary with an inner diameter of 4 mm and an outer diameter of 6 mm. The plasma jet operates at a high frequency of 27.12 MHz in pure noble gases (helium, neon, argon, krypton) at flow rates between 0.1 and 2 slm. Small molecular gas admixtures or organic vapors can be added to the carrier gas. Two outer ring electrodes (width 5 mm, distance 5 mm) are adjusted concentrically with the capillary axis.