O.M. Meissl Technology is located in Spielberg, Austria and develops, constructs and distributes innovative, decentralised water and wastewater treatment solutions based on boron-doped diamond electrodes (BDDs). BDD electrodes are currently the most investigated material for wastewater treatment worldwide. Its high thermal conductivity, high hardness, chemical inertness, and high oxidation window stands out compared to other electrode materials and therefore makes it perfect for COD degradation and disinfection of aqueous media - without any chemicals! DAREIOS® is a containerised, chemical-free wastewater treatment system that combines anodic oxidation and filtration/adsorption. It enables the treatment of persistent- and non-biodegradable wastewaters for reuse. DAREIOS® DDU is a compact system that generates sodium hypochlorite for water disinfection purposes. Different types and sizes allow us to cater to different client needs.