CWS-500
Industrial electrochemical system for generating disinfecting active substances (free chlorine, Cl₂ / HOCl mixture)
CWS-500 is a high-capacity, diaphragm-membrane, recirculating electrolysis system that produces large quantities of stable free chlorine active substance from drinking water and common salt. The goal of the technology is to provide 18–20 times higher active substance production compared with the current OXI-SYS® systems. This makes it suitable for high-water-volume systems, such as 2,000–5,000 m³ swimming pools, for continuous disinfection.
- ✅ Industrial electrolysis with diaphragm membrane – with separation of anolyte and catholyte
- ✅ Recirculating design – longer residence time, higher efficiency
- ✅ 500 g/h free chlorine – industrial active substance capacity
- ✅ Siemens PLC control – continuous measurement and operational monitoring
Operating principle – industrial recirculating free chlorine generation
CWS-500 is a diaphragm-membrane, recirculating cell system in which a saturated sodium chloride solution (NaCl) circulates through separated anode and cathode chambers. In the anode chamber, a high-concentration free chlorine active substance is produced, while alkaline catholyte and hydrogen gas are generated in the cathode chamber.
The system uses internal recirculation on both sides, with cooled and stabilized operating conditions. The longer residence time and controlled temperature enable the production of approx. 500,000 mg/h (500 g/h) free chlorine active substance.
Technical data
| Technology | Diaphragm-membrane electrolysis, recirculating design |
|---|---|
| Active substance capacity | approx. 500,000 mg/h (500 g/h) free chlorine |
| Control | Industrial Siemens PLC control |
| Operating mode | Recirculating system with cooled and stabilized operating conditions |
| Input solution | NaCl brine solution (pure salt without additives, softened water) |
| Generated active substance | Free chlorine active substance, OXI-SYS® compatible |
| Electrical supply | Industrial power supply, three-phase |
| Materials | Membrane: industrial ion-exchange membrane; housing: corrosion-resistant materials |
| Protection functions | Gas management (hydrogen, anode gas), operational monitoring, level and flow protection |
Development consortium
- EUT Eilenburg (DE) – development and manufacturing of industrial electrolysis cells
- Sommer Energy (DE) – Siemens control, machine construction, industrial integration
- Schwung Energy (HU) – system development, testing, IT architecture, documentation
Development status: CWS-500 is currently an industrial system under development. The prototype met the theoretical and practical expectations defined by Prof. Dr. D. Deininger and confirmed the correctness of the technological model.
Expected first machine deliveries: Q2 2027