The system developed by AUTARCON enables the safe reuse of treated wastewater. By producing chlorine on-site from sodium chloride (NaCl) and dosing it as needed, waterborne pathogens are effectively eliminated. The system is particularly well-suited for rural regions in the Mediterranean that suffer from water scarcity and require low-maintenance solutions for wastewater treatment and reuse.
AUTARCON’s systems operate using solar power and are almost entirely self-sufficient – the only manual intervention required is the refilling of sodium chloride (NaCl). On-site, a chlorine stock solution is generated via electrolysis and dosed into the treated water proportionally to the flow and depending on the water’s chlorine demand. The regular production of fresh chlorine solution prevents long-term storage, which can lead to chlorine degradation and the formation of undesirable inorganic disinfection by-products.
When combined with nature-based treatment methods – such as constructed wetlands or retention soil filters – the required chlorine dosage can be significantly reduced. Due to the high treatment performance of these systems, especially the nearly complete oxidation of ammonium and the very low TOC concentrations, chlorine dosing can be reduced by up to 80% compared to the doses commonly applied in water reuse systems in Spain. The system can also be integrated with other wastewater treatment technologies as needed.
Integrated sensors and continuous data monitoring allow for reliable online supervision of system performance. Critical operating conditions are detected and reported in real time.
Key advantages at a glance:
- Solar-powered, autonomous, and location-independent operation
- No additional chemicals required – only NaCl is used
- Effective elimination of waterborne pathogens
- Safe reuse of treated wastewater
- Compliance with Quality Class A according to EU Regulation 2020/741
- Very low formation of disinfection by-products
- Micropollutant reduction
- Remote monitoring and online data tracking
- Mobile
