ReSoWas – Adapted control and remote monitoring of decentralized, solar-powered drinking water treatment plants (2014 – 2018).
For many decentralized areas, in addition to the scarcity of clean drinking water, a lack of infrastructure and thus a lack of energy sources is characteristic. About 2 billion people have neither electricity nor access to clean drinking water. This is where the use of solar energy to operate water treatment plants and desalination systems comes in handy. What is needed is an energy-autonomous, robust and, if possible, maintenance-free process that ideally covers the entire production chain from raw water extraction and purification to disinfection and distribution. SolarSpring GmbH (SSP) systems used for this purpose are essentially solar thermal driven membrane distillation (seawater desalination), ultrafiltration (freshwater treatment) and UV disinfection (sterilization), with the electricity required for operation being provided by photovoltaics. Typical system sizes vary from 150 l to 20 m³ of drinking water per day, although larger overall systems can also be produced thanks to a modular design.
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