At REDstack’s location in the Netherlands, green energy is generated from fresh and salt water. This is done with RED technology, which stands for Reverse Electro Dialysis. This process occurs at places where rivers flow into the sea. The fresh water from the Lake IJsselmeer flows together with the saline seawater through a membrane stack, the so-called RED stack. When fresh and salt water meet each other, electrical energy is generated in the REDstack.

Logisticon Water Treatment was asked to design and build two pre-treatment installations to achieve a good pre-treatment of the water preventing contamination of the system. The design consists of two installations, each containing an influent buffer, four media filters Ø2500 mm, a clean water buffer, a waste water buffer and a 10 ft control container for the pumps, blower and control box.

The design has been realized for the fresh and salt water flow. The pre-treatment can process 100 m3/h fresh water and 100 m3/h salt water. With the pre-treatment step, the water in the multi-media filters is filtered, which means that the membranes of REDstack have less fouling to endure.

Each unit has its own control unit and can communicate with the central control system of REDstack aswell as remote communication, so technical and operational support can be provided from the service department of Logisticon Water Treatment.