Brine elimination pilot progresses

At the Port of Rotterdam, one of the largest petrochemical clusters in Europe, the Zero Brine project – coordinated by Delft University of Technology (TU Delft) – has launched its second site as part of its demonstration of industrial circularity combining residual heat and wastewater streams to eliminate brine effluent in the production of demineralised water.

Demineralised water is an essential commodity required for the many industrial processing facilities in the port. This water is provided by the Evides Demineralised Water Plant (DWP) – one of the largest demineralised water production facilities in Europe

While the Site I pilot has treated the spent regenerant solution of the IEX unit to recover high purity calcium, magnesium, salt, and clean water, Site II will aim to use an innovative design to treat the reverse osmosis (RO) concentrate of the DWP using a combination of new and existing technologies to recover sulphate salts, sodium bicarbonate, regeneration solution (NaCl rich stream), and clean water.

The Pilot Site II technologies are provided by project consortium members including UK-headquartered water treatment company Arvia (TOC removal), Dutch water treatment company Lenntech (nanofiltration and RO), the Delft University of Technology (Eutectic Freeze Crystallizer), and the National Technical University of Athens (evaporator).

The project is facilitating the implementation of the EU Circular Economy package and the Sustainable Process Industry through Resource and Energy Efficiency (SPIRE) Roadmap in various process industries by developing the necessary concepts, technological solutions and business models to redesign the value and supply chains of minerals and water while dealing with present organic compounds in a way that allows their subsequent recovery.

According to its coordinators, the project sets a precedent for industrial circularity and a new generation of innovative, resource-efficient European business. It is financed by the European Commission.