Last time we met this heat exchanger tower, it was on its side in a workshop in Poland. At the weekend, it was pictured in northern France, in brilliant sunlight, being lifted into place. Ultimately, it will be one of four towers in this heat exchanger. Once commissioned, they will together form part of a circular economy solution for the thermal treatment of minerals enabled by the Torftech Technology, calcining waste clay to produce a low carbon cement substitute
