The plant is also equipped with an air/water exchanger that is capable of recovering the heat contained in the fumes to pre-heat the water in the pre-treatment baths and to heat the plant during the winter. Thanks to the technical solution deployed, it has also been possible to reduce the plant’s CO2 emissions, which are now lower than they would have been if a traditional regenerative thermal oxidiser had been used, without additional heat recovery. The functionality of the system is dependent on the use of high-efficiency ceramic honeycomb material to accumulate the thermal energy of the purified air as it leaves the combustion chamber, in order to then recycle that heat, during the subsequent phase, within the polluted current entering the unit. The presence of 3 chambers ensures maximum treatment efficiency at all times, even during the transient phase in which the flows are inverted. The combined use of the oxidiser has enabled the company to achieve its energy-saving objectives. In this regard, we have focused in particular on the decontamination of the buildings, and to this end the asbestos roofs of the production facilities have been completely removed.