Expansion project of the KEBAG ENOVA waste recycling and incineration facility in Zuchwil, Switzerland.
The goal of the new plant is to achieve 15% higher energy efficiency, i.e. with the same amount of waste, more electricity and more district heating will be produced, namely approximately 145 GWh of electricity and 120 GWh of district heating per year. While the existing plant has four combustion lines, only two larger furnace lines are planned for the new plant. Thanks to this, the system is also supposed to be more energy efficient.
The waste contains a large amount of valuable metals that can be returned to the cycle of raw materials. At KEBAG Enova, the recovery of metals from residues such as slag and fly ash is expanding, especially the recovery of zinc. Waste recycling facilities produce many pollutants such as nitrogen oxides, sulfur dioxide or carbon monoxide. A multi-stage flue gas cleaning system and fabric filter ensure that virtually no pollutants are released into the environment. At KEBAG Enova, the already very low emissions of air pollutants will be significantly reduced again. The cost of the new plant is almost 500 million Swiss francs. The aim is to finance approximately one third of the costs from own resources. KEBAG has been preparing for this for years.
