Waste Sorting Plant
From Captain of Industry Wiki
Recycling can transform your island's economy in a significant way as it allows to recover a portion of raw materials from various sources like settlement, maintenance, or research. Recycling reduces the need for raw minerals extraction and thus also extends longevity of deposits. Places that support recycling will return 'Recyclables'. This product can be separated via waste sorting plant into scraps (such as iron or copper scraps) which can be sent to any furnace for smelting. The ratio of materials recycled is based on 'Recycling efficiency' and more about that is explained in the waste sorting plant.