Biomass is collected and processed for biogas. The conveyors must handle highly uneven input. There are a wide range of materials with differing levels of humidity and size. The conveyors, especially elevators, need to contain spillage as much as possible and clean up effectively to prevent mechanical damage and reduce odours that would pollute the working environment. An additional problem is to control belt slippage resulting from the inevitable ingress of some material and humidity under the belt. SuperDrive™ has been selected as an ideal solution here, replacing modular belts that allow material to seep through and which retain rotting matter inside the joints. This solution contains the conveyed product, is not affected by humid matter and cleans quickly.