Abstract: The invention relates to a process for production of biogas from a biodegradable substrate under anaerobic conditions, comprising the steps of introducing the substrate into a reaction space, the addition of a lime-based material having a particle diameter (d97) of less than 90 ?m and/or (d50) of less than 10 ?m to the substrate, and the biodegradation of the substrate to form biogas.

Abstract: The invention relates to a process for production of biogas from a biodegradable substrate under anaerobic conditions, comprising the steps of introducing the substrate into a reaction space, the addition of a lime-based material having a particle diameter (d97) of less than 90 ?m and/or (d50) of less than 10 ?m to the substrate, and the biodegradation of the substrate to form biogas.

Abstract: The invention relates to a self-propelled water vehicle for introducing alkaline materials into bodies of water. The invention is characterized in that the water vehicle has at least one supply container for alkaline materials, at least one intake device for water from the body of water, at least one metering device for producing a suspension, and at least one delivery pump and at least one distributor nozzle, connected to the least one delivery pump, for spraying the suspension onto the water surface, the water vehicle being dimensioned with regard to dimensions and empty weight such that it can be transported overland to the respective usage location thereof using a transport vehicle.

Abstract: The invention relates to a self-propelled water vehicle (1) for introducing alkaline materials into bodies of water. The invention is characterized in that the water vehicle (1) has at least one supply container (2) for alkaline materials, at least one intake device (3) for water from the body of water, at least one metering device (4) for producing a suspension, and at least one delivery pump (5) and at least one distributor nozzle (6a, b), connected to the least one delivery pump (5), for spraying the suspension onto the water surface, the water vehicle (1) being dimensioned with regard to dimensions and empty weight such that it can be transported overland to the respective usage location thereof using a transport vehicle (7).