Cover for a liquid manure container used in biogas installations has an elastic film for variable biogas storage with no addition lower or upper structure for the film roof for protection against the weather

摘要

Cover for a liquid manure container has an elastic film for variable biogas storage with no addition lower or upper structure for the film roof for protection against the weather. Preferred Features: The gas amount is controlled in such a way that the film never drops below a lowest possible fold-free curve necessary for the run-off of rainwater. An elastic tubing is connected to the film over the film roof.