| 摘要 |
<p>A digester (1) for production of biogas in a dung pit (2) containing biological material, wherein the digester (1) comprises a dung pit (2) containing biological material, which dung pit (2) comprises a bottom (5), wherein the digester (1) further comprises a roof (3) covering the dung pit (2) and at least one insulating element (4, 4), which is placed on the bottom (5) of the dung pit (2) and at least partly insulates the bottom (5) of the dung pit (2). A method for production of biogas in a dung pit containing biological material, wherein said dung pit comprises a bottom and is provided with a roof covering the dung pit and at least one insulating element, which is placed on the bottom of the dung pit and at least partly insulates the bottom of the dung pit, wherein the method comprises collecting produced biogas at the roof covering the dung pit. A method for converting a dung pit containing biological material to a digester for production of biogas, wherein the dung pit comprises a bottom, and wherein the method comprises immersion of at least one insulating element into the dung pit, placement of said at least one insulating element on the bottom of the dung pit and covering of the dung pit with a roof.</p> |
