公开(公告)号：US11181513B2

公开(公告)日：2021-11-23

申请号：US16026504

申请日：2018-07-03

申请人： The Board of Regents for Oklahoma State University

发明人： Charles E. Konemann ,  Bradford M. Kard

IPC分类号： C12M1/107 ,  C12M1/00 ,  C05F17/90 ,  C05F11/04 ,  F17B1/00 ,  F17B1/02 ,  G01N33/00 ,  C02F11/04 ,  A01M31/00

摘要： There is provided a biogas flux chamber constructed in one embodiment from a metal can with an open bottom and an epoxy interior coating. The chamber is inserted into the soil to allow influx of soil gases. The lid includes a sampling septum and a vent tube to prevent pressure build-up when the lid is in place which allows for an increase in interior gas concentrations. The rubber sampling septum is installed in a hole in the lid. The vent tube is constructed using flexible copper tubing inserted through the lid and secured using a bulkhead-fitting, and rubber O-ring to seal the insertion hole. The copper tubing is bent to form a double-curved ‘C’ shape which positions the open ends of the tube above and below the lid surfaces.