| 摘要 |
<p>PURPOSE:To simplify fabrication or maintenance, by bringing a gas holder into communication with a gas generation tank, constituted so that a solid outside casing, a heat insulating member and a flexible inside container are fabricable, through piping provided with a check valve and a pressure regulator. CONSTITUTION:Sewage in a sewage tank 24 is sent into a gas generation tank 28 through piping 26 and heated to about 20-60 deg.C by a heating hot water supply pipe 60. Further, the sewage is stirred by stirring gas supplied from a gas supply pipe 58 branched from piping 32 by a blower 59 and methane gas is generated in the upper part of the gas generation tank 28. This methane gas is supplied to a gas holder 38 through a gas feed pipe 62 to fill the same and appropriately taken out from an emitting pipe 66. In entirely discharging sewage remaining in the gas generation tank 28, a drain pipe 64 is opened to discharge sewage to the outside.</p> |
