自动保持消化池低压状态的措施探讨  

Study on Automatic Pressure Control in Sludge Digester

作　　者：高远 郭立志 

机构地区：[1]西安市污水处理厂,710077

出　　处：《给水排水》2002年第4期75-77,共3页Water & Wastewater Engineering

摘　　要：混凝土结构的污泥消化池在使用中池体严重泄漏沼气 ,其原因是水泥凝结时形成的毛细孔孔径远大于甲烷分子直径所致。这说明单用混凝土材料建池密封效果差。同时提出在旧池难于修补的情况下 ,采用自动控制消化池沼气低压状态的方法 ,可减少池体的漏气机会。在运行过程中效果较好。Methane leakage is observed eventually on sludge digester of concrete structure, because the aperture of the porous formed in the cement condensation is bigger than the diameter of the methane molecule. This means that the airtight of the raw concrete material is poor. In case when the existing tank is difficult to repair, holding low level of methane pressure inside the digester by automatic controller will be the best way to avoid the risk of gas leakage of the tank body. This measures has been applied with good results.

关 键 词：污泥消化池 沼气泄漏 自动低压抽排气 混凝土结构 

分 类 号：X505[环境科学与工程—环境工程]