Characterisation of Excess Sludge Reduction in an Anoxic + Oxic-Settling-Anaerobic Activated Sludge Process
A+OSA活性污泥工艺剩余污泥减量特性研究

An energy balance analysis method with auto calorimeter being adopted was introduced to determine calorific values of sludge samples in influent and effluent of uncoupling tank in an anoxic(A) + oxic-settling-anaerobic(OSA) process and a reference system.The affiliation of sludge amount change and its energy content were studied,as well as potential of excess sludge reduction was evaluated through modifying performance of uncoupling tank.The characteristics and causes of sludge reduction in OSA system were ...