Study on Characteristics of Activated Sludge at Low Temperature

Sheng Shu Ai; Xue Hua Zhang; Yan Bo Xiao; Xi Tian; De Jun Bian

doi:10.4028/www.scientific.net/AMM.675-677.574

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Study on Characteristics of Activated Sludge at Low Temperature
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 675-677Study on Characteristics of Activated Sludge at...

Study on Characteristics of Activated Sludge at Low Temperature

Abstract:

The change rule of characteristics of activated sludge in urban sewage treatment by activated sludge process were investigated at low temperature of 15°C~3°C.The results showed that with the temperature decreased, average particle size and dehydrogenase activity showed a trend of decrease; sludge settlement ratio and sludge volume index and sludge extracellular polymeric substance showed a trend of increase.