2006•Journal of China University of Mining and TechnologyRequires access

Research on the Relation of the Specific Exogenous Respiration Rate and Substrate-Loading of Activated Sludge

Xuwen He, Yuncheng Yang, Yinghao Song, Fuqin Li

Abstract

Taking the sucrose as the single substrate,the relation of the specific exogenous respiration rate and substrate-loading of activated sludge in different concentrations were investigated using a respirometry. The results show that the relation curves of the specific exogenous respiration rate and substrate-loading of activated sludge in different concentrations are quite similar,and the curves can be expressed with Michaelis-Menten equation. The maximum specific exogenous respiration rate of 35.043 7 mg/(g·h)andthe saturation constant of 1.006 1 are achieved.Besides,the specific endogenous respiration rate of 8.4 mg/(g·h) is measured.

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Key concepts: Respirometry, Respiration, Activated sludge, Respiration rate, Substrate (aquarium), Saturation (graph theory), Chemistry, Endogeny