A predictive model for N2O production in anammox-granular sludge reactors: Combined effects of nitrite/ammonium ratio and organic matter concentration

2021 ◽  
Vol 297 ◽  
pp. 113295
Author(s):  
T.D.S. Pereira ◽  
R.H. Spindola ◽  
C.A.B.S. Rabelo ◽  
N.C. Silveira ◽  
M.A.T. Adorno ◽  
...  
Keyword(s):  
Organic Matter ◽  
Predictive Model ◽  
Granular Sludge ◽  
Combined Effects ◽  
N2o Production ◽  
Organic Matter Concentration ◽  
Matter Concentration ◽  
Anammox Granular Sludge

Kinetic Analysis on Rotating Biological Contactor Treatment of Organic Matter

2012 ◽  
Vol 599 ◽  
pp. 322-325
Author(s):  
Fang Li ◽  
Zeng Lu Qi
Keyword(s):  
Organic Matter ◽  
Kinetic Equation ◽  
Kinetic Analysis ◽  
Removal Rate ◽  
Rotating Biological Contactor ◽  
Organic Matter Removal ◽  
Substrate Removal ◽  
Organic Matter Concentration ◽  
Cod Removal Rate ◽  
Matter Concentration

This paper adopts a 3-stage rotating biological contactor (RBC), studies kinetic analysis on RBC treatment of organic matter .Water temperature 25 °C and hydraulic retention time (HRT) 5h , COD concentration of influent varies from about 400 to 700mg / L, the average COD removal rate is 85% . According to Monod and Michaelis-Menten formula, organic matter removal kinetics equation in the first stage of RBC can be catched. When DO≥2mg/L, organic matter removal kinetic equation: U1=7.02S1/( S1+640.70), DO<2mg/L, organic matter removal kinetic equation: U2=35.97S2/( S2+4848.92) .Where U is substrate removal rate of unit area of disc, S is the organic matter concentration of substrate. Some reference values of the equation are very useful for practical application of RBC.

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