A Three Dimensional Simulation of M-ICAR Process

Quan Yue Geng; Jie Wang; Hong Wei Zhang; Hui Jia

doi:10.4028/www.scientific.net/AMR.516-517.54

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 516-517A Three Dimensional Simulation of M-ICAR Process

A Three Dimensional Simulation of M-ICAR Process

Abstract:

Adopting standard k-ε turbulent model and mixture flow model, settling process and decant process was simulated using 3-d numerical simulation in M-ICAR(Mixture-Intermittently Cycle Aeration Reactor) process to analyze the changes of sludge phase volume fraction. The simulation results showed that the changes of feeding wastewater had great influence on sludge settle ability in decant process, and the position of decanter needed optimized; it had no influence on sludge settle ability in settling process. For considering the lowest hydraulic retention time, the research controlled maximum feeding wastewater for 1610m3/h. Internal recycle had no influence on sludge settle ability. Two methods were proposed: the first one, the water level of decanter was set 3.9m (sludge volume fraction of this suspended area was less than 0.05), feeding velocity was 0.07 m/s; the second, keep the water level of decanter 3.75 m, reduce feeding velocity (preliminary setting feeding velocity 0.06 m/s). The two methods had no influence on sludge settle ability.

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Periodical:

Advanced Materials Research (Volumes 516-517)

Pages:

54-57

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.516-517.54

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Online since:

May 2012

Authors:

Quan Yue Geng, Jie Wang, Hong Wei Zhang, Hui Jia

Keywords:

M-ICAR Process, Numerical Simulation, Sludge Settle Ability, Sludge Volume Fraction

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