Three-dimensional three-phase model for simulation of hydrodynamics, oxygen mass transfer, carbon oxidation, nitrification and denitrification in an oxidation ditch
L Lei, J Ni - Water research, 2014 - Elsevier
A three-dimensional three-phase fluid model, supplemented by laboratory data, was
developed to simulate the hydrodynamics, oxygen mass transfer, carbon oxidation …
developed to simulate the hydrodynamics, oxygen mass transfer, carbon oxidation …
Study on two operating conditions of a full-scale oxidation ditch for optimization of energy consumption and effluent quality by using CFD model
The operating condition of an oxidation ditch (OD) has significant impact on energy
consumption and effluent quality of wastewater treatment plants (WWTPs). An …
consumption and effluent quality of wastewater treatment plants (WWTPs). An …
PDA experiments and CFD simulation of a lab-scale oxidation ditch with surface aerators
L Fan, N Xu, Z Wang, H Shi - Chemical Engineering Research and Design, 2010 - Elsevier
Though hydrodynamic characteristic is an important parameter for the optimization of
reactors, very little research deals with the hydrodynamics of oxidation ditches. This paper …
reactors, very little research deals with the hydrodynamics of oxidation ditches. This paper …
A general model of the activated sludge reactor with dispersive flow—I. model development and parameter estimation
A general dynamic model, including biological processes, hydraulics, oxygen transfer and
temperature, was developed for the activated sludge reactor. Transport of wastewater …
temperature, was developed for the activated sludge reactor. Transport of wastewater …
The hydrodynamic characterization of an oval airlift open pond (AOP) in the air–water system
In airlift systems, the difference in gas holdup (εg) between the riser and the downcomer
creates the driving force for liquid circulation. This feature can be an interesting approach to …
creates the driving force for liquid circulation. This feature can be an interesting approach to …
Comparative analyses on nitrogen removal microbes and functional genes within anaerobic–anoxic–oxic and deoxidation ditch sewage-treating processes in Wuhan …
S Liu, Y Liu, L Ye, E **ao, D Xu, H Chao, J Dai… - Frontiers in …, 2024 - frontiersin.org
Introduction Anaerobic–anoxic–oxic (A2/O) and deoxidation ditch (DOD) processes are
being increasingly preferred owing to their effectiveness in treating various wastes in …
being increasingly preferred owing to their effectiveness in treating various wastes in …
Computational fluid dynamics simulation of flows in an oxidation ditch driven by a new surface aerator
W Huang, K Li, G Wang, Y Wang - Environmental engineering …, 2013 - liebertpub.com
In this article, we present a newly designed inverse umbrella surface aerator, and tested its
performance in driving flow of an oxidation ditch. Results show that it has a better …
performance in driving flow of an oxidation ditch. Results show that it has a better …
Calibration and application of a 1-D model for oxidation ditches
N Lesage, M Sperandio, C Lafforgue… - … engineering research and …, 2003 - Elsevier
The aim of this work is to investigate the co-influence of hydrodynamics, oxygen transfer and
biological activity in an oxidation ditch via the comparison of a predictive model and …
biological activity in an oxidation ditch via the comparison of a predictive model and …
Flow field prediction in full-scale Carrousel oxidation ditch by using computational fluid dynamics
In order to optimize the flow field in a full-scale Carrousel oxidation ditch with many sets of
disc aerators operating simultaneously, an experimentally validated numerical tool, based …
disc aerators operating simultaneously, an experimentally validated numerical tool, based …
Modeling of the hydrodynamics and energy expenditure of oxidation ditch aerated with hydrojets using CFD codes
This work uses computational fluid dynamics (CFD) as a design tool in wastewater treatment
modeling practice to assess the specific use of the hydrojets in oxidation ditches. The …
modeling practice to assess the specific use of the hydrojets in oxidation ditches. The …