Abstract
The computational fluid dynamics (CFD) technology is analyzed and calculated utilizing the turbulence model and multiphase flow model to explore the performance of internal circulating fluidized beds (ICFB) based on CFD. The three-dimensional simulation method can study the hydrodynamic properties of the ICFB, and the performance of the fluidized bed is optimized. The fluidization performance of the ICFB is improved through the experimental study of the cross-shaped baffle. Then, through the cross-shaped baffle and funnel-shaped baffle placement, the fluidized bed reaches a coupled optimization. The results show that CFD simulation technology can effectively improve the mass transfer efficiency and performance of sewage treatment. The base gap cross-shaped baffle can improve the hydraulic conditions of the fluidized bed and reduce the system energy consumption. The cross-shaped baffle and funnel-shaped baffle can perfect the performance of the reactor and effectively strengthen the treatment in the intense aerobic process of industrial sewage.
Highlights
Today, as water shortage and pollution get severe day by day, sewage treatment has become crucial in improving the earth’s environment and promoting the sustainable development of human beings
After the corresponding computational fluid dynamics (CFD) simulation method is established, the grid size factor is added and analyzed and studied as a whole to see if it interferes with the accuracy of CFD simulation results
The suitable conditions are selected for mass transfer and flow in the internal circulation fluidized bed (ICFB)
Summary
As water shortage and pollution get severe day by day, sewage treatment has become crucial in improving the earth’s environment and promoting the sustainable development of human beings. Based on the conventional sewage treatment methods, internal circulation fluidized bed (ICFB) integrated the biofilm process within and is applied in chemical fluidization technology, forming a piece of new biological treatment equipment [1]. This equipment performs superiorly in fluid mechanics, and maintains mass transfer quality. Since this new type of equipment is still in the research stage, some data and design cannot be verified with the actual data but only compared with empirical data.
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