Abstract

The combustion method, due to its convenience and high-efficiency in harmless treatment, has been widely used in disposal of wastewater. With a wastewater burner as the study case, we performed numerical simulation by the Fluent software, analyzed the flowing and combustion process of the wastewater samples in the burner, compared the combustion effect of different atomization conditions — the spray cone model (hollow cone model, solid cone model), the spray angle, non-uniform grain size, uniform grain size. The study aims to provide suggestions for design and selection of wastewater burners.

Highlights

  • Combustion disposal has salient performance in treatment of high-moisture wastewater: it can efficiently remove the pollutants in organic wastewater, but is ecofriendly as it can recycle energies

  • We explored the atomization and combustion characteristics of wastewater, analyzed the influencing factors and control variables of the combustion process, with a vision to improve the design and promote the application of wastewater burners

  • The wastewater burner equipped on the wastewater combustion comprehensive testbed as the study object is used as the study object of this study [1]

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Summary

Introduction

Combustion disposal has salient performance in treatment of high-moisture wastewater: it can efficiently remove the pollutants in organic wastewater, but is ecofriendly as it can recycle energies. Having gained rapid development in these years, this technique enjoys a great prospect of application. The atomization characteristics of the burner are an important factor for design of the burner. We explored the atomization and combustion characteristics of wastewater, analyzed the influencing factors and control variables of the combustion process, with a vision to improve the design and promote the application of wastewater burners

Physical model and grid partitioning
Mathematical model and the fuel component
Simulation result and analysis
Spray angle
Uniform grain size and non-uniform grain size
Different uniform grain sizes
Conclusions

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