Numerical simulation analysis on the characteristics of municipal domestic waste with high calorific value and sludge co-combustion

Tao, Lin; Liao, Yanfen; Yang, Xucong; Ma, Xiaoqian

doi:10.1080/15567036.2021.1982075

Energy Sources, Part A: Recovery, Utilization, and Environmenta

2021

DOI: 10.1080/15567036.2021.1982075

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Numerical simulation analysis on the characteristics of municipal domestic waste with high calorific value and sludge co-combustion

Lin Tao

Yanfen Liao

Xucong Yang

et al.

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2024

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Comparative analysis of adding cotton straw and corn stover to improve the combustion performance of municipal sludge

Xu,

Li,

2024

Sci Rep

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To address issues of high water content and low calorific value during combustion of municipal sludge, we added water-absorbent, easy-to-burn agricultural waste to improve the overall combustion performance. Cotton straw or corn stover were added to the sludge and mixed at high-speed to compare their capacities for improving combustion performance. Scanning Electron Microscopy (SEM) revealed that cotton straw or corn stover attached to the surface of the municipal sludge particles after blending, while analysis of thermogravimetric curves and activation energies of the blends showed that combustion and exhaustion rates increased significantly when 40% cotton straw or corn stover were blended into the sludge. Using the quadrilateral cut-ring boiler as a prototype, the mix of sludge with cotton straw or corn stover was simulated, and FLUENT software was used to obtain the temperature and pollutant emissions of the boiler. Sludge blended with cotton straw or corn stover increased furnace temperature and reduced SO2 and NO emissions, while that with cotton straw burned at higher temperatures with lower SO2 and NO emissions. Overall, the CO content of sludge combustion was lower when blended with proportions of cotton straw or corn stover under 50%. The findings of this study lay a theoretical foundation for treatment of municipal sludge according to local conditions.

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Comparative analysis of adding cotton straw and corn stover to improve the combustion performance of municipal sludge

Xu,

Li,

2024

Sci Rep

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Numerical simulation analysis on the characteristics of municipal domestic waste with high calorific value and sludge co-combustion

Cited by 1 publication

References 23 publications

Comparative analysis of adding cotton straw and corn stover to improve the combustion performance of municipal sludge

Comparative analysis of adding cotton straw and corn stover to improve the combustion performance of municipal sludge

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