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|Title:||Production of a solid fuel using sewage sludge and spent cooking oil by immersion frying|
Spent cooking oil
|Source:||Wu, Z., Zhang, J., Li, Z., Xie, J., Mujumdar, A.S. (2012). Production of a solid fuel using sewage sludge and spent cooking oil by immersion frying. Journal of Hazardous Materials 243 : 357-363. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jhazmat.2012.10.054|
|Abstract:||Sewage sludge and spent cooking oil are two main waste sources of modern Chinese cities. In this paper, the immersion frying method using spent cooking oil as the heating medium was applied to dry and convert wet sewage sludge into a solid fuel. The drying and oil uptake curves were plotted to demonstrate the fry-drying characteristics of the sewage sludge. Parametric studies were carried out to identify the governing parameters in the frying drying operation. It was found that at frying oil temperatures of 140-160 °C, the wet sewage sludge could be dried completely in 6-9. min and converted into a solid fuel with a high calorific value of 21.55-24.08. MJ/kg. The fuel structure, chemical components, pyrolysis and combustion characteristics were investigated and the experimental results showed the solid fuel had a porous internal structure and a low ignition temperature of 250 °C due to presence of oil. The frying drying mechanism was also discussed. © 2012 Elsevier B.V.|
|Source Title:||Journal of Hazardous Materials|
|Appears in Collections:||Staff Publications|
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