| Abstrakt: |
Pyrolysis is an alternative process for waste management and pollution removal, and its biochar has the potential for energy generation and soil fertility improvement. In this study, the pyrolysis of fish waste (Sardinella fimbriata) was investigated in a fixed-bed reactor, and some of its biochar characteristics were determined. The composition, functional groups and surface morphology of the biochar were investigated after pyrolysis at 500oC. The results indicated that around 40 wt.% biochar, 31 wt.% liquid oil, and 28 wt.% non-condensed gas were produced from the reaction. The proximate and ultimate analysis showed that the weight percentage of carbon, fixed-carbon and ash contents in the biochar increased, whereas hydrogen and oxygen contents decreased compared to the raw sample. From Fourier-transform infrared spectroscopy, functional groups of O-H, C-H, C=O, C=C, C-O and C-O-C were detected in the biochar. Meanwhile, the surface morphology from Scanning Electron Microscopy showed that the biochar has longitudinal pores. The results of this study could help for a preliminary understanding of fish waste as feedstock for the pyrolysis process. Furthermore, the studied biochar properties could be used to suggest some of its potential usability. [ABSTRACT FROM AUTHOR] |
