Municipal solid wastes (MSW) collected from Padang Siding Landfill, Perlis were segregated and characterized in the laboratory. The main components of MSW found are paper, plastic, glass and large proportion of organic waste. Moisture content was measured for all the components. Paper and yard wastes recorded the highest percentage of 26.7% and 28.8%, respectively. Thermogravimetric analysis (TGA) shows that the thermal degradation of MSW samples ranged from 200 °C to 800 °C, indicating fast decomposition occurred at 370 °C, 430 °C and 700 °C. Traditional method shows a lower error compared to the physical method in calculating the calorific values (CV) for MSW. Bio-oil production via fast pyrolysis route gave higher liquid yield of ~35% with high oxygen content of ~49 – 53%. Heavy oil recovered from hydrous pyrolysis experiments gave low yield of ~7 – 13%, however with low oxygen content of ~11 – 18%.
