| Abstrakt: |
Plastic waste is a global problem in every country, especially in Indonesia, where recycling industries are very few. Furthermore, aside from the expensive costs required, processed varieties are also highly limited. This study examines a simple method with good potentials to be developed by the government as well as the community and the result of this study is expected to be one of the solutions in overcoming the waste problem. Besides, based on data obtained from the Kebon Kongok Regional Landfill, West Lombok, the average composition of the community waste was almost 73.5% plastic, 24.6% organic materials and 1.9% B3 (dangerous and toxic material) waste. The method developed was very simple, as it involved heating a cleaned plastic mixture about 168°C in a closed system, and subsequently, the gas and smoke produced were liquefied and cooled. Heating is carried out in a reactor made of stainless still with a total volume of about 20 liters equipped with temperature control. Meanwhile, the remaining combustion that was in the molten phase was therefore molded into building materials, e.g., paving blocks, with compressive strength that is comparable to ordinary concrete. In addition, the results of liquid smoke condensation, further, produced two light fractions that were not mixed. GCMS analysis showed that the hydrocarbon compound has the number of carbons in range 8-12 atom for both fractions. Based on the FT-IR and UV-Vis spectrums confirmed the presence of aromatic benzene groups in both the fraction, while the second fraction contains more complex hydrocarbon than the first fraction. Major hydrocarbon in the first fraction is n-nonene and 5-methyl-1-heptene, whereas major hydrocarbon in the second fraction is n-nonene, 5-methyl-1-heptene and n-decene. [ABSTRACT FROM AUTHOR] |
