Review of Recycling Plastic Waste into Briquettes

The increasing demand for energy in transportation, industry, and domestic activities around the world is the starting point of the industrial revolution that has an impact on the emergence of environmental problems. The innovation of processing waste into alternative energy sources is an idea that has good potential in overcoming dependence on conventional energy sources. Processing plastic waste into alternative fuels in the form of plastic briquettes, including tertiary recycling. Converting plastic waste into alternative fuels can be done using several variations of methods and variations of adhesive materials. On carbonization only produces one type only. Plastic briquettes (PP) can produce a higher heating value of 9982.779±240.017 cal/gram and 3.90% ash content. From plastic briquettes (PET) 7024.56 cal/gram and 0.27% ash content but also produces a high ash content, this is because there are still impurities in it. Meanwhile, for the type of adhesive with the same composition as briquettes with starch adhesive, the heat value was 6328 kcal/kg, arpus 6366 kcal/kg. Although the calorific value is higher, the arpus adhesive usually tends to produce briquettes with black smoke, this is due to the composition of the arpus which is made from rubber tree sap.