Desalination Sea Water Using Waste as a Source of Energy for Small and Remote Island

The problem in small and remote islands is limited freshwater and waste management. One solution to solve the fresh water and waste problem is by using waste as an energy source to convert sea water into fresh water (desalination). To this end, the purpose of this research is to design and build seawater desalination apparatus that uses waste as a source of energy. This research was conducted by making the tool then testing. Testing is done by using four different types of waste: coconut shells, twigs, plastics and mix wastes with four different variations sea water volume: 123 liters, 103 liters, 74 liters and 53 liters. Burning temperature is measured using a thermocouple, salinity was measured using a salinity meter, and the acidity of the water was measured with litmus paper. The results of this study are the dimensions of the tool according to the scale of households in the islands. Dimensions of 100 cm (length) x 80 cm (width) x 100 cm (height) with the volume of the burning chamber can accommodate 2 kg of waste. Sea water volume increase causing the volume of fresh water and salt levels also increased. The highest volume of water was obtained using plastic wastes. Lowest salt levels obtained when using wood wastes. A significant difference in the production of freshwater was seen as a result of using different types of waste.