Abstract
The district of Belakang Padang consists of 108 islands. On these islands, 43 islands are inhabited and 65 islands are uninhabited. The source of pollution on this island comes from community activities on land, such as throwing garbage in the sea and so on. In this paper, Floating Waste Treatment Facility will be designed on Self-Propelled Barge (SPB) with principle dimension: Lpp = 13 m; B = 2.48 m; and T = 0.589 m. The barge can accommodate 7 tons of waste consisting of a garbage tank and a sorting process along with a plastic press machine to reduce the volume of plastic waste. In the calculation of the volume requirement for waste weighing 7 tons, that is 16.43 m3. With an estimated 9 hours of sorting work, it can meet the volume of waste needs. The total investment for the construction of this facility is Rp 362,087,076.12 and the annual operating costs are Rp 458,692,802.67. This facility is feasible to build because of the value of several economic metrics as follows: NPV Rp 488,234,793; IRR 26% and PI 2,348.
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