The role of a compost house in producing externalities, based on an Islamic perspective

The city of Surabaya received Adipura trophies from the Indonesian Government in 2019 because of its very good performance in environmental management, especially waste. The Mayor made a program, part of which was the construction of a compost house in Bratang. Waste management in the Bratang Compost House has a positive externality, that is proven by odour and by the sound produced not exceeding the specified standards. In addition, the existence of compost houses can help preserve the environment of Surabaya and become a source of waste electricity generation (PLTSa: Waste Power Plant). The data in this study were obtained from interviews, observations, and literature studies. It was then analyzed using explanatory descriptive techniques. The analysis shows that the Bratang compost house produces more benefits than harm. This is in accordance with Islamic values and therefore worthy as an operation. It is expected that the results of this study can be a reference for governments in other regions managing waste, as something beneficial for the community, environment, and local government. This paper is also expected to be an additional literature for government, academics, and those who care about the impact of waste management from an Islamic perspective.