The application of the analytical hierarchy process (AHP) in determining organic waste process technology-oriented-reducing greenhouse gas

The existence of waste in the environment, which is not managed well, could contribute to global warming and cause climate change on the earth. This research aimed to determine the suitable management preference for organic waste treatment produced in small cities. The methods used are based on pair comparison in hierarchy decisions developed through the analytical hierarchy process. The hierarchy consisted of goals, criteria, sub-criteria and alternatives applied to waste treatment engineering. The expert suggestion was used in a pair comparison matrix to determine the level of technology. The comparison was used to get the significance level of decision criteria and the relative performance of the options. The city’s waste managed by the Buleleng government was used to demonstrate the application of the analytical hierarchy process in that region. The result showed that the important factor in deciding on waste treatment for the small city is environment and engineering, with each eigenvector priority (0.28), sociocultural (0.24) and economy (0.20). According to the recruitment preference for Singaraja waste treatment, the analytical hierarchy process showed that controlled landfill and composting are the most suitable treatment, followed by incineration, anaerobic digestion, and mechanical and biological treatment.