  In this paper, we propose a new mathematical optimization approach to make
decisions on the optimal design of a logistic system to produce biogas from
waste. We provide an integrated model that allows decision makers to optimally
determine the locations of different types of plants and pipelines involved in
the logistic process, as well as the most efficient distribution of the
products (from waste to biomethane) along the supply chain. We analyze the
mathematical model and reduce its size, being able to solve realistic instances
in reasonable CPU times. The results of our computational experiments, both in
synthetic and in a case study instance, prove the validity of our proposal in
practical applications.
