Analyzing the economic viability of a large-scale integrated model of municipal solid waste:a study case for the most important Brazilian economic region

摘要

Despite the National Policy for Solid Waste(PNRS)in 2010,nothing has changed to waste disposal in Brazil.Planned to reach 100% of all Municipal Solid Waste(MSW)collected and treated in landfills by Aug.2nd,2014,until nowadays,42% of this total remains in dumps.Even the most important national economic region treating its urban waste in landfills,what it has is no more than 4% of recycling and its landfills reaching the exhaustion.Building other ones is getting harder year by year,due to water reservoirs around the region,high freight costs,waste disposal and the severe control of emissions associated with its logistics.This article comes to break the paradigm of investment and profitability proposing an alternative to the land-use,achieving higher rates of recovering.The economic viability,carried out through well-known financial variables and Monte Carlo analysis,has taken into account proven local waste characteristics and market prices for recyclables and energy without subsidies.Even considered a proposal highly intensive in capital and people,the revenues from the sales would be enough to guarantee the viability of 100% equity with IRR of 33.7% and ROI of 24.5% per year within the confidence of 99%.