Study of the relationship between the generation of domestic solid waste and consumption of water and electricity: alternative pricing of solid waste collection

Abstract

The municipality of Florianópolis, as well as many municipalities, is facing difficulties related to financing the costs of solid waste management, since the collection by the garbage collection fee, charged by the property tax, is insufficient to fund all expenses system. This study aims to evaluate the relationship between water and energy consumption with the production of municipal solid waste towards a new basis of calculation for determining the value of "solid waste fee" for the city of Florianópolis. The methodology consisted of daily weighing of RSW, reading of water consumption and electricity in two multifamily residential buildings, in addition to obtaining monthly data of MSW generation and consumption of water and electricity in two regions of the municipality. Data were statistically worked through regression analysis. The results indicate a rate of RSW per capita generation of 0.9 kg / capita / day for the regions studied and 0.6 kg / capita / day for multifamily condominiums. The results also showed a strong relationship between water consumption and electricity consumption with the generation of solid waste, when data were pooled treated for consumption ranges, showing it is possible to estimate the amount of RSD generated by a building from their water or electricity.