1. Introduction
Solid waste management (SWM) often represents a significant proportion of the total recurrent municipal budget in cities of low- and middle income countries (Scheinberg et al., 2010). Despite the high financial burden, the local authorities often struggle to provide adequate and reliable services for all. According to the World Bank and USAID, it is common for municipalities in developing countries to spend 20–50% of their available municipal budget on SWM, which often can only stretch to serve less than 50% of the population (Henry et al., 2006; Memon, 2010).