Several proprietary industrial symbiosis software tools have been developed, however, without long term financial commitments these endeavors fall short of creating generalizable and sustainable tools. The recent development of virtual globes such as Google Earth (GE), an information service that provides imagery and three dimensional data depicting the entire physical earth, provides an opport...

Composting is clearly reported as one of the most effective technique to transform organic wastes into an interesting resource, useful to improve soil characteristics and playing a potential role in reducing greenhouse gases, due to its high content in stable organic matter (Favoino and Hogg, 2008). However, its agronomical properties are dependent on several factors, which pollutant contents b...

BACKGROUND Adequate management of healthcare waste (HCW) is a prerequisite for efficient delivery of healthcare services. In Nigeria, there are several constraints militating against proper management of HCW. This is raising some environmental concerns among stakeholders in the health sector. In this study, we analyzed the practices of HCW management and determinants of risky/safe indices of HC...

The aim of this paper is to present and compare alternative hierarchical formulations for the periodic vehicle routing problem applied to solid waste collection. The solution of this problem is a one-week plan of daily routes for the transportation of mixed solid waste from containers to disposal facilities, taking into consideration the frequency of collection of each container within the plan...

.Many of the most serious and complex problems facing the United States today result from our phenomenal tech­ nological achievements and. accelerating pace of urbaniza­ tion. The capacity of this nation to produce and consume goods has swelled dramatically, particularly in the two decades since the end of World War II. Within the same period, urban growth has compacted more than half of the to...