Solid waste management is a challenge for the cities' authorities in developing countries mainly due to the increasing generation of waste, the burden posed on the municipal budget as a result of the high costs associated to its management, the lack of understanding over a diversity of factors that affect the different stages of waste management and linkages necessary to enable the entire handl...

Waste is a symbol of inefficiency in modern society and represents misallocated resources. This paper outlines an on-going interdisciplinary research project entitled ―Integrated ETWW demand forecasting and scenario planning for low-carbon precincts‖ and reports on first findings and a literature review. This large multi-stakeholder research project develops a shared platform for integrated ETW...

Vermicomposting is a suitable technology for processing different wastes, to produce a valuable end product (vermicompost). However, the pathogenic load of the waste must be greatly reduced in order to prevent risks to human health. Although Eisenia andrei may reduce the levels of several pathogens, the feasibility of vermicomposting, with regard to pathogen reduction, has not been tested on an...

The objective was to evaluate the effect of tannery sludge vermicompost in the chemical properties of soil cultivated with tomato and irrigated with wastewater. The experimental design was completely randomized in a factorial 6 × 2, totaling twelve treatments with three replications. The treatments were: four tannery sludge vermicompost (25% Sludge tannery(LC) + manure T1, 25% Sludge tannery(LC...

This paper presents to demonstrate a new tool for designing integrated municipal solid waste to energy systems in the urban environment, in determining how municipal solid waste can be used to generate energy rather than being disposed of in landfills and whether it will be economical to do so. A tool has been developed to design energy system in urban environment looking at the impact of urban...

BACKGROUND This reports the initial phase of a study to quantify the spatial pattern of cigarette butt waste in an urban environment. METHODS Geographic Information Systems (GIS) was used to create a weighted overlay analysis model which was then applied to the locations of businesses where cigarettes are sold or are likely to be consumed and venues where higher concentrations of butts may be...

One of the greatest challenges facing most urban centers in Nigeria today is how to cope with the increasing volume of solid wastes being generated daily by its populace. Municipal solid waste tend to be one of the most visible and serious environmental problems in Nigerian cities [1]. This is manifested by large refuse heaps which dot most carriageways, streets and surroundings disfiguring the...