This study reviews the problems in the use and disposal of poly (ethylene terephthalate) (PET) and includes the concise background of virgin and recycled PET as well as their possible applications. The current state of knowledge with respect to PET recycling method is presented. Recycling of PET is the most desirable method for waste management, providing an opportunity for reductions in oil us...

Municipal solid waste (MSW) in the Accra region of Ghana has created need for innovative ways to deal with management crises facing city. The goal this study is use analytical hierarchy process (AHP) select an appropriate waste-to-energy (WtE) technology Accra. AHP methodology used assess four WtE technologies, namely landfill biogas, incineration, anaerobic digestion, and aerobic composting. T...

In this article we discuss the development of hazardous waste co-incineration in cement kilns in Brazil as well as its impacts on health and the environment. Information was gathered through an extensive review on social and environmental impacts of co-incineration, and case studies, chosen after discussion with social movement representatives concerned with the co-incineration issue and relate...

Waste incineration fly ash was successfully recycled to calcium phosphate hydrogel, a type of fast proton conductor. The crystallized hydrogel from incineration fly ash had a lower electric conductivity and a lower crystallinity than that from calcium carbonate reagent. However, the difference in electric conductivity between these crystallized hydrogels decreases with temperature. This was due...

States are often seen as policy laboratories where innovations are tried that may later be adopted by other states or the federal government. Engendering such experiments may, however, promote spillovers on other states. We analyze several of New York State's policy initiatives from the 1980s that were intended to influence the selection of waste management technologies by hazardous waste gener...

The cremation of human bodies and the incineration of urban waste provide two interrelated examples of technologies using the destructive power of fire that "travelled" in both directions between India and the West in the nineteenth and twentieth centuries. Rather than granting an automatic ascendency to western ways of burning the dead or disposing of urban rubbish, these case studies indicate...

Carbonization is a newly developed process that converts sewage sludge to biocoal, a type of solid biomass that can partially substitute for coal during power generation. This study presents an assessment of the environmental effects of various sewage sludge treatment processes, including carbonization, direct landfills, co-incineration with municipal solid waste, and mono-incineration in Taiwa...

Since enactment of the 1990 amendments to the Clean Air Act, the control and removal of volatile organic compounds (VOCs) from contaminated air streams have become a major public concern (1). Consequently, considerable interest has evolved in developing more economical technologies for cleaning contaminated air streams, especially dilute air streams. Biofiltration has emerged as a practical air...