objective: dental solid wastes often contain hazardous substances. the first step of management of dental solid wastes includes detection and classification of these substances. this study aimed to qualitatively and quantitatively assess the management of solid wastes by dental offices in urmia city in 2013. methods: this descriptive study was conducted on all private dental offices in urmia ci...

Environmentalists worry that hazardous wastes produced in industrialized nations are being dumped in cash-starved developing countries--the countries with the least political or economic clout to resist and the fewest resources for managing these toxic imports. Imported waste can pose a serious threat to the health of human populations and ecosystems if not managed appropriately. In 1989, the i...

the management of hospital wastes is of high importance, because of their infectious and hazardous potential. this is a cross-sectional study based on questionnaire, interview, observation and meetings performed in major mashhad hospitals in 2009. weight and per capita waste production were determined. moreover, the status of production, separation, storage, collection, treatment, transportatio...

Hazardous solid wastes may pose a serious risk to human health and to the environment, if not managed appropriately and disposed of safely. In this study, the effective stabilization of tannery sludge, a toxic industrial solid waste produced from the physico-chemical treatment of tannery wastewaters, was examined by the addition of ladle furnace slag (LFS), another industrial solid waste. Moreo...

Need for an online hazardous waste tracking system Suneel Pandey Hazardous waste management is one of the most challenging aspects of any environmental management system for any industry. There are more than 50 000 chemical substances, with one million combinations, used in industrial activities. Hazardous wastes – in the form of solids, liquids gases or sludge – are generated by a wide range o...

At a large research laboratory facility the management and control of hazardous materials, and their subsequent wastes can be an unmanageable task. Environmental regulations, mandated by the Resource Conservation and Recovery Act of 1976, established a Federal program to provide comprehensive regulation of hazardous solid waste materials from their generation time to their disposal. In an effor...

The consideration that end-of-life mobile phones are hazardous wastes is likely to be controversial with those who might be unaware that cell phones contain hazardous substances and as such will be regulated under the international definitions of hazardous waste once they are discarded. However this matter has largely been resolved for us by the definitions found in the Basel Convention and by ...

Issues of hazardous waste management are major concerns in the countries of eastern and central Europe. A National Institute of Environmental Health Sciences-supported conference was held in Prague, Czech Republic, as a part of a continuing effort to provide information and promote discussion among the countries of eastern and central Europe on issues related to hazardous wastes. The focus was ...

Overview Learning Objectives 9.1 Hazardous Waste: Identification and Classification 9.1.1 Identification 9.1.2 Classification 9.2 Hazardous Waste Management 9.2.1 Generation 9.2.2 Storage and collection 9.2.3 Transfer and transport 9.2.4 Processing 9.2.5 Disposal 9.3 Hazardous Waste Treatment 9.3.1 Physical and chemical treatment 9.3.2 Thermal treatment 9.3.3 Biological treatment 9.4 Pollution ...