Porcelain and plastic materials constitute bulk of household wastes. Owing to resistibility and slow degradability that accounts for higher residence time, these materials qualify as potential hazardous wastes. Retention of water permits these wastes to form a congenial biotope for the breeding of different vector mosquitoes. Thus porcelain and plastic wastes pose a risk from public health view...

introduction medical waste contains highly toxic metals, toxic chemicals, pathogenic viruses and bacteria, which can lead to pathological dysfunction of the human body. the hazards of exposure to hospital waste can range from gastro-enteric, respiratory, and skin infections to more deadly diseases such as hepatitis b & c, and hiv/aids. additionally, medical waste contains potentially harmful mi...

Supercritical CO2 fluid leaching (SFL) method using supercritical CO2 fluid containing a complex of HNO3 tri-n-butyl phosphate (TBP) was applied to removal of uranium from radioactive solid wastes. Sea sands, incineration ashes and porous alumina bricks were employed as matrixes of simulated solid wastes. Real radioactive incineration ash wastes and firebrick wastes were also subjected to the S...

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...

conclusions considering the weight percentage of food wastes (70%), solid wastes of babolsar city could be used for composting. also as large quantities of infectious wastes were produced by hospitals of babolsar, it is recommended that sterilization systems (hydroclave) be used for decontamination of these hazardous wastes. materials and methods this study was a descriptive and cross-sectional...

electronic wastes (e-wastes) is the most rapidly growing segment of the municipal waste stream. e- wastes comprise 2-5 percent of municipal solid wastes, including many different electronic products. iran is the biggest consumer of electronic products in middle east. approximately, 1.2 million computers are assembled in iran every year. there are more than 40 million active cell phones in iran....

The wastes produced during the manufacture and use of paints have long been an environmental concern. Paint manufacturers have sought ways to reduce these wastes with significant success. Industrial paint users have also identified and implemented techniques and technologies to reduce their paint wastes. Frequently, these activities also result in reduced production and disposal costs. Despite ...

Of the 12 billion tons of waste generated annually in the United States; less than 10% is defined as hazardous under the provisions of RCRA. This paper summarizes the data available on some of the wastes that are defined as non-hazardous. These wastes include industrial non-hazardous waste, and several types of wastes that are currently exempted from hazardous waste regulations, such as oil and...