Electroplating and metalworking industries discharge large amounts of heavy metals, including copper (Cu), nickel (Ni) and zinc (Zn) ions, in their effluents have been recognized as a major problem to human health and aquatic life. Copper is highly toxic because it is non biodegradable and carcinogenic, Copper has been reported to cause neurotoxicity commonly known as “Wilson’s disease” due to ...

large volumes of mostly irreparable electronic waste (e-waste) are shipped to africa on a monthly basis, of which nigeria receives the largest share. e-waste management practices in nigeria have remained completely primitive until date; and e-waste workers have little or no occupational safety knowledge and devices. the thousands of chemicals in e-waste have been reported to be toxic to human h...

BACKGROUND In all, 70 municipal incinerators, 307 hospital incinerators and 460 toxic-waste landfill sites in Great Britain were examined for evidence of effluents causing childhood cancers. Municipal incinerators had previously shown significant excesses of adult cancers within 7.5 and 3.0 km. The relative risks for adults had been marginal and an analysis of childhood cancers seemed to offer ...

Industrialization and urbanization have led to the release of increasing amounts of heavy metals into the environment. Metal ion contamination of drinking water and waste water is a serious ongoing problem especially with high toxic metals such as lead and cadmium and less toxic metals such as copper and zinc. Several biological materials have attracted many researchers and scientists as they o...

It has been estimated that there are some 30,000 chemical waste dumps in the United States. Many of these landfill operations were undertaken in the early 1950s and 1960s, when knowledge regarding the safe and prolonged containment of the waste buried was nonexistent or minimal at best. As a result, many of these dump sites were located in areas that were geologically unsuitable for toxic chemi...

Reverse supply chains for the reuse, recycling, and disposal of goods are globalizing. This article critically reviews the environmental, economic, and social issues associated with international reuse and recycling of personal computers. Computers and other e-waste are often exported for reuse and recycling abroad. On the environmental side, our analysis suggests that the risk of leaching of t...

tailings in the deep ocean and their biological impacts is a signifi cant cause for concern.” The material can smother ecosystems at the disposal site, and if toxic metal ions are released into the water they may end up in the food web. The EU is currently producing new guidelines for best practice in the marine disposal of mining waste. On top of these legally permitted assaults on the oceans,...

Disposal of chrome tanned leather waste (CTLW) generated in leather processing industries has many environmental implications. This paper presents a double pyrolysis (PI & PII) method to dispose hazardous chrome tanned leather solid waste by converting it into useful products. When CTLW was subjected to double pyrolysis, three major products obtained were; (i) an energy enriched combustible gas...

Uranium mining waste piles, heavily polluted with radionuclides and other toxic metals, are a reservoir for bacteria that have evolved special strategies to survive in these extreme environments. Understanding the mechanisms of bacterial adaptation may enable the development of novel bioremediation strategies and other technological applications. Cell isolates of Bacillus sphaericus JG-A12 from...