Industrial effluents loaded with heavy metals are a cause of hazards to human and other forms of life. Conventional methods such as precipitation, evaporation, electroplating, ion exchange, membrane processes, etc. used for removal of heavy metals from waste water however, are often cost prohibitive having inadequate efficiencies at low metal ion concentrations. Biosorption can be considered as...

Metals and metal compounds have been used for many years in the manufacture of plastic products. The metallic compounds added to plastics although encapsulated in polymer matrix are usually not chemically bound to polymer molecules and consequently can gradually be released to environment over the service life of a plastic made object. Similarly, when disposing of plastic waste either by incine...

Proper management of used electrical and electronic equipment (EEE), known as e-waste, is causing a significant challenge for many countries around the world. United Nations estimate that world generated 53 million metric tonnes (Mt) e-waste in 2019, mostly from Asian region. Poor handling can cause severe environmental human health issues due to toxic compounds e-waste. E-waste also contains v...

Due to vast probable contaminations from pharmaceutical effluent, the main purposes of this study were to decrease the heavy metal toxic levels from waste water of pharmaceutical research and educational laboratories. The potential ability of A. Vera for cleaning up contaminated educational sites soil and the probable capability of this plant to phytoextract different metals (Chrome (III) and (...

The discharge of potentially toxic trace metals into the environment has become a global problem. As a result of industrial activities and technological development, the amount of heavy metal ions discharged into streams and rivers by industrial and municipal waste-water have been increasing. In addition to natural sources of heavy metals (i.e. geologic weathering, volcanic activity, and animal...

in this study, concentrations of heavy metals in soils around a zn-smelter in qeshm island, iran, are investigated. calculated geoaccumulation index (igeo), contamination factor (cf), and contamination degree (cdeg) values indicate surface soil contamination by toxic metals (as, cd, pb, and zn). the results also indicate that most contaminated areas are located in the vicinity of the smelter an...

Electronics waste is becoming a crisis for the society. Huge accumulation of e-waste and their recycling through primitive means for extraction of precious metals is real concern in the developing countries as e-waste contains hazardous materials. Recycling of e-waste through proper technologies is, however, considered to be a profitable business in developed countries due to the presence of pr...

Open cell polyurethanes (PUF) find wide range of applications as good column materials for the concentration and removal of both organic and inorganic pollutants because of their high efficiency for sorption of various ionic and neutral materials. Ammonium pyrrolidine (APDC) loaded PUF were found to ct as good sorption materials which can be applied to develop commercially viable and highly eff...

This study discusses the content of different elements including toxic metals (Ba, Cd, Pb, Sr) in hair of adult subjects exposed to a wide spectrum of pollutants. Scalp hair samples were collected from inhabitants of the rural outskirts of Gdańsk, located in the north of Poland (from citizens living near a phosphate fertilizer waste disposal place) and from the donors who were employed in two f...

Persistent heavy metal pollution poses a major threat to all life forms in the environment due to its toxic effects. These metals are very reactive at low concentrations and can accumulate in the food web, causing severe public health concerns. Remediation using conventional physical and chemical methods is uneconomical and generates large volumes of chemical waste. Bioremediation of hazardous ...