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...

Background & Aims of the Study: Nowadays, the quality of water is a very important concern. High levels of heavy metals in drinking water may cause some health problems such as cancer. The aim of this study is determination of some heavy metal concentrations in groundwater of some parts of Qorveh county, Kurdistan, Iran. Materials & Methods: In this study 25 water samples...

background:the use of herbal or medicinal plants in various forms has been popular for thousands of years. it is estimated that about 70–80% of the world’s population relies on alternative medicine, mainly of herbal origin. however, due to the nature and sources of these plants, they are sometimes contaminated with toxic heavy metals, which pose serious health risks to consumers. herbal formula...

This study was conducted to determine the concentration of five heavy metals, including lead, cadmium, mercury, arsenic, and chromium in muscle, liver and gills of the gray mullet, Liza aurata in southern part of the Caspian Sea. The samples were collected during sexual maturity (in the fall) and sexual rest (in the spring). The mean concentration of lead, cadmium, mercury, arsenic, and chromiu...

Background: A pot experiment was conducted to determine the toxic effects of some heavy metals on the plant growth and seed yield of maize (Zea mays L.). Materials and Metheds: Heavy metals Mn, Pb, Cd, Cr and Co individually and in combinations were added as chloride salts in solutions to the pots before sowing. The test plants for were harvested after 80 days of germination and evaluated f...

Introduction Bacteria may carry determinants of resistance to a number of heavy metals, including silver, bismuth, cadmium, cobalt, copper, mercury, lead, nickel, thallium or zinc cations and the oxyanions of arsenic, chromium, antimony, tellurium or tungsten. Such resistance determinants have been reviewed extensively [ 1-41. Bacterial resistance to heavy metals is conferred by specific resist...

In this study, heavy metals such as Al, Cr, Cu, Zn, Cd, Hg, Pb etc. content in liver, muscle and gill of three economical marine species [striped seabream (Lithognathus mormyrus Linneaus, 1758), two-band bream (Diplodus vulgaris Geoffroy Saint-Hilaire, 1817) and Common pandora (Pagellus erythrinus Linneaus, 1758)] obtained from 4 stations (Fethiye, Bodrum, Datça, Marmaris) in South Aegean coast...

Application of aromatic compounds has dramatically increased as raw materials in various industries and different factories have been established to produce aromatic compounds. The current research aims at characterizing industrial waste generation in aromatics production process in petrochemical industries and determining the best feasible alternative for waste disposal. For this purpose, the ...

Heavy metals such as cadmium (Cd), mercury (Hg), lead (Pb), chromium (Cr) and platinum (Pt) are a major environmental and occupational hazard. Unfortunately, these non-essential elements are toxic at very low doses and non-biodegradable with a very long biological half-life. Thus, exposure to heavy metals is potentially harmful. Because of its ability to reabsorb and accumulate divalent metals,...