background cadmium is a toxic metal that occurs naturally in the environment and is considered as a pollutant emanating from industrial and agricultural sources. biosorption is a very simple and cheap technique for removal of metal pollutants from aqueous samples. objectives in this study, removal of cadmium from aqueous solutions using c. colocynthis fruit powder was studied. materials and met...

Industrial human activity has led to the release of substantial amounts heavy metals into environment. Contamination water with such as lead, cadmium, copper, zinc, chromium, or nickel represents a serious problem. As part circular economy, it is appropriate use biowaste from agriculture, fisheries, and timber industry biosorbents. In this literature review, potential using these groups biosorb...

While Cd production, consumption, and environmental release have all skyrocketed in recent decades, there is currently no practical way to recycle compounds. This suggests that compounds may be very dangerous human health. Due this cadmium remediation from polluted environment urgently needed. Several viable technologies include biosorption, which has several positive aspects low operating expe...

The biosorption behaviour of arsenic(V) and cadmium(II) ions by unmodified five types chemically modified Chlorella vulgaris Spirulina platensis was investigated. rates As(V) Cd(II) in binary metal solutions were lower than those sole systems, which exhibited a competition between to occupy the active sites adsorbent. Among chemical reagents, NaCl ZnCl2 most suitable modifiers for improving per...

Toxicity and accumulation of Cd2+ in yeasts were studied in eight different yeast species. The adaptation to toxic concentration of this metal was dependent on the production of extracellular yeast glycoproteins. The highest concentration of Cd2+ ions in the growth medium was tolerated by a Hansenula anomala, strain while the lowest tolerance was found by the strain of species Saccharomyces cer...

This study reports surface complexation models (SCMs) for quantifying metal ion adsorption by thermophilic microorganisms. In initial cadmium ion toxicity tests, members of the genus Geobacillus displayed the highest tolerance to CdCl2 (as high as 400 to 3,200 microM). The thermophilic, gram-positive bacteria Geobacillus stearothermophilus and G. thermocatenulatus were selected for further elec...

Heavy metals are a threat to human health and ecosystem. These days, great deal of attention is being given to green technologies for purification of water contaminated with heavy metal ions. Biosorption is one among such emerging technologies, which utilizes naturally occurring waste materials to sequester heavy metals from wastewater. Cadmium has hazardous impact on living beings; therefore, ...