effectiveness of indigenous local microorganisms in degrading hexavalent chromium (Cr(VI)) in Batik liquid waste

Occupational Exposure to Hexavalent Chromium (CrVI)

Mechanisms of hexavalent chromium resistance and removal by microorganisms.

Chromium has been and is extensively used worldwide in multiple industrial processes and is routinely discharged to the environment from such processes. Therefore, this heavy metal is a potential threat to the environment and to public health, primarily because it is non-biodegradable and environmentally persistent. Chromium exists in several oxidation states, the most stable of which are triva...

Melanin-embedded materials effectively remove hexavalent chromium (CrVI) from aqueous solution

BACKGROUND Currently, it is recognized that water polluted with toxic heavy metal ions may cause serious effects on human health. Therefore, the development of new materials for effective removal of heavy metal ions from water is still a widely important area. Melanin is being considered as a potential material for removal of heavy metal from water. METHODS In this study, we synthesized two m...

Hexavalent chromium removal by waste mycelium of Aspergillus awamori

In this study , the Cr(VI) rem oval potential of waste mycelium from the industrial x ylanase-producing strain Aspergillus awamori was evaluated. It was d etermined by FTIR analy sis that a mino groups fro m the major fungal wall con stituents, chitin and chitosan, pl ayed a key role in t he metal bindi ng process. The effect of pH, initial ion c oncentration, temperature and amount of biomass ...

Carcinogenicity of hexavalent chromium.

Hexavalent chromium (Cr(VI)), a commonly used industrial metal, is a well known human lung carcinogen. Epidemiology and animal studies suggest that the particulate Cr(VI) compounds, specifically the water insoluble compounds, are the more potent carcinogens; however, the carcinogenic mechanism remains unknown. Here we summarize recent Cr(VI)-induced human tumour, in vivo, cell culture and in vi...