Bacteria from deep ocean could serve as powerful clean-up tool for heavy metal pollution
June 5th, 2009 - 12:28 pm ICT by ANI ( Leave a comment )Washington, June 5 (ANI): In a new research, scientists have described a bacteria deep under the Pacific Ocean, which can prove to be highly effective in cleaning up heavy metal pollution.
The bacteria, a particular strain of Brachybacterium, strain Mn32, was described by Professor Gejiao Wang and his colleagues from Huazhong Agricultural University in Wuhan, China.
According to them, the bacteria proved to be highly effective in removing manganese from solutions, converting it into insoluble manganese oxides.
Not only did the bacterium directly oxidize the manganese, but the resulting oxides themselves also absorbed the metal from the culture solution, making Brachybacterium sp Mn32 a potentially useful candidate for use in bioremediation and cleaning up pollution.
As well as removing manganese from its environment, the Brachybacterium also absorbed significant amounts of zinc and nickel.
All of these metals are found as pollutants in water and soils contaminated by heavy industries such as steel-making.
Manganese oxides can be manufactured chemically and are known to absorb zinc and nickel; but the oxides produced by this bacterium absorbed two- to three- times more metal.
Professor Wang’s team showed that the crystal structure of the bacterial manganese oxides is different to that of the chemically produced ones, with a greater surface area which enables more of the metal ions to be absorbed.
According to Professor Wang, “The next stage of our research is to immobilize this bacterial strain into a bioreactor to test its ability to remove manganese and other heavy metals in such a system. If successful, it could provide a more efficient way to clean up heavy metal pollutants.” (ANI)
- Bugs can destroy toxins in polluted groundwater - Aug 02, 2011
- Some bacteria 'go to sleep to hide from antibiotics' - Apr 26, 2011
- Now bugs that mop up mercury spills - Aug 12, 2011
- World's toughest bacterium discovered - Sep 06, 2010
- How bacteria inhale toxic metals and exhale oxygen - Mar 17, 2009
- Increasing pollution levels choking India's lakes - Sep 29, 2011
- Bacteria to clean radioactive-contaminated water bodies - Sep 09, 2009
- Scientists use bacteria to make radioactive metals inert - Sep 09, 2009
- Researchers create a living neon sign - Dec 20, 2011
- How bacteria developed resistance to antibiotics - Dec 28, 2010
- Some bugs doze off to outwit antibiotics - Apr 26, 2011
- Novel device filters heavy metals from water - Dec 18, 2011
- Scientists boost production of biofuel that could replace gasoline - Aug 20, 2009
- Chemical mechanism behind bugs' antibiotic resistance identified - Apr 29, 2011
- Now, 'artificial nose' to sniff out bacterial infections! - Apr 28, 2011
Tags: agricultural university, bacteria, bacterial strain, bacterium, bioreactor, crystal structure, deep ocean, heavy industries, heavy metals, manganese oxides, metal ions, metal pollutants, metal pollution, pacific ocean, pollutants in water, professor wang, research scientists, surface area, wuhan china, zinc