NDLI: Mercury bioremediation by mercury accumulating Enterobacter sp. cells and its alginate immobilized application

Content Provider	Springer Nature Link
Author	Sinha, Arvind Khare, Sunil Kumar
Copyright Year	2011
Abstract	The effective microbial remediation of the mercury necessitates the mercury to be trapped within the cells without being recycled back to the environment. The study describes a mercury bioaccumulating strain of Enterobacter sp., which remediated mercury from the medium simultaneous to its growth. The transmission electron micrographs and electron dispersive X-ray analysis revealed the accumulation of remediated mercury as nano-size particles in the cytoplasm as well as on the cell wall. The Enterobacter sp. in the present work was able to accumulate mercury, without being engineered in its native form. The possibility of recovering the accumulated mercury from the cells is also indicated. The applicability of the alginate immobilized cells in removing mercury from synthetic and complex industrial effluent in a batch mode was amply demonstrated. The initial load of 7.3 mg l−1 mercury in the industrial effluent was completely removed in 72 h. The cells immobilized in calcium alginate were similarly effective in the complete removal of 5 mg l−1 HgCl2 of mercury from the synthetic effluent in less than 72 h. The immobilized cells could be reused for multiple cycles.
Starting Page	25
Ending Page	34
Page Count	10
File Format	PDF
ISSN	09239820
Journal	Biodegradation
Volume Number	23
Issue Number	1
e-ISSN	15729729
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-05-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Enterobacter sp. Mercury bioremediation Mercury bioaccumulation Immobilized cell Soil Science & Conservation Microbiology Waste Management/Waste Technology Geochemistry Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Terrestrial Pollution
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Environmental Engineering Bioengineering Microbiology

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