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Biosorption of aluminum, cobalt, and copper ions by Providencia rettgeri isolated from wastewater
Author(s) -
AboAmer Aly E.,
Ramadan Abou Bakr,
AboState Mervat,
AbuGharbia Magdy A.,
Ahmed Hamdy E.
Publication year - 2013
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.201100635
Subject(s) - biosorption , bacillus cereus , chemistry , wastewater , nuclear chemistry , metal ions in aqueous solution , microbiology and biotechnology , aqueous solution , environmental chemistry , bacteria , metal , food science , biology , environmental engineering , environmental science , adsorption , sorption , organic chemistry , genetics
Abstract Twenty‐three bacterial isolates from polluted water and soil were screened for heavy metals resistance (i.e., Al 3+ , Co 2+ , and Cu 2+ ). The most potent isolate was identified by morphological characteristics, biochemical tests and confirmed by API20E kits as Providencia rettgeri MAM‐4. Removal of Al 3+ from aqueous solution by P. rettgeri is more efficient (∼fourfold) than that by B. cereus ATCC 11778 (a comparison strain) at concentration of 200 mg L −1 Al 3+ . P. rettgeri was able to remove Co 2+ more than B. cereus ATCC 11778 at concentration of 50 mg L −1 Co 2+ . Inoculation of P. rettgeri into clay enhanced significantly the removal of Al 3+ , Co 2+ , and Cu 2+ . P. rettegri MI (mutant strain) was able to tolerate more Al 3+ than that of the parent strain. P. rettgeri was resistant to 7 out of 15 antibiotics tested. P. rettgeri MAM‐4 isolated from wastewater had ability to remove Al 3+ , Co 2+ , and Cu 2+ efficiently from aqueous media; and enhanced significantly metal biosporption by clay. This study has revealed that P. rettgeri could be employed as an effective and economic technology for the removal such metal elements from polluted environment.