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Title: Bioprecipitation of some toxic metal ions by sewage bacteria
Authors: Shukla, Namrata
Pandey, G S
Issue Date: Sep-1994
Publisher: NISCAIR-CSIR, India
Abstract: The presence of sulphate-reducing bacteria (Desulfoibrio desulfuricans ) in the domestic sewage sludge has been experimentally confirmed. The bacterial count is found to be 7.5 x 106/g sewage sludge. Treatment of solutions of Pb (II), Cu (II), Ce (IV),Mn (II), Hg (II), Ni(II), Co(II) and Zn (II), each containing 500 mg of the cations in 250 mL solution with 10g of the sewage sludge in presence of 1 g sulphur powder and 1g glucose as nutrient, indicates the extent of bioprecipitation of the metal ions in the order: Pb(II) > Cu(II) = Ce(IV) > Mn(II) > Hg(II) > Ni(II) > Co(II) > Zn(II). The effect of experimental conditions and extraneously added materials on the rates of bioprecipitation has also been studied.
Page(s): 308-310
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.01(5) [September 1994]

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