Call Prefix : PR-T

Call Suffix : 2002

Call Cutter : T - NaRe 1

Location : SEARCA Library

Format : TD

Publisher : Bogor Agricultural University (BAU),

Publication Date : 2002

Publication Place : Bogor, Indonesia :

Summary : At present the use of micro organism to control environmental pollution problem due to heavy metals has been increasing. At certain condition sulfate reducing bacteria (SRB) could reduce sulfate compound to sulfide and are potential to control sulfate and heavy metals. This research aimed to isolate sulfate reducing bacteria group from Muara Angke, Jakarta as well as from Cisolok Hot spring water, Sukabumi. In addition, to obtain information on the effect of temperature and incubation period on the sulfide formation of mercury (Hg), lead (Pb), and cadmium (Cd) using hydrogen sulfide (H2S) produced by SRB group. Each of the five isolates of SRB group has been isolated from the two mentioned locations of which of superior isolate was selected to determine the effect of temperature (35,50 and 65°C) and incubation period (7,14, and 21 days) on the sulfide formation of the metals Hg,Pb, and Cd as well as sulfate concentrations. In this reaserch 5 each of SRB superior isolates from Muara Angke and Cisolok were obtained (in the form of mixed culture) which could reduce sulfate and precipitate sulfide of the metals Hg, Pb, and Cd. The highest reduction percentage of sulfate was obtained from Cisolok isolate (37.88%). Also for the reduction percentage of metal solution to its sulfide precipitation : Hg (55.53%), Pb (50.12%) and Cd (36.62%). The highest percentage of sulfide metal compound formation by SRB isolate from Cisolok and Muara Angke was obtained at 21 days of incubation. Compared with SRB isolate from Muara Angke, the Cisolok isolate could reduce more sulfate to its sulfide and precipitate sulfide metal compound of Hg, Pb, and Cd higher than Muara Angke isolate.