Isolation of lead resistant bacteria from lead contaminated soil samples collected from Sundar Industrial Estate and their potential use in bioremediation

Industrial waste water pollution is one of the most controversial problem especially in countries like pakistan. human activities and the release of industrial waste have resulted the accumulation of metals in the environment. noxious chemicals like heavy metals include cadmium,lead,chromium,copper,nickel,etc.,that pollute the soils,ground water,sediments and surface waters re present in soluble form. biosorpotion is a form of bioremediation by which metal ions are adsorbed from polluted site by microorganisms. samples collected from industrial area were analyzed for lead contamination by flame atomic spectrophotometer. soil samples of sundar industrial estate were highly resistant to different concentrations (300ppm,800ppm,and 1600ppm) of pb+2 whereas,the sample pbfa-458 showed maximum (127.9819mg/l) absorption of pb+2,so can be used for environmental cleanup. from 24 selected lead resistant strains pbfa-136,pbfa-287,pbfa-960 showed resistance to multimetals,multidrug and high lead concentrations i.e 1800ppm,2000ppm. lead resistant strains were predicted as klebsiella or eenterobacter,bacillus,shigella,salmonella and enteroccocus. © 2015,chemical society of pakistan. all rights reserved.