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Laboratory Detoxification of Lead and Mercury Elements by Using Pseudomonas aeruginosa | ||
| basrah journal of science | ||
| Article 1, Volume 24, Issue 1, 2006, Pages 104-116 PDF (0 K) | ||
| Authors | ||
| ; ; ; ; | ||
| Abstract | ||
| The present study was conducted to determination the capability of decreasing high concentrations of lead and mercury , in a laboratory experiment , via precipitation using Pseudomonas aeruginosa. Lead and mercury concentrations were measured using flame atomic absorption technique to determine lead concentration before and after cultivation by bacteria, and using cold vapour technique to determine mercury concentrations before and after cultivation by bacteria respectively . The results clarified high percentage of lead precipitation, as the maximum percentage of lead precipitation was 100% at the concentration of 2 ppm after 7 days of incubation period at 37˚c , and the minimum percentage of lead precipitation was 33.5 % at the concentration of 30 ppm after 7days of incubation . Besides , P. aeruginosa has exerted a high percentage of mercury precipitation, since the maximum percentage of mercury precipitation was 100% at the concentration of 2 ppm after 7 days of incubation at 37˚c while minimum percentage of mercury precipitation was 60.5% at the concentration 10 ppm after 7 days of incubation | ||
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