Nickel biosorption by Acinetobacter baumannii and Pseudomonas aeruginosa isolated from industrial wastewater
Nickel biosorption ability was evaluated in two bacterial strains: Acinetobacter baumannii UCR-2971 and Pseudomonas aeruginosa UCR-2957, resulting in greatest adsorption at pH 4.5 and a residence time of 100 minutes. Biosorption isotherms showed that the process follows the Langmuir model. The maximum adsorption rates (Nmax) were 8.8 and 5.7 mg·g-1 for A. baumannii and P. aeruginosa, respectively; however, affinity constants suggest that P. aeruginosa (K=1.28) has higher affinity for nickel than A. baumannii (K=0.68). It is suggested that both strains could be used for wastewater treatment, as long as the concentration of Ni2+ is within the range of mg·L-1.
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Sociedade Brasileira de Microbiologia
2006
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oai:scielo:S1517-838220060004000122007-03-01Nickel biosorption by Acinetobacter baumannii and Pseudomonas aeruginosa isolated from industrial wastewaterRodríguez,Carlos E.Quesada,Adolfo biosorption nickel Acinetobacter baumannii Pseudomonas aeruginosa wastewater treatment Nickel biosorption ability was evaluated in two bacterial strains: Acinetobacter baumannii UCR-2971 and Pseudomonas aeruginosa UCR-2957, resulting in greatest adsorption at pH 4.5 and a residence time of 100 minutes. Biosorption isotherms showed that the process follows the Langmuir model. The maximum adsorption rates (Nmax) were 8.8 and 5.7 mg·g-1 for A. baumannii and P. aeruginosa, respectively; however, affinity constants suggest that P. aeruginosa (K=1.28) has higher affinity for nickel than A. baumannii (K=0.68). It is suggested that both strains could be used for wastewater treatment, as long as the concentration of Ni2+ is within the range of mg·L-1.info:eu-repo/semantics/openAccessSociedade Brasileira de MicrobiologiaBrazilian Journal of Microbiology v.37 n.4 20062006-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400012en10.1590/S1517-83822006000400012 |
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Rodríguez,Carlos E. Quesada,Adolfo |
| spellingShingle |
Rodríguez,Carlos E. Quesada,Adolfo Nickel biosorption by Acinetobacter baumannii and Pseudomonas aeruginosa isolated from industrial wastewater |
| author_facet |
Rodríguez,Carlos E. Quesada,Adolfo |
| author_sort |
Rodríguez,Carlos E. |
| title |
Nickel biosorption by Acinetobacter baumannii and Pseudomonas aeruginosa isolated from industrial wastewater |
| title_short |
Nickel biosorption by Acinetobacter baumannii and Pseudomonas aeruginosa isolated from industrial wastewater |
| title_full |
Nickel biosorption by Acinetobacter baumannii and Pseudomonas aeruginosa isolated from industrial wastewater |
| title_fullStr |
Nickel biosorption by Acinetobacter baumannii and Pseudomonas aeruginosa isolated from industrial wastewater |
| title_full_unstemmed |
Nickel biosorption by Acinetobacter baumannii and Pseudomonas aeruginosa isolated from industrial wastewater |
| title_sort |
nickel biosorption by acinetobacter baumannii and pseudomonas aeruginosa isolated from industrial wastewater |
| description |
Nickel biosorption ability was evaluated in two bacterial strains: Acinetobacter baumannii UCR-2971 and Pseudomonas aeruginosa UCR-2957, resulting in greatest adsorption at pH 4.5 and a residence time of 100 minutes. Biosorption isotherms showed that the process follows the Langmuir model. The maximum adsorption rates (Nmax) were 8.8 and 5.7 mg·g-1 for A. baumannii and P. aeruginosa, respectively; however, affinity constants suggest that P. aeruginosa (K=1.28) has higher affinity for nickel than A. baumannii (K=0.68). It is suggested that both strains could be used for wastewater treatment, as long as the concentration of Ni2+ is within the range of mg·L-1. |
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Sociedade Brasileira de Microbiologia |
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2006 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400012 |
| work_keys_str_mv |
AT rodriguezcarlose nickelbiosorptionbyacinetobacterbaumanniiandpseudomonasaeruginosaisolatedfromindustrialwastewater AT quesadaadolfo nickelbiosorptionbyacinetobacterbaumanniiandpseudomonasaeruginosaisolatedfromindustrialwastewater |
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