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dc.contributor.authorAston, John E.
dc.contributor.authorApel, William A.
dc.contributor.authorLee, Brady D.
dc.contributor.authorPeyton, Brent M.
dc.date.accessioned2017-06-20T15:46:27Z
dc.date.available2017-06-20T15:46:27Z
dc.date.issued2010-12
dc.identifier.citationAston J, Peyton BM, Lee BD, Apel WA, "Effects of cell condition, pH, and temperature on lead, zinc, and copper sorption to Acidithiobacillus caldus strain BC13," J Hazard Mater 2010 184(1-3):34–41en_US
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/13088
dc.description.abstractThis study describes the effects of cell condition, pH, and temperature on lead, zinc, and copper sorption to Acidithiobacillus caldus strain BC13 with a Langmuir model. Copper exhibited the highest loading capacity, 4.76±0.28mmolg−1, to viable cells at pH 5.5. The highest kL(binding-site affinity) observed was 61.2±3.0 Lmmol−1 to dehydrated cells at pH 4.0. The pHs that maximized loading capacities and binding-site affinities were generally between 4.0 and 5.5, where the sum of free-proton and complexedmetal concentrations was near a minimum. Of additional importance, lead, zinc, and copper sorbed to viable cells at pH values as low as 1.5. Previous studies with other acidithiobacilli did not measure viablecell sorption below pH 4.0. In separate experiments, desorption studies showed that far less copper was recovered from viable cells than any other metal or cell condition, suggesting that uptake may play an important role in copper sorption by At. caldus strain BC13. To reflect an applied system, the sorption of metal mixtures was also studied. In these experiments, lead, zinc, and copper sorption from a tertiary mixture were 40.2±4.3%, 28.7±3.8%, and 91.3±3.0%, respectively, of that sorbed in single-metal systems.en_US
dc.titleEffects of cell condition, pH, and temperature on lead, zinc, and copper sorption to Acidithiobacillus caldus strain BC13en_US
dc.typeBooken_US
mus.citation.extentfirstpage34en_US
mus.citation.extentlastpage41en_US
mus.citation.issue1-3en_US
mus.citation.journaltitleJournal of Hazardous Materialsen_US
mus.citation.volume184en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.1016/j.jhazmat.2010.07.110en_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentChemical Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US
mus.relation.researchgroupThermal Biology Institute.en_US
mus.data.thumbpage39en_US


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