|
KMID : 1024520000090040331
|
|
Journal of the Environmental Sciences
2000 Volume.9 No. 4 p.331 ~ p.337
|
|
|
A Variation of Microorganisms by the Biosorption of Pb\ulcorner
|
|
Kim Dong-Seog
Suh Jung-Ho
Song Seung-Koo
|
|
|
Abstract
|
|
|
|
The variation of microorganisms (activated slude, Saccharomyces cerevisiae, Aureobasidium pullulans) caused by the biosorption of was observed by TEM and microscope. By the TEM observation of S. cerevisiae, the plasmolysis and lysis of cell wall or cell membrane were occurred by the penetration of into the inner cellular region. However, in the case of A. pullulans, the plasmolysis and lysis of cell wall or cell membrane were not occurred because of the prevention of penetration by the extracelluar polymeric substances (EPS). A flocculation of microorganisms, in the case of A. pullulans, was observed by the accumulation after 3~4 h and the color was changed from white to black after 1 day. The flocculation of activated sludge was improved by the accumulation after 1 h, however, the floc was broken up and the settling efficiency decreased after 1 day
|
|
|
KEYWORD
|
|
|
biosorption, bioaccumulation, Pb\ulcorner, activated sludge, Saccharomyces cerevisiae, Aureobasidium pullulans, EPS
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|