Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

3 Biotechnologia

3 1997

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Characteristics of the ability to uptake cadmium by bacteria biosorbents

100%

Wojnowska-Baryla I. , Stolarczyk E. , Gredzinska A.

Biotechnologia

1997

nr 4

113-124

The ability of the following bacteria: Escherichia coli, Kliebsiella pneumoniae, Proteus mirabilis, Proteus vulgaris, Pseudomonas sp. to uptake cadmium from water solution was investigated. Based on the parameters of Freundlich and Langmuir equations it was found that the kind of equation describing cadmium uptake by bacteria cells depended on the range of initial cadmium concentration in solution. Cadmium uptake by the investigated strains of bacteria from solution with low initial concentration of cadmium proceeded according to the Freundlich model. Increasing of the initial cadmium concentration above 30 mg Cd2+? dm-3 resulted in a change of the cadmium uptake mechanism and sorption was according to the Langmuir model. The best biosorbents were Pseudomonas sp. and Proteus vulgaris which showed high sorption ability in a wide range of initial concentrations (1-200 mg Cd2+ ? dm-3). In the range of low initial cadmium concentration (1-30 mg Cd2+? dm-3), the most effective biosorbent was Kliebsiella pneumoniae.

Rates of pollutants removal and enzyme activities in the activated sludge from anaerobic-aerobic system

100%

Stachowiak D. , Klimiuk E. , Wojnowska-Baryla I. , Stolarczyk E.

Biotechnologia

1997

nr 3

100-108

In the presented work two enzyme activity tests were performed: alkaline phosphates activity to control phosphorus removal and nitrite reductase activity to control the denitrification process. @urj

Characteristics of the ability to uptake cadmium by free and immobilized bacteria Kliebsiella pneumoniae

100%

Wojnowska-Baryla I. , Stolarczyk E. , Gredzinska A.

Biotechnologia

1997

nr 4

103-112

The ability to uptake cadmium of the following biosorbents: alginate gel, free and immobilized in alginate bacteria Kliebsiella pneumoniae was characterized. An average efficiency of cadmium removal from solution with initial cadmium concentration range from 1 to 200 mg Cd2+?dm-3 was 78,6% by alginate gel and immobilized bacteria Kliebsiella pneumoniae and 60% by free bacteria. The maximum efficiency of cadmium removal from solution with initial concentration 1 mg Cd2+? dm-3 was obtained for bacteria immobilized in alginate gel.