Wyniki wyszukiwania

1

Adsorption of mercuric ion from aqueous solutions using activated carbon

100%

Khalkhali R. A., Omidvari R.

Polish Journal of Environmental Studies

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2005

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tom 14

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nr 2

Activated carbon (AC) was prepared from hazelnut shells using two steps of carbonization followed by steam activation. Methylene blue dye was used as a probe for evaluation of the prepared activated carbon. In order to have a better comparison, a commercial grade of activated carbon (powdered) obtained from the Merck Company has also been used in this research as standard. In this paper we have also investigated adsorption of mercuric ion by impregnated activated carbon with different chemicals. It was found that sorption of mercuric ion from aqueous solution by activated carbon can be improved by impregnating AC with suitable chemicals such as sulfur-containing compounds.

2

The effect of heavy metals on photosynthesis

72%

Zolotareva E. K.

Acta Physiologiae Plantarum

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2007

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tom 29

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nr 1 Suppl.

3

Biosorption of lead, mercury, and cadmium ions by Aspergillus terreus immobilized in a natural matrix

72%

Sun Y. M., Horng C.-Y., Chang F.-L., Cheng L.-C., Tian W.-X.

Polish Journal of Microbiology

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2010

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tom 59

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nr 1

37-44

Our aim was to investigate the biosorption of Pb²⁺, Hg²⁺, Cd²⁺ from aqueous solution by Aspergillus terreus (both free and immobilized on loofa sponge discs). Our results show that the adsorption capacity of fungal biomass on loofa sponge (FBLS) is superior to free fungal biomass (FFB). The adsorption selectivity by FBLS was in the order Pb²⁺>Hg²⁺>Cd²⁺. The maximum metal ions adsorbed was 247.2,37.7, 23.8 mg/g FBLS for Pb²⁺, Hg²⁺ and Cd²⁺, respectively. Metal uptake by FBLS was affected by the pH of the metal solution, but independent of temperature (10-50°C). The Langmuir model was more suitable than the Freundlich model to describe the biosorption process of FBLS. The regenerated FBLS was found to be effective for repeated use for five cycles without significant loss in adsorption capacity. This research demonstrates that FBLS possesses excellent capacity for Pb²⁺ biosorption from aqueous solution and industrial wastewaters.

4

Intermingled modulatory and neurotoxic effects of thimerosal and mercuric ions on electrophysiological responses to GABA and NMDA in hippocampal neurons

72%

Wyrembek P., Szczuraszek K., Majewska M. D., Mozrzymas J. W.

Journal of Physiology and Pharmacology

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2010

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tom 61

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nr 6

5

The effect of mercury [Hg2], copper [Cu2] and zinc [Zn2] ions on bacteria isolated from surface microlayer and subsurface water of the Lake Maly Jeziorak

72%

Donderski W., Gluchowska M., Wodkowska A.

Biological Bulletin of Poznań. Supplement

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1996

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tom 33

6

Susceptibility to UV-C and X-rays and repair capacity evaluated in lymphocytes from unexposed and exposed to mercury vapours donors

72%

Cebulska-Wasilewska A., Panek A., Dyga W., Zabinski Z., Moszczynski P.

Folia Histochemica et Cytobiologica. Supplement

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2001

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tom 39

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nr 1

7

Sorpcja jonow rteciowych przez celuloze, preparaty blonnikowe i wybrane produkty spozywcze

58%

Olejnik D., Szeliga M., Gogolewski M.

Bromatologia i Chemia Toksykologiczna

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1997

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tom 30

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nr 3

251-257

Celem pracy było oznaczenie sorpcji Hg+2 przez celulozę w zależności od pH, obecności jonów Mg+2, Ca+2 Cu+2 i Zn+2 oraz przez wybrane surowce i poddane obróbce termicznej warzywa, owoce i nasiona roślin strączkowych z odpadów owocowych.

8

Wpływ jonów rtęci na układ neurosekrecyjny pijawki końskiej Haemopis sanquisuga (L.). II. Badania ultrastrukturalne

51%

Czechowicz K., Skowerska M., Jasik K., Urbanska D.

Acta Biologica Silesiana

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1988

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tom 08

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