Wyniki wyszukiwania

1

Mutowanie mleka

100%

Koscielniak P.

Dostawcy dla Przemysłu Mleczarskiego

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2003

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nr 4

27

2

Taksonomiczne wskaźniki rozwoju ekonomicznego województw i powiatów

51%

Koscielniak P., Szewczyk M. W., Tokarski T.

Wiadomości Statystyczne

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2014

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tom 59

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nr 09

3

Sorption of 137Cs and Pb on sediment samples from a drinking water reservoir

39%

Szarlowicz K., Reczynski W., Golas J., Koscielniak P., Skiba M., Kubica B.

Polish Journal of Environmental Studies

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2011

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tom 20

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nr 5

This study focused on 137Cs and Pb accumulation in sediments from the Dobczyce Reservoir in southern Poland. Elements’ spatial distribution as well as their distribution in sediment core samples were analyzed. The conditions of cesium and lead desorption were also investigated. The distribution coefficient for 137Cs (KCs) was obtained using a radiometric determination in combination with static ion-exchange chromatography.Determination of the distribution coefficient for Pb (KPb) was performed by means of atomic absorption spectrometry (electrothermal technique). The experiments were carried out considering various concentrations of potassium and calcium ions (from 5・10⁻³ to 10⁻⁵ mol・dm⁻³ by addition of KNO₃ and Ca(NO₃)₂, respectively). It was found that: a) spatial distribution of anthropogenic 137Cs and Pb in the sediments of the Dobczyce Reservoir results mainly from hydrological conditions of the sedimentation process and, on the other hand, from the sorptive properties of the deposited material b) in the case of 137Cs sorption, a pronounced competitive effect was noted for K ions; much less effect was found for Ca. On the contrary, in the case of lead such a competitive effect was visible for Ca, much less for K. The conditions of 137Cs desorption from the sediments caused by K and Ca ions present in water were estimated.

4

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Determination of chlorite in drinking water and related aspects of environment protection

39%

Herman M., Wieczorek M., Matuszek M., Tokarczyk J., Stafinski M., Koscielniak P.

Journal of Elementology

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2006

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tom 11

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nr 4

One possible method of drinking water treatment is chlorine dioxide disinfection. This technology, however, requires reliable control of its byproducts, including chlorite ions., which pose a threat to human health. In this paper an original procedure for flow indirect determination of chlorite in drinking water was described. This method relies on oxidization of chlorite ions by iron(III) in acid environment measurement of the spectrophotometric signal for the phenanthroline/iron(II) complex. The determinations were carried out by flow analysis with the use of a dedicated set of flow instruments. The method was used for analysis of natural samples collected from various water intakes in Kraków. The new analytic approach was compared with the routinely applied ion chromatography method.

Ograniczanie wyników

1 Dostawcy dla Przemysłu Mleczarskiego

1 Journal of Elementology

1 Polish Journal of Environmental Studies

1 Wiadomości Statystyczne

4 Koscielniak P.

1 Golas J.

1 Herman M.

1 Kubica B.

1 Matuszek M.

1 Reczynski W.

1 Skiba M.

1 Stafinski M.

1 Szarlowicz K.

1 Szewczyk M. W.

1 Tokarczyk J.

1 Tokarski T.

1 Wieczorek M.

1 2014

1 2011

1 2006

1 2003

Mutowanie mleka

Taksonomiczne wskaźniki rozwoju ekonomicznego województw i powiatów

Sorption of 137Cs and Pb on sediment samples from a drinking water reservoir

Determination of chlorite in drinking water and related aspects of environment protection