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Zmiany stężenia substancji powierzchniowo czynnych w systemie kanalizacyjnym

100%

Dymaczewski Z., Ginter-Kramarczyk D., Komorowska-Kaufman M., Kruszelnicka I., Wyrwas B.

Ekonomia i Środowisko

2013

nr 4[47]

Efficiency of non-ionic surfactant removal in biological sewage treatment plants

100%

Traczyk L., Szymanski A., Wyrwas B., Jaroszynski T., Lukaszewski Z.

Polish Journal of Environmental Studies

2006

tom 15

nr 3

The removal of non-ionic surfactants (NS), as well as a long-chained ethoxylates, short-chained NS and poly(ethylene glycols)(PEG), was investigated in two sewage treatment plants (STP) of the activated sludge type and one trickling filter type. The indirect tensammetric method (ITM), and the ITM combined with the Bismuth Active substances (BiAS) separation scheme (BiAS-ITT) were used for the determination of NS and their metabolites. on average, 85% reduction of total Ns was determined in the activated sludge type STP and 53% reduction in the case of the trickling filter type STP. significant concentrations of NS metabolites (short-chained NS and PEG) were determined in raw sewage, which indicate that NS biodegradation had already started in the sewer system. Both tensammetric methods prove to be a useful tool in monitoring Ns and their metabolites in STP.

Surfactants in the River Warta: 1990-2000

86%

Szymanski A., Wyrwas B., Jesiolowska A., Kazmierczak S., Przybysz T., Grodecka J., Lukaszewski Z.

Polish Journal of Environmental Studies

2001

tom 10

nr 5

Data concerning the systematic determination of anionic surfactants (AS) and non-ionic surfactants (NS) over the period 1990-2000 in a single sampling point (Poznan) is reported, as well as data concerning the determination of these surfactants along the whole of the River Warta measured in 1997-1999. The indirect tensammetric method was applied for the determination of non-ionic surfactants, while the MBAS method was applied for the determination of anionic surfactants. The: average concentration of NS over the period 1990-2000 showed a highly increasing tendency, from approximately 25 mug l(-1) to approximately 150 mug l(-1). The average spring-summer concentration of AS over this period fluctuated around the value of 140 mug l(-1), while autumn-winter average concentrations showed a gradual decrease in average concentration over the last five years, from approximately 300 mug l(-1) to approximately 150 mug l(-1).

Ograniczanie wyników

2 Polish Journal of Environmental Studies

1 Ekonomia i Środowisko

3 Wyrwas B.

2 Lukaszewski Z.

2 Szymanski A.

1 Dymaczewski Z.

1 Ginter-Kramarczyk D.

1 Grodecka J.

1 Jaroszynski T.

1 Jesiolowska A.

1 Kazmierczak S.

1 Komorowska-Kaufman M.

1 Kruszelnicka I.

1 Przybysz T.

1 Traczyk L.

1 2013

1 2006

1 2001

Wyniki wyszukiwania

Zmiany stężenia substancji powierzchniowo czynnych w systemie kanalizacyjnym

Efficiency of non-ionic surfactant removal in biological sewage treatment plants

Surfactants in the River Warta: 1990-2000