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Ocena toksyczności kompostów skażonych rtęcią

Wolf M., Traczewska T., Sitarska M., Filyarovskaya V., Hanus-Lorenz B., Hołtra A., Zamorska-Wojdyła D.

Technologia Wody

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2015

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Nr 5 (43)

76--87

PL

Celem badań była ocena toksyczności kompostu wzbogaconego biomasą pofitoreniediacyjną skażoną rtęcią. Eksperyment przeprowadzono w trzech układach: gleba-biomasa bez rtęci (kontrola), gleba-biomasa z rtęcią, gleba-biomasa z rtęcią i zaszczepem mikroorganizmów wyizolowanych ze środowiska opornych na działanie rtęci. Śmiertelność dżdżownic gatunku Eiseniafetida w glebie skażonej rtęcią wykazała, iż dodatek biomasy do stężenia i mgHg/kg s.m. nie wywołuje efektu toksycznego; ponadto nie zauważono śmiertelności dżdżownic w żadnym wykorzystanym podłożu. Na śmiertelność dżdżownic nie miał także wpływu zaszczep mikroorganizmami opornymi na rtęć, które zostały wyizolowane ze środowiska naturalnego.

EN

The aim of the study was to evaluate the toxicity of compost-enriched biomass after phytoremediation contaminated with mercury. The experiment was performed in three schemes: soil-biomass free of mercury (control), soil-biomass with mercury, soil-biomass with mercury inoculated by microorganisms isolated from the environment resistant to mercury. The mortality rate of the Eisenia fetida earthworms in soil contaminated with mercury showed that the addition of biomass to a concentration of l mg Hg/kg DM does not cause toxic effects. The inocula mercury-resistant microorganisms that have been isolated from the environment had no effect on erthworms mortality.

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Assessment of the physiological condition of Salvinia natans L. exposed to copper (II) ions

Hołtra A., Zamorska-Wojdyła D.

Environment Protection Engineering

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2015

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Vol. 41, nr 3

147--158

EN

Salvinia natans L. is a known bioaccumulator of metal ions from the aquatic environment. Exposure of plants to prolonged impact of toxins along with a large dose of the metal affects the physiological condition of the plants. The changes occurring in the plants in the phytoremediation process in contaminated medium culture of 5, 10, 15 and 20 mg Cu/dm3 show two basic physiological parameters: the assimilation pigment content (chlorophyll a and b) responsible for the production of energy in the process of photosynthesis, and the total protein level as the main constituent of the plant. Conducted studies confirmed a negative effect of high concentrations of copper(II) on Salvinia natans L. plants which in these conditions are capable to bioaccumulate metal from each contaminated culture medium.

3

Bioaccumulation capacities of copper(II) ions in Salvinia natans

Hołtra A., Zamorska-Wojdyła D.

Environment Protection Engineering

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2014

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Vol. 40, nr 4

41--51

EN

Capacities of the pleustophytes in the purification of the aquatic environments in Polish climatic zone have been evaluated. Studies of bioaccumulation of copper(II) from culture media contaminated with 5, 10, 15 and 20 mg Cu/dm3 by the plants of Salvinia natans species were performed. The process was carried out for 14 days with the use of artificial plant-breeding species. The balance of the content of copper(II) in dry matter of plants and in the culture media was investigated. Capabilities of Salvinia natans to bioaccumulate copper(II) have been confirmed in all contaminated culture media.