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Biodegradation of the oily fraction of petrochemical wastewaters isolated from oily soil

100%

Bieszkiewicz e., Mycielski R., Boszczyk-Maleszak H., Wyszkowska B.

Biotechnologia

1997

issue 1

70-78

The paper deals with the possibility of the degradation of the oily fraction of petrochemical wastewaters by bacteria isolated from oily soil.

The microbial transformation of phosphogypsum in thermophilic anaeobic bacterial cultures

100%

Przytocka-Jusiak M., Kowalski W., Rzeczycka M., Mycielski R.

Biotechnologia

1995

issue 2

102-112

In thermophilic anaerobic bacterial cultures phosphogypsum is microbiologically transformed to H2S, SO4(2-), Ca(2+), phosphate and calcium carbonate.The maximal received process efficiency amount to approximately 97%.The postcultivation sediments contan similar amounts of calcium, more phosphorus, more ferrum and magnesum, and smalle amounts of sulfur (mg/g of deposit) than phosphogypsum.The sediments may be applied as an agricultural fertilizer or a source of rare earths ores.

X-MCD Study of Expanded Lattice Permanent Magnet Materials

76%

Kapusta C., Mycielski R., Porębska B., Ahlers D., Attenkofer K., Fischer P., Schütz G.

Acta Physica Polonica A

1997

vol. 91

issue 5

975-979

X-ray magnetic circular dichroism measurements on the cobalt (iron) K edges and samarium L_{2}, L_{3} edges of Sm_{2}Fe_{17}, Sm_{2}Co_{17} and their interstitial hydrides and nitrides are reported. Normal absorption profiles show considerable changes upon nitriding for iron- and cobalt K edge and for samarium L_{2}, L_{3} edges. Much weaker changes are observed upon hydriding. Similarly, significant differences of X-MCD spectra appear between the host Sm_{2}Fe_{17} (Sm_{2}Co_{17}) and the nitrides, whereas X-MCD signals of the hydrides are similar to those of the hosts. The effects are analysed and discussed in terms of influence of interstitial atom neighbours on the Co(Fe) 4p and Sm 5d electronic bands.

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2 Biotechnologia

1 Acta Physica Polonica A

2 1997

1 1995

3 Mycielski R.

1 Ahlers D.

1 Attenkofer K.

1 Bieszkiewicz e.

1 Boszczyk-Maleszak H.

1 Fischer P.

1 Kapusta C.

1 Kowalski W.

1 Porębska B.

1 Przytocka-Jusiak M.

1 Rzeczycka M.

1 Schütz G.

1 Wyszkowska B.

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Biodegradation of the oily fraction of petrochemical wastewaters isolated from oily soil

The microbial transformation of phosphogypsum in thermophilic anaeobic bacterial cultures

X-MCD Study of Expanded Lattice Permanent Magnet Materials