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This paper presents the results of research on the possibility of photodecolourization of trace amounts of copper complexes of chlorophyllins (E141(ii) commercial dye) in water (sewage). Experiments were carried out in model UV-VIS/E141 (ii)/TiO₂/H₂O and UV-VIS/E141(ii)/H₂O systems. The degree of decolourization of the dye was determined spectrophotometrically. The loss of dye in a UV-VIS/E141(ii)/TiO₂/H₂O...
Photodegradation of milk solutions (dairy sewage substitutes) occurred both in the presence and absence of TiO2 photocatalyst, as it was monitored using COD measurements. At lower milk concentration the photoreaction rates were directly proportional to the concentration. Small additions of hydrogen peroxide enhanced greatly milk photodegradation, especially in the presence of titanium dioxide photocatalyst.
A three-phase reactor with an air stream controlled by a draft tube was applied to ETBE synthesis from isobutene and ethanol under atmospheric pressure in the presence of Amberlyst 15 resin. It was found that when excess of ethanol was used, the catalytic reaction was highly selective and proceeded as 1st order towards isobutene. The reaction product, ETBE, if not removed from the mixture, retarded...
Celem pracy było ocenienie, jaki wpływ mają wolnozmienne pola magnetyczne (ELF-MF) (o parametrach najczęściej stosowanych w terapii) na namnażanie się bakterii Staphylococcus aureus. Stosując metodę posiewu ilościowego w określonych godzinach doświadczenia, w których poddawano zawiesiny bakterii Staphylococcus aureus ATCC 25923 ekspozycji na ELF-MF, nie stwierdzono istotnych statystycznie różnic pomiędzy...
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