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Małgorzata Kida   Ms.  Other 
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Małgorzata Kida published an article in October 2018.
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Sabina Książek

1 shared publications

4
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10
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3
 
Publications
Article 0 Reads 0 Citations The impact of selected parameters on the formation of hydrogen peroxide by sonochemical process Sabina Ziembowicz, Małgorzata Kida, Piotr Koszelnik Published: 01 October 2018
Separation and Purification Technology, doi: 10.1016/j.seppur.2018.04.073
DOI See at publisher website
Article 0 Reads 0 Citations Application of an ultrasonic field for the removal of selected pesticides Małgorzata Kida, Sabina Ziembowicz, Piotr Koszelnik Published: 13 August 2018
E3S Web of Conferences, doi: 10.1051/e3sconf/20184900054
DOI See at publisher website
Article 0 Reads 0 Citations Selected EPs in the water of certain Polish lakes and rivers Sabina Ziembowicz, Małgorzata Kida, Piotr Koszelnik Published: 13 August 2018
E3S Web of Conferences, doi: 10.1051/e3sconf/20184900136
DOI See at publisher website
CONFERENCE-ARTICLE 10 Reads 1 Citation Sonochemical formation of hydrogen peroxide Małgorzata Kida, Sabina Książek, Piotr Koszelnik Published: 16 November 2017
Proceedings, doi: 10.3390/ecws-2-04957
DOI See at publisher website ABS Show/hide abstract

This work detailed in this study utilized 20 kHz ultrasonic irradiation as a mechanism of hydrogen peroxide production. The effects of various operating parameters were investigated, including ultrasonic intensity, solution pH, source of water, initial dibutyl phthalate concentration and the presence of hydrogen peroxide. During the irradiation, the H2O2 concentration arising was monitored. The results indicate that H2O2 is produced by cavitation during ultrasonic irradiation. An increase in ultrasonic intensity increases the amount of hydrogen peroxide produced. The initial pH of the solution does not affect the efficiency of processes substantially. H2O2 is regarded as one of the most effective additives enhancing the sonochemical production of hydroxyl radicals and hydrogen peroxide, but too high a dose is known to exert a negative effect. Above a 0.1 mM dose of H2O2, the amount of H2O2 formed decreased as the concentration of H2O2 increased. Thus, the concentration of hydrogen peroxide plays a crucial role in the extent to which effectiveness of the combined process is enhanced. The negative effect on reactions of the presence of additional components in the reaction solution was also confirmed. It was therefore concluded that experimental evaluation of optimum parameters of hybrid processes is a matter of importance.

 

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