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1

Determination of di-n-butyl Phthalate in Environmental Samples

Ziembowicz Sabina, Kida Małgorzata

Rocznik Ochrona Środowiska

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2023

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Tom 25

242--249

EN

A devised methodology presented here allows the determination of di-n-butyl phthalate in environmental samples (water and landfill leachate) using solid-phase extraction (SPE) and gas chromatography. It is developed based on the use of a gas chromatograph with an FID detector. Preliminary testing has also provided extraction parameters and conditions for chromatographic determination, with calibration applied by reference to an internal standard. The linearity of the calibration curve has been tested in DBP concentrations ranging from 0 to 7.5 mg/L, with the data obtained showing that, throughout this range, the detector readings as a function of the DBP concentrations remain linear (R2 coefficient >0.99). The average levels of recovery of DBP from aqueous solutions of phthalates are in the range of 97-109%, while the corresponding figures for leachates are 85-101%. The values of the coefficients of variation associated with the results obtained do not exceed 5%. The results, therefore, indicate that the applied extraction method is effective as regards DBP extraction from both water and landfill leachate, while numerous other substances present in the leachate from landfill sites apparently do not affect the correct determination of di-n-butyl phthalate by the method developed.

2

Ecological, Economic and Practical Aspects of Water Treatment in the Galvanic Industry

Pohrebennyk Volodymyr, Koszelnik Piotr, Nester Anatoly, Libus Tetiana, Kalda Galyna, Kida Małgorzata, Pękala Agnieszka

Ecological Engineering & Environmental Technology

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2022

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Vol. 23, iss. 1

212--222

EN

The galvanic industry and the production of printed circuit boards are a significant source of environmental pollution, they pose a threat comparable to the chemical industry. They pollute both the atmosphere, the biosphere and the hydrosphere. The paper presents an assessment of the negative impact on the environment, galvanic production and the resulting post-production waste. It was proposed to use the technology of regeneration of used treating solutions, in which the recovered metal can be reused as a secondary raw material for the production of copper products. The regenerated solution, on the other hand, can be used to treat integrated circuit boards. As part of the work, with the use of a microscope, the structural characteristics of the metal surface obtained as a result of the applied regeneration process were carried out. The indicator of the total exposure to substances present in the deposit formed during production was determined, both before (0.045) and after the introduction of the new technology (100). The economic analysis of the planned project based on the new technology showed that the implementation of the presented method of wastewater treatment allows for obtaining significant benefits, both financial and environmental. The analyses performed can be a valuable source of information on how to reduce the impact environment during the production of integrated circuit boards, as well as on the possibilities of obtaining less expensive materials in the form of secondary raw materials.

3

Environmental and Geochemical Parameters of Bottom-Sediment from the Southern Bug Estuary

Mitryasova Olena, Koszelnik Piotr, Gruca-Rokosz Renata, Smyrnov Victor, Smyrnova Svitlana, Kida Małgorzata, Ziembowicz Sabina, Bezsonov Yevhen, Mats Andrii

Journal of Ecological Engineering

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2021

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Vol. 22, nr 2

244--255

EN

The bottom sediments of river hydroecosystems were studied for the gross content of heavy metals (K, Ti Cr, Fe, Ni, Cu, Zn, Rb, Sr and Hg). The environmental and geochemical processes of bottom-sediment formation in aqua landscapes were analyzed, allowing us to stress the need to determine the methodological basis for the correlation-regression dependence of the heavy metal accumulation processes in bottom sediments, as well as total content of organic carbon. The ranking of pairwise correlation coefficients arranged in decreasing order is: TOC:Cu (0.87) >TOC:K (0.82) >TOC: Ni (0.75) > TOC:Sr (0.73) > TOC:Fe, (0.7) >TOC:Ti (0.67) > TOC:Hg (0.63) > TOC: Cr (0.58) >TOC:Rb (0.56) > and TOC:Zn (0.51). The proposed methodological approach determines the environmental and geochemical aspects of the sedimentation processes heavy metals, while also identifying the general trends in hydroecosystems prone to the anthropogenic impact.

4

Research of Aggregatic Stability and Bactericidal Activities of Nanosilver Colloidal Solutions

Yushchishina Anna, Pasichnyk Maria, Mitryasova Olena, Koszelnik Piotr, Gruca-Rokosz Renata, Kida Małgorzata

Rocznik Ochrona Środowiska

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2020

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Tom 22, cz. 1

40--50

EN

The influence of SAS of different chemical nature on aggregate stability and bactericidal action of nano silver colloidal solutions is investigated. Colloidal solutions of silver were obtained by restoring the argentum nitrate agent in a neutral medium. With the help of spectrophotometric method, it has been proved that such solutions are characterized by high aggregate stability compared with the use of other traditional reducing agents. Anionic SAS (sodium dodecylsulfate and sulfanol) and nonionic SAS (OS-20) increase aggregate stability of nano silver solutions, while cationogenic SAS − alcamone promotes rapid coagulation and aggregation of nano silver particles. The study of bactericidal action of the solutions to the E.coli are showed that the nano silve colloidal solution with or without presence of OS-20 and alcamone completely inhibit the growth of colonies of E.coli, that is, it’s have high bactericidal properties.

5

Aspects of Electrochemically Activated Water Solutions Practical Use

Ptashnyk Vadym, Bordun Ihor, Pohrebennyk Volodymyr, Kida Małgorzata, Ziembowicz Sabina, Koszelnik Piotr

Journal of Ecological Engineering

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2020

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Vol. 21, nr 7

222--231

EN

This article analyzes the issue of developing ecologically safe technologies for obtaining the electrochemically activated water solutions for ensuring the rational use of water resources and reducing the volume of discharges of harmful substances into the environment. The necessity of controlling the depth of electrochemical activation for obtaining ecologically safe industrial water solutions and reducing the energy consumption of this process was substantiated. The ecological advantages of electrochemically activated solutions application were presented as compared to the chemical solutions in the technologies of activated carbon surfaces modification to increase the supercapacitors electrode specific capacitance, preparation of the gypsum plaster mixing water to improve the physicochemical properties of gypsum stone, as well as efficiency of use of disinfectant based on the electrochemically activated water solutions solutions, approbated in the sugar production industry. It was experimentally confirmed that the depth of electrochemical activation significantly affects the efficiency of practical use of activated water solutions. The proposed theoretical models allow prediction of the activation modes for solving specific problems.

6

Metody usuwania trwałych zanieczyszczeń organicznych z osadów dennych

Kida Małgorzata, Ziembowicz Sabina, Koszelnik Piotr

Instal

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2019

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nr 6

49--55

PL

Praca zawiera przegląd literatury na temat metod usuwania zanieczyszczeń organicznych z wydobytych osadów dennych. Wśród tych technologii wyróżnia się metody fizyczne, chemiczne, termiczne, biologiczne oraz łączone. Do oczyszczania wydobytych osadów dennych najczęściej stosuje się metody biologiczne. Wymagają one jednak długiego czasu prowadzenia procesu i często toksyczność usuwanych substancji oraz ich ubocznych produktów rozkładu przyczynia się do zahamowania biodegradacji. W tym celu należy poszukiwać nowych, lepszych rozwiązań. W ostatnich latach coraz bardziej popularne są procesy z wykorzystaniem pola ultradźwiękowego oraz odczynnika Fentona, które wpisują się w zasady zielonej chemii. Ponadto metody te można prowadzić w układach łączonych, które zazwyczaj pozwalają na uzyskanie wyższego stopnia degradacji zanieczyszczeń organicznych w porównaniu z procesami pojedynczymi.

EN

The work contains a review of the literature on the methods of removing organic pollutants from dredged bottom sediments. These technologies include physical, chemical, thermal, biological and combined methods. The biological methods are most often used for the treatment of dredged bottom sediments. However, they require a long process time and often the toxicity of the removed substances and their by-products of decomposition contributes to the inhibition of biodegradation. For this purpose, new and better solutions are sought. In recent years, processes using the ultrasonic field and the Fenton reagent, which are part of the principles of green chemistry, are becoming more and more popular. In addition, these methods can be carried out in combined systems, which usually allow a higher degree of degradation of organic contaminants compared to single processes.

7

Osady denne - rola i znaczenie w środowisku

Kida Małgorzata, Ziembowicz Sabina, Koszelnik Piotr

Gospodarka Wodna

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2019

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Nr 10

13--20

PL

Gromadzenie się nadmiernej ilości osadów dennych w rzekach i zbiornikach wodnych powoduje zmniejszenie ich pojemności i głębokości oraz wpływa niekorzystnie na walory użytkowe zbiorników. Nagromadzone osady powodują zmętnienie wód, są miejscem depozycji zanieczyszczeń oraz mają negatywny wpływ na jakość wody. W związku z tym, szczególnie w przypadku płytkich zbiorników małej retencji konieczne jest okresowe usuwanie osadów, czyli bagrowanie. Pozyskane po tym zabiegu osady muszą zostać odpowiednio zagospodarowane bądź unieszkodliwione w zależności od ich składu chemicznego, aby nie stanowiły zagrożenia dla środowiska i organizmów żywych.

EN

The accumulation of excessive amounts of bottom sediments in rivers and water reservoirs reduces their capacity and depth and adversely affects usable properties of reservoirs. Accumulated sediments cause water turbidity, are a source of pollution and have a negative impact on the quality of water. Therefore, it is necessary to periodically remove deposits, i.e. dredging. Bottom sediments obtained after the dredging process must be properly disposed of or management of so that they do not pose a threat to the environment and living organisms.