USE OF MODIFIED ADSORBENTS TO REMOVE PESTICIDES FROM WASTEWATER
The migration of highly concentrated pesticide solutions in the soil has been experimentally studied. A mathematical model of the diffusion process in the soil environment has been developed. Based on the mathematical model, a system of equations...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Lviv Polytechnic National University
2022-01-01
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| Series: | Environmental Problems |
| Subjects: | |
| Online Access: | https://science.lpnu.ua/ep/all-volumes-and-issues/volume-7-number-2-2022/use-modified-adsorbents-remove-pesticides |
| _version_ | 1797953562565672960 |
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| author | Vira Sabadash Jaroslaw Gumnitsky Anna Nowik-Zając Iwona Zawierucha Galyna Krylova |
| author_facet | Vira Sabadash Jaroslaw Gumnitsky Anna Nowik-Zając Iwona Zawierucha Galyna Krylova |
| author_sort | Vira Sabadash |
| collection | DOAJ |
| description | The migration of highly concentrated pesticide solutions in the soil has been experimentally studied. A mathematical model of the diffusion process in the soil environment has been developed. Based on the mathematical model, a system of equations for calculating the duration and intensity of the process depending on environmental parameters was obtained. The dependence of the process velocity on the direction of the diffusion front is determined, and the diffusion coefficients, kinetic coefficients of the diffusion process and the diffusion front velocity were calculated. Environmental aspects of pesticide migration were analysed. The diffusion coefficient of glyphosate in the model soil environmentis established. Under the experimental conditions, the diffusion coefficient value was D = 1.75510-12m2/s. The study results of the process of migration of the component up the soil profile indicate the mechanism of molecular diffusion of glyphosate in the soil environment. The results of experimental research and the solution of the mathematical model were used to model the migration process in the Comsol Multiphysics environment. Analysis of theoretical and experimental results showed that the developed model could be used to calculate the dynamics of the spread of the pesticide front in the soil with sufficient accuracy. |
| first_indexed | 2024-04-10T23:05:06Z |
| format | Article |
| id | doaj.art-e9f9489f9d864f549392edc3d22bca9f |
| institution | Directory Open Access Journal |
| issn | 2414-5955 2522-4417 |
| language | English |
| last_indexed | 2024-04-10T23:05:06Z |
| publishDate | 2022-01-01 |
| publisher | Lviv Polytechnic National University |
| record_format | Article |
| series | Environmental Problems |
| spelling | doaj.art-e9f9489f9d864f549392edc3d22bca9f2023-01-13T13:56:16ZengLviv Polytechnic National UniversityEnvironmental Problems2414-59552522-44172022-01-017210310810.23939/ep2022.02.103USE OF MODIFIED ADSORBENTS TO REMOVE PESTICIDES FROM WASTEWATERVira Sabadash0https://orcid.org/0000-0002-6091-4053Jaroslaw Gumnitsky1https://orcid.org/0000-0003-0464-9782Anna Nowik-Zając2https://orcid.org/0000-0001-9753-8314Iwona Zawierucha3https://orcid.org/0000-0002-2975-1911Galyna Krylova4https://orcid.org/0000-0002-4039-3297Lviv Polytechnic National UniversityLviv Polytechnic National UniversityAcademy of Jan Dlugosz in CzestochówAcademy of Jan Dlugosz in CzestochówLviv Polytechnic National UniversityThe migration of highly concentrated pesticide solutions in the soil has been experimentally studied. A mathematical model of the diffusion process in the soil environment has been developed. Based on the mathematical model, a system of equations for calculating the duration and intensity of the process depending on environmental parameters was obtained. The dependence of the process velocity on the direction of the diffusion front is determined, and the diffusion coefficients, kinetic coefficients of the diffusion process and the diffusion front velocity were calculated. Environmental aspects of pesticide migration were analysed. The diffusion coefficient of glyphosate in the model soil environmentis established. Under the experimental conditions, the diffusion coefficient value was D = 1.75510-12m2/s. The study results of the process of migration of the component up the soil profile indicate the mechanism of molecular diffusion of glyphosate in the soil environment. The results of experimental research and the solution of the mathematical model were used to model the migration process in the Comsol Multiphysics environment. Analysis of theoretical and experimental results showed that the developed model could be used to calculate the dynamics of the spread of the pesticide front in the soil with sufficient accuracy.https://science.lpnu.ua/ep/all-volumes-and-issues/volume-7-number-2-2022/use-modified-adsorbents-remove-pesticidesdiffusionpesticidessoilgroundwatersenvironmental protection |
| spellingShingle | Vira Sabadash Jaroslaw Gumnitsky Anna Nowik-Zając Iwona Zawierucha Galyna Krylova USE OF MODIFIED ADSORBENTS TO REMOVE PESTICIDES FROM WASTEWATER Environmental Problems diffusion pesticides soil groundwaters environmental protection |
| title | USE OF MODIFIED ADSORBENTS TO REMOVE PESTICIDES FROM WASTEWATER |
| title_full | USE OF MODIFIED ADSORBENTS TO REMOVE PESTICIDES FROM WASTEWATER |
| title_fullStr | USE OF MODIFIED ADSORBENTS TO REMOVE PESTICIDES FROM WASTEWATER |
| title_full_unstemmed | USE OF MODIFIED ADSORBENTS TO REMOVE PESTICIDES FROM WASTEWATER |
| title_short | USE OF MODIFIED ADSORBENTS TO REMOVE PESTICIDES FROM WASTEWATER |
| title_sort | use of modified adsorbents to remove pesticides from wastewater |
| topic | diffusion pesticides soil groundwaters environmental protection |
| url | https://science.lpnu.ua/ep/all-volumes-and-issues/volume-7-number-2-2022/use-modified-adsorbents-remove-pesticides |
| work_keys_str_mv | AT virasabadash useofmodifiedadsorbentstoremovepesticidesfromwastewater AT jaroslawgumnitsky useofmodifiedadsorbentstoremovepesticidesfromwastewater AT annanowikzajac useofmodifiedadsorbentstoremovepesticidesfromwastewater AT iwonazawierucha useofmodifiedadsorbentstoremovepesticidesfromwastewater AT galynakrylova useofmodifiedadsorbentstoremovepesticidesfromwastewater |