Magnetic and electric field accelerate Phytoextraction of copper Lemna minor duckweed.

In accordance with the opinion of the World Health Organization and the World Water Council the development of effective technologies for the treatment of wastewater from heavy metals for their discharge into water bodies or reuse is an urgent task nowadays. Phytoremediation biotechnologies is the m...

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Autores principales:	Natalia Politaeva, Vladimir Badenko
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6c3bf96a430f404d93f2c5f40b0eca4d
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spelling	oai:doaj.org-article:6c3bf96a430f404d93f2c5f40b0eca4d2021-12-02T20:18:43ZMagnetic and electric field accelerate Phytoextraction of copper Lemna minor duckweed.1932-620310.1371/journal.pone.0255512https://doaj.org/article/6c3bf96a430f404d93f2c5f40b0eca4d2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0255512https://doaj.org/toc/1932-6203In accordance with the opinion of the World Health Organization and the World Water Council the development of effective technologies for the treatment of wastewater from heavy metals for their discharge into water bodies or reuse is an urgent task nowadays. Phytoremediation biotechnologies is the most environmentally friendly and cheapest way of the treatment of wastewater, suitable for sustainable development principals. The main disadvantage of the phytoremediation is the slow speed of the process. A method for accelerating the process of phytoremediation by the combined effect of magnetic and weak electric fields is proposed. The purpose of this study is to determine the values of the parameters of the magnetic and weak electric fields that are most suitable for extracting cuprum ions from wastewater using the higher aqua plants (Lemna minor). A corresponding technological process based on the results of the study is proposed. The results have shown that the removal of copper cations from sulfate solutions effectively occurs in the initial period of time (1-5 hours) under the influence of a magnetic field with an intensity of H = 2 kA/m. Under the combined influence of an electrical current with density j = 240 μA/cm2 and a magnetic field (H = 2 kA/m) the highest rate of copper extraction by duckweed leaves is achieved. Under these conditions, the greatest growth and development of plant leaves occurs. The paper presents the results of determining of the parameters of the electrochemical release from the eluate of the spent phytomass of duckweed. It has been determined that the release of metal occurs at E = 0.32 V. An original scheme for wastewater treatment from copper with subsequent separation of copper from the spent phytomass of duckweed is proposed. In general, the presented results are a scientific justification of wastewater treatment technologies and a contribution to resolving the crisis in the field of fresh water supply. An important contribution in the circular economy is a technology recommendation proposed for recovering copper from duckweed after wastewater treatment.Natalia PolitaevaVladimir BadenkoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 8, p e0255512 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Natalia Politaeva Vladimir Badenko Magnetic and electric field accelerate Phytoextraction of copper Lemna minor duckweed.
description	In accordance with the opinion of the World Health Organization and the World Water Council the development of effective technologies for the treatment of wastewater from heavy metals for their discharge into water bodies or reuse is an urgent task nowadays. Phytoremediation biotechnologies is the most environmentally friendly and cheapest way of the treatment of wastewater, suitable for sustainable development principals. The main disadvantage of the phytoremediation is the slow speed of the process. A method for accelerating the process of phytoremediation by the combined effect of magnetic and weak electric fields is proposed. The purpose of this study is to determine the values of the parameters of the magnetic and weak electric fields that are most suitable for extracting cuprum ions from wastewater using the higher aqua plants (Lemna minor). A corresponding technological process based on the results of the study is proposed. The results have shown that the removal of copper cations from sulfate solutions effectively occurs in the initial period of time (1-5 hours) under the influence of a magnetic field with an intensity of H = 2 kA/m. Under the combined influence of an electrical current with density j = 240 μA/cm2 and a magnetic field (H = 2 kA/m) the highest rate of copper extraction by duckweed leaves is achieved. Under these conditions, the greatest growth and development of plant leaves occurs. The paper presents the results of determining of the parameters of the electrochemical release from the eluate of the spent phytomass of duckweed. It has been determined that the release of metal occurs at E = 0.32 V. An original scheme for wastewater treatment from copper with subsequent separation of copper from the spent phytomass of duckweed is proposed. In general, the presented results are a scientific justification of wastewater treatment technologies and a contribution to resolving the crisis in the field of fresh water supply. An important contribution in the circular economy is a technology recommendation proposed for recovering copper from duckweed after wastewater treatment.
format	article
author	Natalia Politaeva Vladimir Badenko
author_facet	Natalia Politaeva Vladimir Badenko
author_sort	Natalia Politaeva
title	Magnetic and electric field accelerate Phytoextraction of copper Lemna minor duckweed.
title_short	Magnetic and electric field accelerate Phytoextraction of copper Lemna minor duckweed.
title_full	Magnetic and electric field accelerate Phytoextraction of copper Lemna minor duckweed.
title_fullStr	Magnetic and electric field accelerate Phytoextraction of copper Lemna minor duckweed.
title_full_unstemmed	Magnetic and electric field accelerate Phytoextraction of copper Lemna minor duckweed.
title_sort	magnetic and electric field accelerate phytoextraction of copper lemna minor duckweed.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/6c3bf96a430f404d93f2c5f40b0eca4d
work_keys_str_mv	AT nataliapolitaeva magneticandelectricfieldacceleratephytoextractionofcopperlemnaminorduckweed AT vladimirbadenko magneticandelectricfieldacceleratephytoextractionofcopperlemnaminorduckweed
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Magnetic and electric field accelerate Phytoextraction of copper Lemna minor duckweed.

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