Advanced Drinking Groundwater As Phytofiltration by the Hyperaccumulating Fern <i>Pteris vittata</i>

The reuse of <i>Pteris vittata</i> plants for multiple phytofiltration cycles is a main issue to allow an efficient phytoremediation of arsenic (As)-contaminated groundwater. Here, we assessed the capacity of phytofiltration of <i>P. vittata</i> plants grown for two cycles on...

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Main Authors: Davide Marzi, Maria Luisa Antenozio, Sara Vernazzaro, Clara Sette, Enrico Veschetti, Luca Lucentini, Giancarlo Daniele, Patrizia Brunetti, Maura Cardarelli
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/13/16/2187
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author Davide Marzi
Maria Luisa Antenozio
Sara Vernazzaro
Clara Sette
Enrico Veschetti
Luca Lucentini
Giancarlo Daniele
Patrizia Brunetti
Maura Cardarelli
author_facet Davide Marzi
Maria Luisa Antenozio
Sara Vernazzaro
Clara Sette
Enrico Veschetti
Luca Lucentini
Giancarlo Daniele
Patrizia Brunetti
Maura Cardarelli
author_sort Davide Marzi
collection DOAJ
description The reuse of <i>Pteris vittata</i> plants for multiple phytofiltration cycles is a main issue to allow an efficient phytoremediation of arsenic (As)-contaminated groundwater. Here, we assessed the capacity of phytofiltration of <i>P. vittata</i> plants grown for two cycles on naturally As-contaminated drinking water (collected in Central Italy), spaced by a growth cycle on non-contaminated water (N cycle). <i>P. vittata</i> young plants, with extensive frond and root development, were suspended individually in 15 L of water with initial As of 59 µg/L, without any additional treatment or water refilling. During cycle 1, in 45 days <i>P. vittata</i> plants reduced As concentration below 10 µg/L, the allowed EU limits for drinking water. During the subsequent 30 day-N cycle on non-contaminated water, no leaching of As from the roots was observed, while the water pH increased 0.9 Units, but is within the allowed limits. During cycle 2, under the same conditions as cycle 1, As concentration decreased below 10 µg/L in less than seven days. These results show that <i>P. vittata</i> young plants, previously used for the phytofiltration of As, do not extrude As and, when reused, remove As much more rapidly. No additional treatments were required during phytofiltration and thus this represents a sustainable, efficient, and scalable strategy.
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spelling doaj.art-cac6992a759a4259992bdeaaa11fe64c2023-11-22T10:13:54ZengMDPI AGWater2073-44412021-08-011316218710.3390/w13162187Advanced Drinking Groundwater As Phytofiltration by the Hyperaccumulating Fern <i>Pteris vittata</i>Davide Marzi0Maria Luisa Antenozio1Sara Vernazzaro2Clara Sette3Enrico Veschetti4Luca Lucentini5Giancarlo Daniele6Patrizia Brunetti7Maura Cardarelli8IBPM-CNR, c/o Dipartimento di Biologia e Biotecnologie, Sapienza Università di Roma P.le A. Moro 5, 00185 Roma, ItalyIBPM-CNR, c/o Dipartimento di Biologia e Biotecnologie, Sapienza Università di Roma P.le A. Moro 5, 00185 Roma, ItalyIBPM-CNR, c/o Dipartimento di Biologia e Biotecnologie, Sapienza Università di Roma P.le A. Moro 5, 00185 Roma, ItalyWater Quality and Health Unit, Department Environmental and Health, Italian National Institute of Health, 00185 Roma, ItalyWater Quality and Health Unit, Department Environmental and Health, Italian National Institute of Health, 00185 Roma, ItalyWater Quality and Health Unit, Department Environmental and Health, Italian National Institute of Health, 00185 Roma, ItalyEgato1-Vt Ente di Governo Dell’A.T.O. N° 1 Lazio Nord—Viterbo c/o Provincia di, Viterbo Via Saffi 49, 1100 Viterbo, ItalyIBPM-CNR, c/o Dipartimento di Biologia e Biotecnologie, Sapienza Università di Roma P.le A. Moro 5, 00185 Roma, ItalyIBPM-CNR, c/o Dipartimento di Biologia e Biotecnologie, Sapienza Università di Roma P.le A. Moro 5, 00185 Roma, ItalyThe reuse of <i>Pteris vittata</i> plants for multiple phytofiltration cycles is a main issue to allow an efficient phytoremediation of arsenic (As)-contaminated groundwater. Here, we assessed the capacity of phytofiltration of <i>P. vittata</i> plants grown for two cycles on naturally As-contaminated drinking water (collected in Central Italy), spaced by a growth cycle on non-contaminated water (N cycle). <i>P. vittata</i> young plants, with extensive frond and root development, were suspended individually in 15 L of water with initial As of 59 µg/L, without any additional treatment or water refilling. During cycle 1, in 45 days <i>P. vittata</i> plants reduced As concentration below 10 µg/L, the allowed EU limits for drinking water. During the subsequent 30 day-N cycle on non-contaminated water, no leaching of As from the roots was observed, while the water pH increased 0.9 Units, but is within the allowed limits. During cycle 2, under the same conditions as cycle 1, As concentration decreased below 10 µg/L in less than seven days. These results show that <i>P. vittata</i> young plants, previously used for the phytofiltration of As, do not extrude As and, when reused, remove As much more rapidly. No additional treatments were required during phytofiltration and thus this represents a sustainable, efficient, and scalable strategy.https://www.mdpi.com/2073-4441/13/16/2187arsenicdrinking waterphytofiltration<i>Pteris vittata</i>
spellingShingle Davide Marzi
Maria Luisa Antenozio
Sara Vernazzaro
Clara Sette
Enrico Veschetti
Luca Lucentini
Giancarlo Daniele
Patrizia Brunetti
Maura Cardarelli
Advanced Drinking Groundwater As Phytofiltration by the Hyperaccumulating Fern <i>Pteris vittata</i>
Water
arsenic
drinking water
phytofiltration
<i>Pteris vittata</i>
title Advanced Drinking Groundwater As Phytofiltration by the Hyperaccumulating Fern <i>Pteris vittata</i>
title_full Advanced Drinking Groundwater As Phytofiltration by the Hyperaccumulating Fern <i>Pteris vittata</i>
title_fullStr Advanced Drinking Groundwater As Phytofiltration by the Hyperaccumulating Fern <i>Pteris vittata</i>
title_full_unstemmed Advanced Drinking Groundwater As Phytofiltration by the Hyperaccumulating Fern <i>Pteris vittata</i>
title_short Advanced Drinking Groundwater As Phytofiltration by the Hyperaccumulating Fern <i>Pteris vittata</i>
title_sort advanced drinking groundwater as phytofiltration by the hyperaccumulating fern i pteris vittata i
topic arsenic
drinking water
phytofiltration
<i>Pteris vittata</i>
url https://www.mdpi.com/2073-4441/13/16/2187
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