Potential of Philippine sunflower variants for the phytoremediation of copper contaminated substrate

Phytoremediation is the process of using plants to remove, degrade, and stabilize contaminants in water and soil. In this study Sunflower (Helianthus annuus) is used for the phytoremediation of copper-contaminated soil since it is fast-growing and can accumulate heavy metals in soil. Three variants...

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Main Author: Poral, Neil Phillip J.
Format: text
Language:English
Published: Animo Repository 2020
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Online Access:https://animorepository.dlsu.edu.ph/etd_masteral/5917
https://animorepository.dlsu.edu.ph/cgi/viewcontent.cgi?article=12893&context=etd_masteral
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Institution: De La Salle University
Language: English
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spelling oai:animorepository.dlsu.edu.ph:etd_masteral-128932022-04-11T06:56:50Z Potential of Philippine sunflower variants for the phytoremediation of copper contaminated substrate Poral, Neil Phillip J. Phytoremediation is the process of using plants to remove, degrade, and stabilize contaminants in water and soil. In this study Sunflower (Helianthus annuus) is used for the phytoremediation of copper-contaminated soil since it is fast-growing and can accumulate heavy metals in soil. Three variants of Philippine Sunflower (F1 Vincent 2 Choice, F1 Vincent 2 Fresh, and Sunrich Orange) were evaluated for the phytoremediation of soil with 177.16 ppm Cu as Cu2+ . Among the three variants, F1 Vincent 2 Choice performed the best in terms of Cu uptake at 3574.22 mg Cu/kg dry biomass. It is also noteworthy that with higher Cu concentration and longer exposure time, more Cu is removed from the soil with Cu concentrations ranging 124.84 – 242.16 ppm. It can be observed that H. annuus is a good hyperaccumulator with a bioconcentration factor (BCF) after 3 weeks ranging from 6.7 – 10.2. Also, during the early stages more Cu was found to concentrate within the roots. However, with longer exposure time, Cu was observed to be translocated to the aerial parts, i.e. the shoots. The translocation factor (TF) after 3 weeks ranging from 0.17 – 0.23. The Cu concentration in the roots was always higher than that of the shoots. Interestingly, in the latter stages, the total amount of Cu in the shoots was always higher than that of the roots due to the amount of biomass. The Cu uptake kinetics of H. annuus was evaluated and it was found out that it best fits with an n=0.7 order model with an average R2 value of 0.967 with a rate constant, k, of 0.0475-0.0491 mg0.3 -kg-0.3 -wk-1 . 2020-06-01T07:00:00Z text application/pdf https://animorepository.dlsu.edu.ph/etd_masteral/5917 https://animorepository.dlsu.edu.ph/cgi/viewcontent.cgi?article=12893&context=etd_masteral Master's Theses English Animo Repository Phytoremediation Sunflowers—Philippines Soils—Copper content Soil pollution Chemical Engineering
institution De La Salle University
building De La Salle University Library
continent Asia
country Philippines
Philippines
content_provider De La Salle University Library
collection DLSU Institutional Repository
language English
topic Phytoremediation
Sunflowers—Philippines
Soils—Copper content
Soil pollution
Chemical Engineering
spellingShingle Phytoremediation
Sunflowers—Philippines
Soils—Copper content
Soil pollution
Chemical Engineering
Poral, Neil Phillip J.
Potential of Philippine sunflower variants for the phytoremediation of copper contaminated substrate
description Phytoremediation is the process of using plants to remove, degrade, and stabilize contaminants in water and soil. In this study Sunflower (Helianthus annuus) is used for the phytoremediation of copper-contaminated soil since it is fast-growing and can accumulate heavy metals in soil. Three variants of Philippine Sunflower (F1 Vincent 2 Choice, F1 Vincent 2 Fresh, and Sunrich Orange) were evaluated for the phytoremediation of soil with 177.16 ppm Cu as Cu2+ . Among the three variants, F1 Vincent 2 Choice performed the best in terms of Cu uptake at 3574.22 mg Cu/kg dry biomass. It is also noteworthy that with higher Cu concentration and longer exposure time, more Cu is removed from the soil with Cu concentrations ranging 124.84 – 242.16 ppm. It can be observed that H. annuus is a good hyperaccumulator with a bioconcentration factor (BCF) after 3 weeks ranging from 6.7 – 10.2. Also, during the early stages more Cu was found to concentrate within the roots. However, with longer exposure time, Cu was observed to be translocated to the aerial parts, i.e. the shoots. The translocation factor (TF) after 3 weeks ranging from 0.17 – 0.23. The Cu concentration in the roots was always higher than that of the shoots. Interestingly, in the latter stages, the total amount of Cu in the shoots was always higher than that of the roots due to the amount of biomass. The Cu uptake kinetics of H. annuus was evaluated and it was found out that it best fits with an n=0.7 order model with an average R2 value of 0.967 with a rate constant, k, of 0.0475-0.0491 mg0.3 -kg-0.3 -wk-1 .
format text
author Poral, Neil Phillip J.
author_facet Poral, Neil Phillip J.
author_sort Poral, Neil Phillip J.
title Potential of Philippine sunflower variants for the phytoremediation of copper contaminated substrate
title_short Potential of Philippine sunflower variants for the phytoremediation of copper contaminated substrate
title_full Potential of Philippine sunflower variants for the phytoremediation of copper contaminated substrate
title_fullStr Potential of Philippine sunflower variants for the phytoremediation of copper contaminated substrate
title_full_unstemmed Potential of Philippine sunflower variants for the phytoremediation of copper contaminated substrate
title_sort potential of philippine sunflower variants for the phytoremediation of copper contaminated substrate
publisher Animo Repository
publishDate 2020
url https://animorepository.dlsu.edu.ph/etd_masteral/5917
https://animorepository.dlsu.edu.ph/cgi/viewcontent.cgi?article=12893&context=etd_masteral
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